What causes an engine to idle roughly?

What causes an engine to idle roughly?

Ignition system A misfiring engine, caused by worn/dirty spark plugs, a cracked distributor cap, a defective ignition coil or damaged ignition wires, cannot fully burn all the fuel in the combustion chamber. This will cause your engine to idle roughly.

When did the GMC Terrain start stalling out?

We have seen this stalling problem repeatedly through 2010, 2011 and 2012 GMC Terrain models, with high pressure fuel pumps, spark plugs and water pumps repeatedly replaced.

Are there any problems with the 2015 GMC Terrain?

The contact owns a 2015 GMC Terrain. While driving 30 mph, the vehicle began to hesitate and the check engine warning indicator illuminated. Also, when depressing the accelerator pedal, the vehicle would not exceed more than 20 mph. The contact noticed oil and transmission fluid leaking from the vehicle.

Where can I get a GMC Terrain car repaired?

The vehicle was towed to the local dealer ettleson Buick GMC (6201 south la grange road, hodgkins, IL 60525, (708) 529-5871) where it was diagnosed with needing the pvc valve to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 91,000.

What causes a GMC Terrain to run rough?

When the vehicle is shut off for an extended period of time, it permits fuel to leak past the clogged or defective injector (s) – which floods the engine with raw fuel. When you start the vehicle, it is flooded and running extremely rich – thus the rough running engine.

Are there any problems with the GMC Terrain?

Help? Loading Curious how the 2015 Terrain compares to other years? Check out our GMC Terrain overview to see the most problematic years, worst problems and most recently reported complaints with the Terrain.

What to do if your GMC Terrain is stalling?

Before troubleshooting any automotive issue, including stalling issues with the Terrain, make sure that you check the vehicles trouble codes with an OBD2 scanner. Trouble codes are always a great place to start diagnosing problems on today’s modern computer controlled vehicles. Without them, you are in the dark. These codes are vital to diagnosis.

What should I do if my GMC Terrain starts stuttering?

If you try to backup or drive while the car is stuttering, the engine will sound like it may stall out. After about 10-15 seconds after initially starting up, the car is fine and drives normally. EDIT: 10) I had the High pressure fuel pump replaced under recall.

What was the mileage on a 2015 GMC Terrain?

The manufacturer had been informed of failure. The failure mileage was approximately 46,000. The contact owns a 2015 GMC Terrain. The contact stated while driving at 20 mph, the vehicle stalled without warning. The vehicle was towed to an independent mechanic to be diagnosed.

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