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GMC Envoy Maintenance and Repairs

95 messages,  Last post on Nov 15, 2009 at 7:14 PM

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What is this discussion about? GMC Envoy XUV, GMC Envoy XL, SUV

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#63 of 95 sensor location by 91ump Jul 02, 2008 (8:08 am)
i have a 05 envoy. the check engine light came on and i got it checked out. it is the camshaft position sensor. i was wondering if anyone knows where this is located and if anyone has done this replacement? Replies to this message: prostocknova (Jul 16, 2008 12:22 pm)
#64 of 95 4-wheel drive problem by joni0381 Jul 03, 2008 (7:45 pm)
I purchased a 2005 XLT Envoy 2 months ago today. The 1st month the dealership had it 3 out of 4 weeks trying to fix the problems I was having. 1st it was the cluster for the speedometer went out. Twice actually. But that wasn't the main concern. While driving down the road the 4-wheel drive switch will show the vehicle shifting into 4-all wheel from 2HI, and then back to 2HI. You can also feel the vehicle jerk as it is switching over. But, the service department can not seem to find the problem. They have ran the diagnostic test on it several times. I have even tried a different dealership hoping that they could figure out the problem. No one wants to start dumping money into the vehicle to fix the problem since it is still under warranty with the dealership. Has anyone had anything like this happen with theirs???? Replies to this message: kingpin814 (Jul 16, 2008 11:05 am)
#66 of 95 Re: 4-wheel drive problem [joni0381] by kingpin814 Jul 16, 2008 (11:05 am)
Replying to: joni0381 (Jul 03, 2008 7:45 pm) I have the same problem with my 2002 Envoy XLT. Would be very interested to find out if you have solved the problem. Nobody can figure this out either. Get back to me if you can.
#67 of 95 Re: sensor location [91ump] by prostocknova Jul 16, 2008 (12:22 pm)
Replying to: 91ump (Jul 02, 2008 8:08 am) Yes i had this same issue my check engine light came on for my 04 GMC Envoy and it was throwing codes for the cam and crank sensor ,i just cleaned them and they worked fine, you can also purchase them at Oreilly Auto parts(Or some other select Parts Houses) they can get them at a great price ,way better than the Dealership. The camshaft Position sensor (CMP) Is located on the front of head, directly above the belt. Small bolt holds it in, and it is a round sensor.Also the camshaft position sensor code may have set because of the low oil pressure to the variable timing system from low oil in the motor. i would start by first clearing all the codes from the system and see if the light comes back on. if the light does come back on, before replacing the cam sensor you will need to follow a diagnostic repair procedure for the code you get. just because the code says cam sensor does not mean that replacing the sensor will fix the problem. you may have electrical or mechanical problem that is causing the ECM to think there is a problem with the cam sensor. Hope This Helps   Alisha
#68 of 95 "Rear Wiper Obstruction" mesg and tailgate window wont close by tman70043 Oct 01, 2008 (1:27 pm)
The tailgate window came out of the clamps that hold it to the tailgate window regulator. We opened the rear glass from the control panel and the regulator went down but glass stayed up. I slid the glass down and could tell it wasnt clamped in. After manually sliding the glass down I felt it hit the regulator clamps. I then attemped to raise the rear window from control panel and it didnt make a sound or budge. The dash display said "Rear Wiper Obstruction". I've already opened the tailgate and put the glass back into the clamps that hold it in place. That didnt solve issue. Moved the wiper arm around a lil to possibly activate the sensor, that didnt work. I've tried turning on the wiper but it complains that the "Rear Window is Open". The roof will open, since the window is stuck open. I've looked for a new reaar gate module(the computer card that is in the black box screwed into the plate on tailgate) but cant find it anywhere. Can someone tell me if there is a trick to getting this to work? Replace the window regulator? Replace the rear gate module? Replace Wiper? I cant seem to find the "sensors" to see if I could just replace that.
#69 of 95 dash lights going crazy by jul6364 Oct 28, 2008 (4:36 pm)
I have a 2004 Envoy that occasionally while driving it, the air bag, seatbelt, service 4 wheel drive, all the possible warning lights, flash on and off. The gauges also bottom out, the battery, fuel, oil etc. But then the gauges go back to normal. However the warning lights still flash on and off. I took it to 2 dealers who diagnosed the problem to be the ignition switch and they replaced it. However, after picking it up from the dealer today, the Envoy seems to be still flashing the warning lights on and off again. Could this be a wiring problem under the dash? Our Envoy has only 41,000 miles on it and I don't understand what could be going on. Can anyone help or has something like this happened to you? Replies to this message: kenc7 (Apr 04, 2009 11:55 am)
#70 of 95 NO HVAC by hubcap31 Oct 31, 2008 (2:40 pm)
I HAVE A 2004. I CHANGED THE BATTERY NOW I HAVE NO HVAC. NO FAN, NO DEFROST, NO AIR, NO HEAT. I ASSUMED IT WAS A FUSE...NOPE. Replies to this message: tidester (Jan 27, 2009 4:49 pm)
#71 of 95 Re: XUV roof and rear window problems [mandeville] by jilssk9s Jan 27, 2009 (4:35 pm)
Replying to: mandeville (Jun 26, 2007 1:59 pm) Jlm, I've been having the exact same problem as you (rear window not working with the clear obstruction message on dash). Did you ever have the problem fixed or solved? ThanksJill Replies to this message: tman70043 (Jan 27, 2009 5:53 pm) tman70043 (Oct 21, 2009 9:41 am)
#72 of 95 Re: NO HVAC [hubcap31] by tidester HOST Jan 27, 2009 (4:49 pm)
Replying to: hubcap31 (Oct 31, 2008 2:40 pm) Is it possible the battery was connected with reversed polarity?   tidester, host SUVs and Smart Shopper

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