What are the most common problems with a Jeep Wrangler?

What are the most common problems with a Jeep Wrangler?

This is one of the biggest car repair issues that you’ll face as a Jeep Wrangler owner. Symptoms of the malfunctioning TIPM include issues getting the driver or passenger side window to roll down and issues with the windshield wipers. These two problems are just a few of the many symptoms of a malfunctioning TIPM.

What to do if your Jeep Wrangler has steering problems?

Replacing the shocks, sway bar, and tires can solve the steering problem you may be experiencing with your own Jeep Wrangler. Bring your Jeep to a professional to seek additional assistance to determine the cause of your issue. Another common Jeep Wrangler problem deals with the electrical system of the vehicle.

What are the symptoms of a Jeep Wrangler tipm?

Symptoms of the malfunctioning TIPM include issues getting the driver or passenger side window to roll down and issues with the windshield wipers. These two problems are just a few of the many symptoms of a malfunctioning TIPM. You need to get the TIPM fixed as soon as you begin to witness these problems occurring with your Jeep Wrangler, too.

What causes an oil leak in a Jeep Wrangler?

The oil-burning engine can create leaks from the intake manifold gasket. Exhaust leaks are also possible. Look for a cracked exhaust manifold on your vehicle. Jeeps are known for consuming an excessive amount of oil, so check up on the engine and surrounding spots for leak issues.

What was the problem with the transmission on my Jeep Wrangler?

A certified mechanic found the tcm was faulty. Findings: p0218 high temp operation activated. P0714 transmission temp sensor intermittent. P0613 internal tcm problem.

Why does my Jeep Wrangler keep losing power?

The vehicle keeps losing power at the most inopportune times (passing a vehicle; in a construction zone with no shoulder; on a highway). I have almost gotten into 4 accidents b/c of this problem. Whenever the vehicle goes faster than 70 mph. . . Power is lost. It continually throws off a code of 0369.

Why does my Jeep Wrangler not shift out of second gear?

On my vehicle specifically the O2 sensor codes are coming on and the vehicle will randomly not shift out of second gear which presents itself as a safety hazard when entering high speed freeways and interstates. The O2 sensors were replaced new with oem parts and the codes did not go away.

Why is my Jeep Wrangler not moving out of Park?

See all problems of the 2014 Jeep Wrangler . Vehicle was driven and put into park. When restarted, even though I was able to move the gear shift, the Jeep would not move out of park. One dealership said it coded as the transmission control module and supposedly replaced it along with a transmission flush.

How did we solve the 2002 Wrangler misfire problem?

2002 Wrangler Misfire problem solved!!!!!! Hey everyone! Enter your ride HERE to be a part of MAY’s Ride of the Month Challenge! All, there have been varying degrees of success solving the misfire problem from what I can see. Here are my notes on how we solved in my Wrangler. I have 2002 Wrangler Sport 4.0 stock engine with 141,000 miles.

What kind of engine does a 2002 Wrangler sport have?

I have 2002 Wrangler Sport 4.0 stock engine with 141,000 miles. Here Is what I gave my mechanic when I gave up throwing random parts at the problem. Oil Guage has been reading high pressure – I felt Sending unit bad – It has been that way for 90 days or so. Problem is intermittent

Why was there a recall on the 2012 Jeep Wrangler?

Similar to the older models, issues with the airbags were the main culprit. However, a new issue with this model’s airbags also caused another airbag-related recall that affected millions of cars. Unlike the other models, the Death Wobble isn’t as common in the 2012 Wrangler.

What are the most common problems with Jeep Wranglers?

The third generation of Jeep Wranglers is considered the least dependable. It has the most complaints and lowest-rated reliability among consumers, with multiple issues affecting every part of the vehicle. Let’s take a look at some of the most common issues with Jeep Wranglers of this era. 1. TIPM Failure

2002 Wrangler Misfire problem solved!!!!!! Hey everyone! Enter your ride HERE to be a part of MAY’s Ride of the Month Challenge! All, there have been varying degrees of success solving the misfire problem from what I can see. Here are my notes on how we solved in my Wrangler. I have 2002 Wrangler Sport 4.0 stock engine with 141,000 miles.

