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2005 gmc envoy put into drive and than idles rough, ok in reverse & neutral

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
  • 76649 Answers

SOURCE: ROugh idle

there are 2 things that usually cause this, one is a dirty intake idle control valve and the other is hard engine mounts, I would say that both most likely apply to your car. try cleaning the intake with the following procedure from Ford.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Feb 18, 2009

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  • 106 Answers

SOURCE: 2001 Pontiac Grand Am Rough Idle In Drive Only

has it had a tune up?

Posted on Mar 24, 2009

  • 217 Answers

SOURCE: Rough idle

sound slike you may have unplugged or disconnected somethine else or the spark plug you put in is bad or inpropper gap

Posted on Sep 09, 2009

miket756
  • 2702 Answers

SOURCE: Ford Taurus: rough idle in drive and reverse

it could be that the tick over is two slow in brive,,,
set it up to tickover at 850,,950 rpm (in drive)
or it could be a gear box fult like the drive plate has a crack in it,,,letting the torque converter slap about,,,
chech tick over first,,, bont adjust tick over in gear unless the brakes are held hard on,,,

Posted on Oct 31, 2009

01fordeb
  • 1033 Answers

SOURCE: vibration when idling in drive

check your pulley's. Sounds like one of them are bad and causing movement which where the vibrations coming from. A friend of mine had the same problem, his was the fan pulley. It could be moved inward and outward a little but enough to cause the engine to vibrate. The bearings were going out. check it out and let us know what you come up with.

Posted on Jan 27, 2010

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1 Answer

I have a 2006 GMC Envoy, idles rough at a stop when in gear, but levels out smooth when in neutral. Drives smooth on the highway.


check for a vacuum leak in the brake booster. Check this by just allowing the engine to idle with the hand brake on and if ok then put your foot on the brake and if the idle changes then there is an air leak in the booster.

Jul 27, 2014 | Cars & Trucks

1 Answer

Sputtering and rough idle


you may also want to check the idle air control and the mass air control sensor, if not working properly they can cause both symptoms

Apr 07, 2014 | 2005 GMC Envoy

1 Answer

Having problems with the timing on da engine. The envoy will start for a bit. It will run in neutral or park, but when put in drive or reverse. It stalls or runs really rough. We checked the fuel pump and...


While in idle, turn on your rear defroster or any other electrical component. The engine should increase when doing so if it doesn't replace your IAC...it is located on the throttle body.

Mar 26, 2011 | 2004 GMC Envoy

1 Answer

My reverse wont reverse anymore. when i put it on reverse it's neutral but when i put it on neutral it drives. whats going on i need help?


Sounds like the cable has shifted, from the gear lever to the transmission there is a cable that puts the transmission in the correct gear. this cable is adjustable where it bolts onto the transmission and has probably moved

Feb 21, 2011 | 2006 GMC Envoy

1 Answer

I am having GMC ENVOY model 2004,I was driving at 120km/hrs on way to my office suddenly my vehicle slow down when I try to race but I could not then slow down to the side & stop the vehicle when...


The 2004 Envoy has a problem with the transmission failing. It could be an electronics problem, but it sounds as though there is no pressure in the transmisssion, perhaps a bad pump.

Jan 30, 2011 | 2004 GMC Envoy

1 Answer

04 Envoy won't go into reverse. When put in reverse just sits there. When put into neutral starts to roll forward as if in gear. It drives in neutral as well as the other gears.


The linkage from the selector in the car to the selector on the transmission needs to be checked. This is a physical problem and inspection should reveal what needs to be easily adjusted or straightened out to fix it.

Sep 02, 2010 | 2004 GMC Envoy

2 Answers

Rough idle


sound slike you may have unplugged or disconnected somethine else or the spark plug you put in is bad or inpropper gap

Sep 03, 2009 | 2002 GMC Envoy

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