What causes a hard shift in a Jeep Grand Cherokee?

Transmission fluid that is worn out can cause harsh gear shifts and damage the synchros and clutches. Checking your fluid can tell you a whole lot about what is going on inside of the transmission. Here’s a good article on using transmission fluid color to help determine what is going on in the transmission.

Are there transmission problems in the Jeep Grand Cherokee?

As popular as the Grand Cherokee has been in the many years that has been produced, it is not without its faults. In particular, there have been some serious transmission problems in several model years of the Jeep Grand Cherokee. That said, other model years have been excellent.

Why does my Jeep downshift at 1500 rpm?

The revs will then jump up to 12-1500 rpm as if the transmission was downshifting prematurely. Around 50 percent of the time the shift is not noticeable, the rest is a mix somewhat noticeable, to downright alarming. Fluids are fine, all up shifts are smooth as are downshifts under acceleration, and the problem is not temperature related.

When does the 3-2 shift start in a jeep?

The most noticeable is the 3-2 shift which happens around 20mph with the engine around 1000 rpm (under braking, not acceleration.) The revs will then jump up to 12-1500 rpm as if the transmission was downshifting prematurely. Around 50 percent of the time the shift is not noticeable, the rest is a mix somewhat noticeable, to downright alarming.

Is there a problem with my Jeep Grand Cherokee?

Very often, this will solve the problem. But Jeep Grand Cherokees seem especially prone to more serious transmission problems, and some owners are quite vexed at their inability to determine the causes.

Can a Jeep Grand Cherokee Drive in two gears?

You’re often still able to drive the vehicle, but it only operates in one or two gears. For example, you may find that you’re only able to drive the car in the automatic transmission’s third gear, only being able to select the other two gears when you shift the transmission manually.

What do the flashes on a Jeep Cherokee mean?

There will be two sets of flashes, separated by a pause. The number of flashes in each group indicates the first and second digit in the flash codes. A code 55 identifies the end of flash code transmission. Below, you’ll find the list of Transmission Fault Codes for Jeep automatic transmissions.

Are there any problems with the Jeep Grand Cherokee?

290-horsepower 3.6L V6 8-speed shiftable automatic AWD w/low range Firmware update to correct poor upshift timings. Harsh shifting under light or no throttle. Dealer performed software update and also reset the adaptive learning value. The issue still remains. Harsh shifting and occasional hard clunk.

What was the problem with the Jeep transmission?

Under Jeep warranty, a Jeep dealer replaced the original transmission, which had been repaired in April, with a remanufactured transmission, but failed after 2,000 miles for the same problem. Transmission was shifting hard when going from 8 to 7 and 6 gears. Dealer reflashed TCM, performed quicklearn. Issue seems to have gone.

What to do about a Jeep Grand Cherokee transmission problem?

Parts (hopefully) received to complete repair of 4WD actuator/motor issue. Jeep would not go into gear, have to move back and forth to get it in gear. Performed BCM flash per RRT 14-050 18-19-02-P9 Module , body control reprogrammed. A TSB was done for the transmission.

How is the transmission sensor on a Jeep Grand Cherokee held down?

Notice in the picture and in your transmission that the plate holding down the governor pressure solenoid and sensor is held on by only three 7/16 bolts and two Torx screws. This is TOO EASY! Remove the bolts and screws. Place your hand under the SOLENOID so it doesn’t drop and evenly pull down on the holding plate.

How does the gear shifter work on a jeep?

The mushroom-shaped unit does not slide up and down entirely the way a traditional automatic shifter does, but rather can be moved back or forward while changing gears, after which it then returns to center. The shifter has been cited in numerous complaints on the National Highway Traffic Safety Administration’s database.

What happens if your Jeep Grand Cherokee is stuck in Park?

The shift linkage on your Grand Cherokee will usually provide a lifetime of dependable service. But, they can go bad. If you are positive that the gear shifter is not stuck in park (see directly above), then it’s likely that the shift linkage may be bad.

Why does my Jeep Grand Cherokee not shift gears?

For example, you may find that you’re only able to drive the car in the automatic transmission’s third gear, only being able to select the other two gears when you shift the transmission manually. The most common cause of transmission problems is the easiest to fix: check the fluid level in the transmission and restore it to the proper levels.

Can a Jeep Grand Cherokee go into failsafe mode?