I have 2002 Wrangler Sport 4.0 stock engine with 141,000 miles. Here Is what I gave my mechanic when I gave up throwing random parts at the problem. Oil Guage has been reading high pressure – I felt Sending unit bad – It has been that way for 90 days or so. Problem is intermittent

Are there any problems with my 1987 Jeep Wrangler?

Leaking in the A-pillar is well-known among 1987 Jeep Wrangler issues, and it remains a concern for the other generations. Door leakage is especially common among 2002 Jeep Wrangler problems. Poorly sealed doors create a damp environment that may cause unpleasant odors. If the issue gets bad enough, the moisture might damage electrical systems.

When does a Jeep Wrangler go into electric mode?

Since the electric mode distance is limited, the car has a hybrid and gas-only mode that runs on gas for when the battery needs a charge after 30 miles.

Are there any problems with the Jeep Wrangler tipm?

See all problems of the 2020 Jeep Wrangler . Tipm has everything going crazy. When the Jeep is started the wriper start wiping and the the lights quit and there are no blinkers. Also happen when in movement. See all problems of the 2009 Jeep Wrangler .

Is there a problem with my Jeep Wrangler engine?

Blown engines are serious issues that affect a lot of Jeep owners and should be not be taken lightly. If you hear something odd coming from your car engine, you ought to take it over to your dealer or mechanic. One more Jeep issue to point out involves the throttle position sensor.

Since the electric mode distance is limited, the car has a hybrid and gas-only mode that runs on gas for when the battery needs a charge after 30 miles.

Replacing the shocks, sway bar, and tires can solve the steering problem you may be experiencing with your own Jeep Wrangler. Bring your Jeep to a professional to seek additional assistance to determine the cause of your issue. Another common Jeep Wrangler problem deals with the electrical system of the vehicle.

See all problems of the 2020 Jeep Wrangler . Tipm has everything going crazy. When the Jeep is started the wriper start wiping and the the lights quit and there are no blinkers. Also happen when in movement. See all problems of the 2009 Jeep Wrangler .

When do I need to Fix my Jeep Wrangler?

You need to get the TIPM fixed as soon as you begin to witness these problems occurring with your Jeep Wrangler, too. Look out for issues with your headlights and turn signals. If those stop working, you should bring your car in for an inspection. Sometimes your Jeep may die in the middle of the road.

Why does my Jeep Wrangler have steering problems?

The steering problems stem from a poorly welded intermediate shaft. Some dealers will need to replace this part of the steering wheel and steering gearbox in order to fix the controls. It’s important to have all the parts necessary to stabilize the wheel of your Jeep Wrangler.

Are there any recalls on the 2000 Jeep Wrangler?

Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. The 2000 Jeep Wrangler has been recalled 5 times by NHTSA. View Recalls

Why is my ECM going bad on my Jeep Wrangler?

Which means they may try to tell you the tranny is bad because it shifts hard or something when it’s actually the PCM going bad. If they do their homework and read the bulletins they will know that it may take a few shots at a PCM to find a good one and this will fix the problem.

Is there a warranty on a Jeep Wrangler?

Chrysler will do nothing about it but at least they offer a 2yr warranty and the dealership will be there tomorrow to honor it, unlike the fly-by-night rebuild companies. Your rig is at least 12 years old and two wrangler models have been produced since the TJ. I wouldn’t expect Chrysler to continue to offer parts for our rigs.

Do you have a bad PCM on a 2005 Jeep Wrangler?

After reading this I’m guessing you have a bad PCM on either a 2005 or 2006 TJ/LJ with an automatic tranny. Welcome to HELL. You are not alone, there are plenty of posts on this very topic but read this long one below for the full story:

When does a Jeep Wrangler start to wobble?

This death wobble can occur when you are driving on the highway at 50-65 mph. The steering wheel will start to shake, and you may lose control of the vehicle. The whole car will begin to shake violently.

Why is my Jeep Wrangler stuck in one gear?

