Why does my Mitsubishi Galant engine surge at idle?

Why does my Mitsubishi Galant engine surge at idle?

Car runs fine once she is going but at idle the engine seems to surge/buck forward when idling at a stop sign or red light.

How can I tell if my Mitsubishi Galant is working?

Mitsubishi Mechanic: Doug, ASE Certified Technician replied 8 years ago There aren’t any real easy ways to identify 100% however you can get a good idea with a few checks. Open the hood and start the engine. Watch the edge of the hood to note the vibration. Place the shifter into Drive and watch the change in the vibration.

What’s the idle rate on a Mitsubishi 2.4?

After a minute I put the battery terminal back on and started the car with the IAC/ISC unplugged, the car Idled back up to 1800rpm. I shut off the car plugged the IAC/ISC back in and started the car. This time it stared and idled around 400-500rpm. I backed the screw out until the idle was around 800rpm per my scan tool.

What does p0135 mean on a Mitsubishi Galant?

P0135 is indicating an electrical fault in the front O2 sensor heater. It is not indicating any problem with the sensors ability to function as needed, only that the heater circuit inside (that brings it up to operating temperature faster for emissions reasons) is failed.

When does the engine shake in a Mitsubishi Galant?

At first it went away near 1500 rpms I had a very rough idle (engine shaking) at idle and as soon as I put it in gear. At first it went away near 1500 – Answered by a verified Mitsubishi Mechanic We use cookies to give you the best possible experience on our website.

Is the idle on a Mitsubishi Galant 2.4L?

My brother has a 2000 Mitsubishi Galant with a 2.4L. The previous owner adjusted the idle. I am aware that it is not suppose to be adjusted. It is throwing a P0505 code now and idles around 1000 and 500 with ac on.

After a minute I put the battery terminal back on and started the car with the IAC/ISC unplugged, the car Idled back up to 1800rpm. I shut off the car plugged the IAC/ISC back in and started the car. This time it stared and idled around 400-500rpm. I backed the screw out until the idle was around 800rpm per my scan tool.

How to disconnect the cable on a Mitsubishi Galant?

Mitsubishi Mechanic: Doug, ASE Certified Technician replied 8 years ago You can disconnect the cable by rotating the throttle all the way open, the sliding the cable out the side of the spool….. don’t worry about that now though. That would only be helpful if you felt a snag so that we could tell if it was in throttle/linkage or the cable.

What is the diagnostic code for a Mitsubishi check engine?

Refer to our Generic OBD II code list for definitions on all other Mitsubishi diagnostic trouble codes. Manufacturer Specific Codes P1100Induction Control Motor Position Sensor Fault P1101Traction Control Vacuum Solenoid Circuit Fault – Read Our Article On Automotive Circuit TestingFor Help With This Mitsubishi Check Engine Light Code

Where can I find the Check Engine light codes?

This tells you where to start testing. If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left. Next, read our article Automotive Circuit Testing 101, and if there is an article related to the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well.

Why is my Check Engine light flashing and car shaking?

If your car’s control system discovers problems that it cannot handle, the check engine light will turn on. In addition, the computer will have a trouble code stored in the memory. The code’s main function is to determine the origin of the problem. To read the code, you will need a diagnostic computer or an electronic scan tool.

What does a check engine light mean on a 2002 Mitsubishi Galant?

We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car. A check engine light can indicate a broad spectrum of problems with your 2002 Mitsubishi Galant.

When to check the Check Engine light on a Galant?

Steady Check Engine Light: If your check engine light is on every time you operate your Galant, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises.

What to do if your check engine light is on?

The video above shows how to locate the on board diagnostics (OBD) plug on your 2002 Galant, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Galant.

If your car’s control system discovers problems that it cannot handle, the check engine light will turn on. In addition, the computer will have a trouble code stored in the memory. The code’s main function is to determine the origin of the problem. To read the code, you will need a diagnostic computer or an electronic scan tool.

How does the throttle work on a Galant?

So after removing the throttle body from the aluminium air manifold on top of the motor made up a new gasket from paper and used a liquid gasket in conjunction with the paper gasket to seal it. On the throttle body there is a metal plate held on with two screws.

Why does my bolth cylinder smoke at idle?

The compression in bolth cylinders was 50 psi and that was after a wet test. The reason it didnt smoke while driving was becuase the pressure inside the cylenders was greater then the water pressure at higher rpms but when at an idle my god did it smoke.

Is it normal to see Blue Smoke at idle?

Blue smoke would mean there is a problem, it’s normal to see a little whitish / gray smoke at idle on cold days. my car used to smoke only at idle.

Why does my Mitsubishi Galant shake at idle?

I had a very rough idle (engine shaking) at idle and as soon as I put it in gear. At first it went away near 1500 rpms then day 2 it didn’t come out of it until about 40 miles per hour. I cleaned the throttle body and iac valve and the maf. All were very clean.

