2004 Gmc Envoy Service Engine Soon Light

- September 03, 2018

Steady most of the time but blinks briefly when accelerating. A smoke check was performed and they said it had a leak in the filler neck and the entire gas tank needed to be replaced.

Used 2004 Gmc Envoy Sle Suv In South Windsor Ct Near 06074 1gkdt13s742398298 Auto Com

Gmc Envoy Xl Questions I Have An 04 Gmc Envoy 6 Cylinder

2004 Gmc Envoy Slt Suv Item De8280 5 8 2019

For about 3 weeks my envoy has the service light service soon.

2004 gmc envoy service engine soon light. Today i went out and the light was off. To reset the service engine soon light on a 2004 gmc envoy you can remove the ecu fuse. How to reset the service engine soon light on a 1998 gmc.

I took it to auto zone and they said that was the code that it called for so i replaced it and the light is still on. Service engine soon light on light came on solid a few days ago. The repair that was made was to replace the coolant temperature sensor.

2004 envoy xuv impeccably maintained car was parked in my drive way and i started it to go to the store and it started chugging and then almost died but then went back to normal but the service engine soon and reduced engine power lights illuminated on dash. License are due and i need to run my car for testing. Went driving for about a half hour and it came back on with reduced engine power.

Slide the cable clamp off the negative battery terminal. 2004 gmc envoy my service engine soon light came on. Engine seems to hesitate and idles hard at stops.

And it willl not pass with this light on. Wait 15 minutes then reconnect the cable clamp. Service engine soon light blinkscomes on intermittently.

Did that and the light remains on. How do you reset the service engine soon light on a 2004 gmc envoy. 2004 envoy xuv impeccably maintained car was parked in my drive way and i started it to go to the store and it started chugging and then almost died but then went back to normal but the service engine soon and reduced engine power lights illuminated on dash.

Open the hood of the gmc and loosen the retaining nut on the negative battery cable clamp. At 41000 i had to replace the gas tank to take care of the problem. The light went out but has come back on now.

I took it back. I took the vehicle to a mechanic and the code came back po422. I would like to know how to reset the computer so that the service engine soon light goes off after a repair has been made to the vehicle.

If the check engineservice engine soon light is on when you bring in your envoy there should be no reason for a garage not to able to read a trouble code unless the scan tool is not compatible a dealer better be using a gm compatible scan tool or the diagnostic socket has a problem not allowing the scantool to connect to your envoys computer. Wiki user august 27 2014 121am. I bought a new gmc gas cap.

Owners manual said to check the gas cap and make sure it was tight.