The transmission may slip or get stuck in one gear. If the vehicle gets locked in one gear while driving on the freeway, the consequences could be deadly. Although the issue is under recall and Jeep pays for the repairs, transmission issues typically come with long repair times. 2. Engine Popping

Why is my Jeep Wrangler making a whining noise?

The pinion seal helps keep fluid from leaking out of the differential. If the differential leaks fluid, it can fail, causing your Wrangler’s gears to seize and lock up the rear wheels while driving. The main symptom of low fluid in the differential is a whining noise while driving.

Is it safe to buy a 2007 Jeep Wrangler?

Although it’s known for its ruggedness, in some years, Jeep dropped the ball and created a very problematic vehicle. Here are the three model years of Wranglers that you should avoid at all costs according to Car Complaints. The 2007 Wrangler was plagued by issues on multiple fronts.

Are there any recalls on the 2008 Jeep Wrangler?

The 2008 Wrangler was plagued by similar issues as the 2007 Wrangler, including faulty airbags that caused a major recall. While the 2008 model has slightly fewer recalls than the 2007 models did with nine total, the 2008 model had far more entries on Car Complaints than the 2007 model did.

What causes random stalling on a Jeep Wrangler?

There are 2x bolts sticking up presses into the harness creating random shorts and misses. No code will appear either. Signs of a failing Fuel pump are, but not limited to: A weak fuel pump with low pressure results in your engine not getting the correct fuel to air mixture it needs to power the vehicle.


Tap the to learn more about the most common Jeep Wrangler problems. The engine may stall when the engine is warmed up. The AC compressor may seize resulting in loss of cold air from the AC vents. Bulletin 13N02 – This program extends the coverage of the brake booster to ten years…

What makes a jeep different from other jeeps?

Although Jeeps are easily discernible compared to other makes of vehicle, there’s still much variety to be found among the various models available. For instance, parts associated with one type of Jeep, like a Wrangler, can be different from those of a Cherokee.

Where can I get help with my Jeep?

Still, even the most resilient vehicles run into problems from time to time. Luckily, Jeep repair assistance can be found online. Although Jeeps are easily discernible compared to other makes of vehicle, there’s still much variety to be found among the various models available.

What makes a jeep a good car to buy?

Jeep vehicles have always been synonymous with adventure and exploration, which is reflected in their rugged nature. More recent Jeep models have stayed true to this durability, but with sleek components that provide a new elegance as well. Still, even the most resilient vehicles run into problems from time to time.

Why is my Jeep Wrangler not starting properly?

A Jeep Wrangler’s starting issue is usually caused by electrical problems, such as a malfunctioning neutral safety switch or starter. In order to correctly repair a Wrangler with a starting issue, the problem must be diagnosed and component replaced. The neutral safety switch is located behind the clutch pedal of a vehicle.

This is one of the biggest car repair issues that you’ll face as a Jeep Wrangler owner. Symptoms of the malfunctioning TIPM include issues getting the driver or passenger side window to roll down and issues with the windshield wipers. These two problems are just a few of the many symptoms of a malfunctioning TIPM.

You need to get the TIPM fixed as soon as you begin to witness these problems occurring with your Jeep Wrangler, too. Look out for issues with your headlights and turn signals. If those stop working, you should bring your car in for an inspection. Sometimes your Jeep may die in the middle of the road.

The steering problems stem from a poorly welded intermediate shaft. Some dealers will need to replace this part of the steering wheel and steering gearbox in order to fix the controls. It’s important to have all the parts necessary to stabilize the wheel of your Jeep Wrangler.

Symptoms of the malfunctioning TIPM include issues getting the driver or passenger side window to roll down and issues with the windshield wipers. These two problems are just a few of the many symptoms of a malfunctioning TIPM. You need to get the TIPM fixed as soon as you begin to witness these problems occurring with your Jeep Wrangler, too.

Why does my Jeep Wrangler Unlimited not start?

Dealer couldn’t get it started at first either. They said it was a transmission issue and changed the valve, gasket oil pan, and plug adapter. Just picked it up today.

Are there any problems with buying a jeep?

When you want a Jeep, there really is no substitute. But knowing what pitfalls might lie ahead can help you be ready to deal with problems as they arise. So, to help you out, here are some common issues and complaints that affect Jeeps and some tips on how to fix or even prevent them.

