Question about 2006 GMC Envoy

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Engine revs realy loud

When ever i start my 05 gmc envoy after its been off for more than two to three hours it revs up realy loud for about 20 seconds

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You have a faulty thermostatically controlled fan clutch. Same thing happened to mine. As soon as you start the car, the fan is always turning, and the speed increases as the RPM is increased.

Posted on Oct 25, 2008

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2 Answers

05 gmc envoy denali car was running replaced old batt now car wont start


Hey Stephen,,does the car turn over or is it completely dead?

If the engine, lights, horn don't work it your new battery.
Test or have tested, your new batteries charge and its performance
under load.

If the battery is okay and all the connections are tight and secure
and still no start..provide some more info on the no start vs no crank
question. Does the engine turn over?

Your owners manual might also provide some notes on changing the battery.

May 04, 2016 | 2005 GMC Envoy Xl

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I am a woman learning to fix my 2002 GMC Envoy and it is knocking and the oil disappeared. I had an oil change about 2 months ago.


Could need an engine rebuild you cannot drive without oil and not do damage to the bearings.

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How do i reset security system on an 05 gmc envoy


Try using the door key to lock and unlock the drivers door.

May 30, 2014 | 2005 GMC Envoy

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Engine revs hi when you start driving is this the clutch fan


A fan clutch can be a little noisy especially when you are accelerating, but it cannot make your engine rev high.

Aug 11, 2011 | 2004 GMC Envoy

1 Answer

2006 GMC Envoy has 2 problems. I thought the alternator was going bad because of some battery problems. Pulled it out and had it tested. Nothing wrong with it. The biggest problem is a loud whine when...


The whine could be a pulley, start the engine, raise the hood, and then rev the engine to see if you can duplicate the noise. It could be a weak belt, or a bad bearing in either the alternator, or a pulley when the engine is under a load. Check your fuel lines and the schrader valve on the fuel rail to ensure they are good, and stop the leak. Usually a fuel leak on an engine will dissipate to quickly and you can never find it, so be thankful that you did.

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1 Answer

2005 GMC Envoy. Wining sound from under the car at startup.


Hello,
I suggest checking your starter motor. If the starter motor is staying engaged it could be a bad solenoid or a bad ignition switch.

I hope this helps.

Roy

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1 Answer

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your fuel pressure regulator is bad, replace it!!!

Aug 15, 2009 | 2005 GMC Envoy

1 Answer

I have a 2003 GMC Envoy, when it is in drive, and the gas is pressed the engine revs really loud. Help!


sounds like clutch fan its electronic try unplugging then drive. they are normally loud but this might help with whats making noise.

Jan 03, 2009 | 2004 GMC Envoy

2 Answers

Loud air sound


If there is an engine code po410 you have problems with your airpump. There are bulletins out on this situation.

Oct 16, 2008 | 2004 GMC Envoy

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