You will get U0404 and P0700 codes. The Jeep will not move, hesitate, buck, go into failsafe mode, or drive normal. If it does any of the above, pull over and restart the Jeep. Mine bucked and started to run normal after the lights flashed and the MIL or check engine light went on. Drove it 150 miles no problem. MIL or check engine light stayed on.

Can a Jeep Laredo go forward or reverse?

I am having a bit of a situation. I have a 2002 Jeep Grand Cherokee Laredo. Yesterday it was running forward and reverse with no problems. Well this morning as I do every morning, I started it, let it warm up for about 30 seconds or so, when i shift to reverse, guess what….wont go reverse.

What kind of transmission does a Jeep Laredo have?

I have a 2002 Jeep Grand Cherokee Laredo. Yesterday it was running forward and reverse with no problems. Well this morning as I do every morning, I started it, let it warm up for about 30 seconds or so, when i shift to reverse, guess what….wont go reverse. I have no tranny light on.

How to change the transmission on a Jeep Grand Cherokee?

Pry the transmission pan loose with a flathead screwdriver. Allow the fluid to drain. Remove the remaining bolts, pan and gasket. Clean the gasket surface, with a gasket scraper, to remove all traces of the old gasket and sealant. Drain the fluid from the transmission pan. Clean the pan with solvent. Dry the pan with paper towels or old rags.

How many miles does a Jeep Cherokee take to stall?

Jeep Cherokee XJ’s and Cherokee KJ’s with less than 25,000 miles have experienced stalling problems, but most cases seem to involve vehicles with 75,000 miles or more on them, and it is with particular reference to these older vehicles that the PCM is most relevant.

Why is my Jeep Grand Cherokee engine stalling?

The engine was scanned for trouble codes. There are no trouble codes being reported. This is an extremely dangerous situation, and Chrysler should make this repair at their expense, as it is obviously a manufacturing defect in workmanship or, software or hardware issues.

What kind of transmission does a Jeep Grand Cherokee use?

Transmission choices included a four-speed automatic transmission (early production ZJs used the AW4 – the A500SE (later 42RE) replaced the AW4 during the latter half of the 1993 model year) or an Aisin AX15 manual transmission.

Where was the 2008 Jeep Grand Cherokee Laredo last serviced?

1st owner drove an estimated 10,927 miles/year • 2nd owner drove an estimated 5,415 miles/year • 3rd owner drove an estimated 0 miles/year • 4th owner drove an estimated 0 miles/year • 5th owner drove an estimated 0 miles/year. Last serviced at 125,721 miles in Manhattan, KS on 05/05/21 • Vehicle serviced • Vehicle washed/detailed.

When did Jeep start using The 42RE transmission?

Jeep Grand Cherokee started using the 42RE transmission in 1993 1/2 models with the 4.0L engine. The “4” stands for 4-speed, “2” is for torque capacity, “R” is for rear-wheel drive, and “E” is for electronically controlled.

What’s the Flash code on my Jeep Grand Cherokee?

Code 26 – Governor Pressure Sensor Offset Drift Code 55 – End of Message You may or may not be skilled enough to actually fix the problems indicated by the flash codes yourself, but you’re better-armed with an understanding of where the issues lay as you seek help from a mechanic.

When does a Jeep Cherokee downshift from 3-2 to 2-1?

The problem occurs when either coasting to a stop or braking coming to a stop. The transmission will downshift hard from 3-2 and sometimes 2-1 causing a small jerking of the jeep and occasionally a light clunk. The most noticeable is the 3-2 shift which happens around 20mph with the engine around 1000 rpm (under braking, not acceleration.)

What happens when transmission fluid is low in a Jeep Grand Cherokee?

Over time, your Jeep Grand Cherokee ‘s Transmission fluid can get low. By the time you are experiencing the symptoms of low transmission fluid, damage is already being done. Your Grand Cherokee’s transmission fluid is responsible for powering, lubricating, and cooling the transmission.

What kind of transmission does a Jeep Cherokee have?

Its a 3.2L FWD with Trailer Tow package. Just hit 82,000km. Just being cautious with this new design automatic and trying to extend the life of it.

When to change transmission fluid on Jeep ZF9?

Changing the ZF9 at 10 years/100,000 miles would be prudent. Other than that I would just follow the maintenance schedule. Also keeping an eye on the coolant would be prudent. Any change like dirty/cloudy I’d probably change early also. The discussion on brakes, specifically brake fluid change is another hot topic.

Its a 3.2L FWD with Trailer Tow package. Just hit 82,000km. Just being cautious with this new design automatic and trying to extend the life of it.

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