What are the problems with a Jeep 4.0?

The 4.0 can also develop clogged fuel injectors. Deposits build up on the injectors and disrupt the flow of fuel. That can cause rough idling, misfires, or engine “stumbling.” Many Jeepers swear by various fuel additives that clean the injectors as you run the engine.

What to do if your Jeep starts to wobble?

If you have any loose or worn steering parts, you’ll want to replace them. If your tires and steering parts are all set, but your Jeep’s still wobbling, you’ll want to have your alignment checked. Death Wobble can also affect lifted Jeeps more than stock ones.

Are there any problems with the Jeep Tigershark?

A serious defect in the 2.4L Tigershark engine causes an excessive amount of oil to be burned during normal operation. Owners must constantly top off the oil and have consumption tests run at the dealership, or risk the engine seizing up an… Make room, death wobble. You’re not the only terrible Jeep suspension problem out there.

What causes a Jeep Wrangler to not start?

Your Jeep Wrangler won’t start if you have any of the below faults: 1 Dead or Low Voltage battery 2 A bad Starter 3 Loose Earth Cable 4 Faulty Ignition Switch 5 Battery Terminal Corrosion 6 A faulty Solenoid 7 Bad Starter Relay 8 Faulty Park Neutral Safety Switch 9 Fuel More …

Why is my transmission not working on my Jeep Wrangler?

Instead, the engine revs to 4k, and it will stay in the gear. Only if I let off the gas and allow it to reset, then gradually accelerate will it work properly. The dealership and Jeep have not been able to figure out the issue, having replaced the entire transmission, pcm, and ecu, as well as numerous other parts and sensors.

Your Jeep Wrangler won’t start if you have any of the below faults: 1 Dead or Low Voltage battery 2 A bad Starter 3 Loose Earth Cable 4 Faulty Ignition Switch 5 Battery Terminal Corrosion 6 A faulty Solenoid 7 Bad Starter Relay 8 Faulty Park Neutral Safety Switch 9 Fuel More

Are there any problems with the Jeep Wrangler PCM?

The engine may still crank but won’t be able to start without vital inputs from the computer. There is a very common issue with control modules in 2005 and 2006 models of the Jeep Wrangler. If you keep your Jeep long enough, you’ll probably encounter a situation where you’ll need to repair or replace your Jeep Wrangler PCM.

Do you need to replace the front door on a Jeep Wrangler?

The equipment commonly referred to as power windows and power locks is also mounted inside the door. And, of course, all of these parts may need to be replaced once in a while. Fortunately, here is our comprehensive collection of Jeep Wrangler replacement doors, where you can find everything that your gorgeous 4×4 calls for.

Is the windshield still removable on a 2008 Jeep Wrangler?

In proper Jeep fashion, the 2008 Wrangler’s doors (full-framed or half) are still removable, its windshield is still foldable and the hinges and latches are still exposed. The familiar signature seven-slot grille and round headlamps present a face as distinctive and recognizable as any on the road.

What kind of car is the 2008 Jeep Wrangler?

A short wheelbase, solid front and rear axles and renowned all-wheel-drive systems combine in a perennial favorite of rock crawlers, mudders and light off-roaders alike. Fresh from a complete overhaul in 2007, the 2008 Jeep Wrangler is both the most capable and the most livable ever.

Which is the best door lock for a Jeep Wrangler?

Door and Tailgate Lock Cylinder Kits by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck! Door Check Straps by Crown®.

Which is the best forum for Jeep Wrangler TJ owners?

Become a member of the largest online community for Jeep Wrangler TJ owners and enthusiasts! This is the main discussion forum for Jeep Wrangler TJ / LJ topics. A forum to showcase your rides and build threads. How-to guides for the Jeep Wrangler TJ. Answers to some of the most frequently asked TJ related questions.

Can a Jeep Wrangler be repaired out of pocket?

If the steering issue falls under your Jeep Wrangler or Jeep Gladiator warranty, then it may be reimbursed. However, that means you will pay for the repair upfront and wait for a reimbursement. Also, without the proper warranty, you may have to pay to have this problem solved out of pocket.

