Question about 2004 GMC Envoy

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I have a 2004 GMC Envoy with 99326 miles and the service engine soon light is on. Is it time to service my car for a tune up and what is invloved in a tune up and what would be my estimated cost?

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The best thing to do is to take it to a shop with a diagnostic machine and have the run it on it. That way you will find out exactly what is wrong.And its time for a major tune up at 100,000 miles any way.

Posted on Nov 08, 2010

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My service engine soon light came on the instrument panel on my 2004 GMC ENVOY


You need to go to a auto parts store like Autozone, they will read the fault codes for free and provide you with a printout of the reason for the check engine light being on.

Jun 12, 2011 | 2004 GMC Envoy

1 Answer

My envoy the check four wheel drive dont engage but when it does it wont run right it well only go twenty miles and hour


CHECK FOR THE MOBIL OIL AND radiator colling system are they jamed give a clean service and check for the oil filter , if the heat is controlled then tune your engine to the local machanic or service center
i hope this fix your problem

Mar 29, 2011 | 2004 GMC Envoy

1 Answer

I have a 2004 GMC Envoy with 82400 miles. My service engine soon light continuously stays on. I have had it in the shop numerous times and they have run diagnostics. I have had a tune up done, 2 sensors...


You need to let us know what the fault code(s) is. Did anyone ever give this information when they were working on the vehicle? There are many reasons for the check engine light to be turned on.

Nov 06, 2010 | 2004 GMC Envoy

2 Answers

I have a service engine soon light and the code that appeared when check is 1481, do you know what this means?


Service Engine Soon (SES) or Check Engine Light On, DTC P0480, P0526/P1481/P1484 Set (Replace Engine Cooling Fan Wiring Harness) #05-06-02-012B - (10/19/2006)

Models:2004-2006 Buick Rainier
2002-2006 Chevrolet TrailBlazer, TrailBlazer EXT
2002-2006 GMC Envoy, Envoy XL, 

Some customers may comment that the Service Engine Soon (SES) or Check Engine light is illuminated. This condition may be intermittent and upon investigation, the technician may find either DTC P0480, P0526, P1481 or P1484 set.

This condition may be caused by the cooling fan harness chaffing against the plastic guide it routes through. This contact may damage the insulation of the wires enclosed in that harness.

Replace the wire harness: 
Part Number 89024920 Description Harness Assembly, Engine Cooling Fan Wiring

Good luck and keep me posed. 

Aug 11, 2009 | 2003 GMC Envoy

1 Answer

Service engine light keeps coming on


need to scan for codes and find problem code some part stores do for free

Jul 06, 2009 | 2004 GMC Envoy

1 Answer

2004 Hummer 54k miles


Service the car and let ther service light be reset.

Jul 04, 2009 | 2004 GMC Envoy

1 Answer

ENVOY 2004, Engine going off when i am making AC ON. Service Engine soon light is on.


I did the Engine Service, cleaing of Air Control section of the Engine. I did it at our city's "Specialized Maintainance Service Center" for GMC Cars.

Thanks,

Safara

May 12, 2009 | 2004 GMC Envoy

1 Answer

I backed the 2004 envoy into my driveway and the engine killed and the reduced engine power light came on along with service engine light also. Restarted the engine and had no throttle while in park...


You need to check the fuel injection system, throttle body, sensors, check harness for ground. Best solution is to have your engine scanned using Tech 2 scanner. The mechanic will advice you based on the scan code. Whenever the "service engine soon " light the computer system logs the error code. You can retrieve this error code using a scanner.

Apr 28, 2009 | 2003 GMC Envoy

2 Answers

Coolant Temp Sensor


The sensor is located on the drivers side engine block...although you can see if from looking from the top of the engine, you would have to get under the vehicle and look up to replace it. Be aware that it takes a special tool to unscrew the old one and screw in the replacement.


Aug 06, 2008 | 2004 GMC Envoy

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