Mitsubishi Mechanic: Doug, ASE Certified Technician replied 8 years ago There aren’t any real easy ways to identify 100% however you can get a good idea with a few checks. Open the hood and start the engine. Watch the edge of the hood to note the vibration. Place the shifter into Drive and watch the change in the vibration.

The compression in bolth cylinders was 50 psi and that was after a wet test. The reason it didnt smoke while driving was becuase the pressure inside the cylenders was greater then the water pressure at higher rpms but when at an idle my god did it smoke.

Blue smoke would mean there is a problem, it’s normal to see a little whitish / gray smoke at idle on cold days. my car used to smoke only at idle.

How many units of the Mitsubishi Galant have been sold?

Mitsubishi Galant. Galant was a family car made by Mitsubishi during a production period that spanned over five decades. During this long run, it ended up with over 5 million sold units.

What kind of engine does a Mitsubishi Galant have?

When mentioning World Rally Championship or motor-sport, most people will remember the Lancer Evo, which made Mitsubishi popular in this segment. However, only few know that Galant was the first car used for this purpose. Strict regulations called for a production car with a turbocharged four-cylinder engine and permanent all-wheel-drive system.

Why does my Mitsubishi Starion have engine hesitation?

As another example, I still have a 1987 Mitsubishi Starion, which ran perfectly for 35,000 miles. Then it developed an intermittent hesitation problem- you would be cruising at 60mph, on a 400 mile trip, ease off the gas pedal, and suddenly for 1/4 second, it was as though someone had switched off the engine and then turned it back on again.

Why is my HT lead not working on my Triton?

The HT Lead was not fixed in the spark plug tube and was being pushed up inside the tube not clicking onto the spark plug.

How to solve engine hesitation and stumble problems?

One way is to divide the problem into 2 parts- one which involves locating “conventional ” faults and the other deals with the computer controlled aspects. Conventional fault tracing involve basic checks such as vacuum leaks, bad fuel, wiring faults, and worn or fouled spark plugs, loose alternator belt or faulty alternator.

Car runs fine once she is going but at idle the engine seems to surge/buck forward when idling at a stop sign or red light.

How to fix Mitsubishi Legnum rough idle problem?

This feature is not available right now. Please try again later. Cleaning the throttle body, idle air control valve and mass air flow sensor. Rough idle on start up, splattering for a few seconds and then idles as it should, these are the symptoms I had. After doing what I did in the video the car starts straight away. Loading…

P0135 is indicating an electrical fault in the front O2 sensor heater. It is not indicating any problem with the sensors ability to function as needed, only that the heater circuit inside (that brings it up to operating temperature faster for emissions reasons) is failed.

What should I do if my Mitsubishi Galant stall?

The engine may develop a low idle or stalling condition due to a failed idle air control valve. Our technicians tell us the replacement of the faulty valve is required to correct this condition. The average cost for a Mitsubishi Galant General Diagnosis is between $88 -$111.

Why is my car stalling at low idle?

The engine may develop a low idle or stalling condition due to a failed idle air control valve. Our technicians tell us the replacement of the faulty valve is required to correct this condition.

Who is the mechanic for the Mitsubishi Galant?

5/18/2013 Mitsubishi Mechanic: Doug, ASE Certified Technician replied 8 years ago Doug, ASE Certified Technician Category: Mitsubishi Satisfied Customers:7,006 Experience: Mitsubishi employed and Factory trained ASE certified technician Verified Hi,The P0135 will notcause this issue.

What causes rough idle and cold start Mitsubishi?

Fixed Rough Idle and Cold Start Mitsubishi – YouTube Found out it was fuel pressure loss that caused the long cranks after sitting and odd idling. Didnt cost anything to fix! Found out it was fuel pressure loss that caused the long cranks after sitting and odd idling. Didnt cost anything to fix! Skip navigation Sign in Search Loading… Close

So after removing the throttle body from the aluminium air manifold on top of the motor made up a new gasket from paper and used a liquid gasket in conjunction with the paper gasket to seal it. On the throttle body there is a metal plate held on with two screws.

What are the symptoms of an idle air control valve?

One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate.

Can a bad idle control valve cause stalling?

3. Engine stalling The idle control valve, also commonly referred to as the idle air control valve, is an engine management component that is found in one form or another on the majority of road going vehicles.

What causes the idle speed to go up or down?

The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on

What are the symptoms of a bad idle control valve?

$0.00 1 Irregular idle speed One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. 2 Check Engine Light comes on Another symptom of a potential issue with the idle control valve is an illuminated Check Engine Light. 3 Engine stalling

The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on

What are the symptoms of a bad throttle temp sensor?

Symptoms of a Bad or Failing Throttle Body Temp Sensor Common signs include poor engine performance, stalling, and broken electrical connections. A common problem that car owners experience is high or low engine idle. A damaged intake gasket, cold air intake, or PCV valve can cause idle issues.