What kind of problems does a Jeep Wrangler have?

One of the most common issues your Jeep Wrangler is likely to develop is a stalling problem. The most challenging part of diagnosing a stalling problem is reproducing the conditions that led to the stall in the first place.

Become a member of the largest online community for Jeep Wrangler TJ owners and enthusiasts! This is the main discussion forum for Jeep Wrangler TJ / LJ topics. A forum to showcase your rides and build threads. How-to guides for the Jeep Wrangler TJ. Answers to some of the most frequently asked TJ related questions.

What to do if your Jeep Wrangler won’t start?

Troubleshooting Jeep TJ Wrangler! Won’t Start but Problem Found – Project 2004 If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

What causes a Jeep Wrangler engine to stall out?

When it asks for a lot of fuel, instead of taking off, it stalls out with the demand. This can be caused by the fuel pump or fuel filter. If your Jeep Wrangler’s engine timing is off, it’s going to stall out, misfire, and altogether not run properly. Here are some of the more common causes of an engine timing problem:

Leaking in the A-pillar is well-known among 1987 Jeep Wrangler issues, and it remains a concern for the other generations. Door leakage is especially common among 2002 Jeep Wrangler problems. Poorly sealed doors create a damp environment that may cause unpleasant odors. If the issue gets bad enough, the moisture might damage electrical systems.

What causes death wobble on a Jeep Wrangler?

The death wobble is something many Jeep owners have experienced firsthand. When the wobble kicks in, the driver feels the steering wheel shake violently. It usually happens after hitting a pothole or experiencing another jolt, and can sometimes be triggered by pressing hard on the brake pedal.

Why does my Jeep Wrangler stall while driving?

It happens randomly, once every few weeks- the latest was a couple days ago. It starts again and after sitting about 5-10 minutes and seems to drive fine otherwise. No lights go off, it just dies and I loose power steering.

The death wobble is something many Jeep owners have experienced firsthand. When the wobble kicks in, the driver feels the steering wheel shake violently. It usually happens after hitting a pothole or experiencing another jolt, and can sometimes be triggered by pressing hard on the brake pedal.

Wrangler owners are having the most trouble with the suspension (20%), electrical (19%), and the engine (16%). We’ve listed the most common owner complaints below. The full list is available on CarComplaints.com.

What to do if your Jeep Wrangler wont turn over?

OWNER NOTIFICATION BEGAN APRIL 8, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403. To diagnose, you first need to determine if the problem is electrical or fuel related.

Where does the Jeep Wrangler rank in reliability?

Wrangler owners have made 1,858 complaints over 32 model years. Using our PainRank ™ system we’ve ranked it 6th in overall reliability out of 9 Jeep models, with real electrical and suspension concerns. A list of some of the most common issues Wrangler owners have to deal with.

Why does my Jeep Wrangler JK not start?

Jeep Wrangler JK Won’t Start One Click If your Jeep won’t start and you simply hear one click, then you could have a faulty starter motor. Again, using a voltmeter with a load function, make sure all your voltages are all correct.

OWNER NOTIFICATION BEGAN APRIL 8, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403. To diagnose, you first need to determine if the problem is electrical or fuel related.

Why are there so many problems with my Jeep?

A small amount of build up doesn’t affect the way the vehicle runs, but when it becomes excessive, that’s when problems occur. Luckily it doesn’t require a journeyman’s knowledge to clean the throttle body, although it can become a tedious task for Jeep owners.

Is there a recall on a 2008 Jeep Wrangler?

NHTSA closed an investigation into the fuel leak problems in the 2007-2008 Jeep Wrangler after seven months of testing. Amazing, the safety agency determined there there was no need for a recall, writing off the complaints as nothing more than “internet-related publicity”, saying:

Jeep Wrangler JK Won’t Start One Click If your Jeep won’t start and you simply hear one click, then you could have a faulty starter motor. Again, using a voltmeter with a load function, make sure all your voltages are all correct.

The transmission may slip or get stuck in one gear. If the vehicle gets locked in one gear while driving on the freeway, the consequences could be deadly. Although the issue is under recall and Jeep pays for the repairs, transmission issues typically come with long repair times. 2. Engine Popping

What was the problem with the 2008 Jeep Wrangler?

According to those who suffered a total engine failure, the repairs cost them about $4,400. Furthermore, the NHTSA also reported a lot of braking issues with this model year of the Wrangler. The 2008 Wrangler was plagued by similar issues as the 2007 Wrangler, including faulty airbags that caused a major recall.

Are there any recalls on the Jeep Wrangler?

The National Highway Traffic Safety Administration, or NHTSA, reported that steering problems were the most frequent issue that this model year of Wranglers faced. The NHTSA also reported a lot of airbag issues, and the airbags were also the source of one of the major recalls that Jeep had to do.

Which is the worst rated wrangler on the market?

Similar to the 2007 model, the NHTSA also reported a lot of steering and fuel system problems. The NHTSA also reported a lot of drivetrain issues with the 2008 model. One of the newer models, the 2012 Wrangler is actually the worst rated Wrangler overall according to Car Complaints.

Why are some Jeep Wranglers not up to par?

Here’s why some Wranglers aren’t up to par: Too many attempted upgrades made the 2012 model (and a few others) a bit rocky. It’s difficult to combine so many high-end features, which led to drivetrain issues, loud driving, and many other problems. It’s a result of striving for excellence; mistakes are bound to happen.

The oil-burning engine can create leaks from the intake manifold gasket. Exhaust leaks are also possible. Look for a cracked exhaust manifold on your vehicle. Jeeps are known for consuming an excessive amount of oil, so check up on the engine and surrounding spots for leak issues.

What causes a Jeep Wrangler to get stuck in Park?

Knows a couple things… It is very likely nothing serious, the usual cause for that issue is a broken plastic push rod that is inside the vertical part of the shifter itself. The top button pushes a cam sideways that pushes down on the plastic shift rod that unlocks the shifter.

How do you change the transmission on a Jeep Wrangler?

The top button pushes a cam sideways that pushes down on the plastic shift rod that unlocks the shifter. The shift rod is easily replaced. The ‘T’ top of the shifter is removed by pulling HARD straight up on it.

Worn wheel bearings may contribute to death wobble as well and are very easy to test. Jack up one of your Jeep’s front wheels and grasp the tire at the 12- and 6-o’clock position, then wiggle the tire. If you feel movement, then you most likely have a worn wheel bearing. Check the other side as well.

Is there a recall on the Jeep Wrangler?

In contrast, Jeep sold 542,134 Wranglers during that time frame. Chrysler did issue a Technical Service Bulletin back in 2012 warning drivers of its solid axle vehicles that steering systems needed to be kept in good working condition, but also did not issue any sort of recall.

What kind of gas mileage does a Jeep Wrangler get?

What is the Jeep Wrangler’s average gas mileage? According to the manufacturer, the newest Jeep Wrangler – the JL – gets about 22 MPG in the city and 24 on the highway. This is the rating for the Sport version of the JL. Keep in mind, there are several factors that can affect your gas mileage.

When to use four wheel drive Jeep Wrangler?

When you drive your Jeep in four-wheel drive, you use a serious amount of gas. While the Jeep Wrangler was built for four-wheeling, you shouldn’t be in it all of the time. If you are looking to improve your gas mileage, you should only use four-wheel drive when necessary. The weight of your Jeep affects its gas mileage, too.

What kind of engine does a Jeep Wrangler have?

Choose a Jeep Wrangler with a four-cylinder engine, as well as a manual transmission. Six-cylinder engines and automatic transmissions will prove less fuel efficient in your Jeep Wrangler. A clutch instead of a torque convert has better fuel efficiency. A diesel Jeep Wrangler will also have improved gas mileage.

What can I do to improve gas mileage in my Jeep Wrangler?

Get a tuneup for your Jeep Wrangler. Inflate your tires, change your oil filter and air filter, get an oil change, install new spark plugs and spark plug wires, and add transmission fluid. If any of these components are due to be changed, it can help you get better gas mileage in a Jeep Wrangler.