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Chevy Colorado and GMC Canyon Engine Problems

399 messages,  Last post on Nov 24, 2009 at 7:18 PM

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What is this discussion about? Chevrolet Colorado, GMC Canyon, Engine, Truck


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#362 of 399
Re: GMC Canyon Engine Tapping [myrtlecanyon] by falcon19
Jul 14, 2009 (5:53 pm)
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Replying to: myrtlecanyon (Jul 08, 2009 2:30 pm)

Call GM HQ ASAP. In my last (and only) post on this forum, I asked if anybody knew when the cutoff date for the valve cover problem warranty for 06 models ended. I have the late 06 model with only 22K but am worried that sooner or later I will be stuck with the $3000 repair bill.
 
No replies yet. Looks like you may already be haveing the problem. Heavier oil is not a fix for anything.
#363 of 399
Re: GMC Canyon Engine Tapping [falcon19] by falcon19
Jul 30, 2009 (6:00 pm)
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Replying to: falcon19 (Jul 14, 2009 5:53 pm)

Anybody out there?
#364 of 399
Re: GMC Canyon Engine Tapping [falcon19] by leadfoot4
Jul 31, 2009 (4:07 am)
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Replying to: falcon19 (Jul 14, 2009 5:53 pm)

"Falcon", you seem to be a little confused with your "problems". To the best of my knowledge, I've never heard of any "valve cover" issues. There have been, however, "valve seat" issues with the '04-'07 Canyon/Colorado I-5 engines. GM issued a letter to the owners of the "potentially effected" vehicles.
 
This letter, essentially stated that the engines on these vehicles were given an extended warranty for 7yrs/100,000 miles. Yes, if your engine is making new, and/or strange noises, you should have it looked at by the dealer ASAP. If it is indeed a cylinder head issue, the repair, if paid out of pocket", would be near $3000, parts and labor.
 
However, you said "valve cover"....I doubt a valve cover repair/replacement would cost $3000.
 
FWIW, my Canyon is now 4.5 years old, with 27,000 miles. Presently, it's running like a champ. IF, and I repeat IF, the head is one of the bad ones, I hope it craps out soon. I don't want to have to shell out the $$ myself, if if goes bad after the 7 year warranty is up...assming GM is still in business and honoring "old" waranties!!
#365 of 399
Re: Chevy Colorado/GMC Canyon: Engine Problems [weezy3] by lift4041
Jul 31, 2009 (6:19 am)
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Replying to: weezy3 (Jun 11, 2009 8:35 am)

I have a 2004 Colorado with 58,000 miles on it. It runs very well, yet it clatters terribly at idle and when i throttle up. I have not had my check engine light come on at all since the last time i brought it to the dealer. The last time it had a miss, and the light came on. But now there is no light and plenty of clattering. Some one said that possibly the timing chain is out of adjustment, but i can't seem to find out even if there is an adjustment. I thought there was only guides in there with no adjustments. Is the clattering the valve seats or could it be the timing chain. Also does the check engine light need to be on in order for the dealer to check it out for the extended warrantee issue.
#366 of 399
Re: GMC Canyon Engine Tapping [leadfoot4] by falcon19
Jul 31, 2009 (9:25 pm)
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Replying to: leadfoot4 (Jul 31, 2009 4:07 am)

Sorry, I meant cyl head problem. Mine is a 2006 model I baught in early 2007 and now has 23K. I have received no "letter" from Chevy on this problem. My worry is that the 3 year warranty will run out before I get an official notice on the extension.
 
Last time I called them I could not pin them down on this. I'll try calling them again and post their answer.
 
Thanks
#367 of 399
Re: GMC Canyon Engine Tapping [falcon19] by falcon19
Aug 05, 2009 (11:36 am)
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Replying to: falcon19 (Jul 31, 2009 9:25 pm)

Hello,
 
I found "The Letter".
I had received it in November 2008 and my wife had filed it away without telling me. It says that in "some" 2006 Colorados "engine valve seats may wear."
 
A tipoff that this is happening is that the Service Engine Soon (SES) may come on and "additional wear may lead to engine idle roughness."
 
Anyhow, the letter is a notification that the warranty for this problem is now 7 years or 100,000 miles from the date of purchase. Good news!
 
Here is a phone number contained in the letter for any questions regarding this: 1-800-630-2438.
 
Hope this is helpful,
 
Joe
#368 of 399
05 Colorado Engine Start-up Problems by stringpuller
Aug 07, 2009 (2:52 pm)
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I've been experiencing engine and various electronic issues with my 05 Colorado from DAY 1 such as: rough starting (shuddering) and running, no starting, 4WD and emergency flashers inadvertantly engaging, trailer lights (loom wiring) not functioning, headlamps out, ABS sensor fault, seal issues -- blah blah. The list goes on.
 
3 different parts were changed on three different occasions for the 4WD issue, and a throttle body assembly and injector feed wire were replaced for the starting issues.
 
I currently have 81K on the truck and I'm now experiencing unpredictable, infrequent start-up problems (again) ever since I ran my fuel down to a LOW FUEL WARNING level.
 
It's crazy. I can run for several days, then boom -- no start. It will crank with no engine turnover. In each instance, the engine will eventually turnover after a few tries and then turning the ignition switch on after having let it sit for several minutes. A mechanic had advised pounding on the fuel tank on one occasion which seemed to get immediate results, although I wasn't sure if it was because of sitting idle after repeated cranking. There have also been other instances when tank rapping hasn't worked.
 
I've had two different GM mechanics and a veteran GM exec acknowledge fuel pump issues with their products although I'm not so sure after reading some message postings on the Edmunds forum. One guy said it could be an electrical contact issue with the pump, a hot spot that will react irregularly when the engine is hot, cold, idle for awhile, etc. etc. -- blah, blah. He said the newer fule pumps will slowly fail as opposed to outright failure common to past defections.
 
I've had two guys check it for codes and there are none. I've put a fuel pressure gauge on the valve and get 53 -55 lbs of pressure when the non-start gremlin magically appears. It seems likely that the pump is functioning properly with that amount of pressure even during the no-start condition.
 
I don't want to drop 3 bills for a pump and find out it's not the problem. It will be more if I take it to a dealer.
 
PLEASE HELP!!! Can anybody offer"> a suggestion -- other than a flare?
#369 of 399
Re: 05 Colorado Engine Start-up Problems [stringpuller] by mxr822
Sep 01, 2009 (1:25 pm)
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Replying to: stringpuller (Aug 07, 2009 2:52 pm)

Same exact problem took it to the dealer thay had it for 5 days and no problem i get it back does the same thing. HEEELLLLLLPPPP!
#370 of 399
Re: 05 Colorado Engine Start-up Problems [mxr822] by stringpuller
Sep 02, 2009 (7:44 am)
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Replying to: mxr822 (Sep 01, 2009 1:25 pm)

My truck was recently at the dealer and they couldn't replicate the start-up failure symptoms or find anything wrong after 5 days of variable testing, i.e., hot/cold, and repeated sequence starting. They checked for possible spark and fuel issues and found no codes or fuel pressure related problems.
 
The truck failed to start at least 12X over a period of 7 weeks prior to taking it to the dealer. Since then, it hasn't failed to start in nearly two weeks, although it has rough started a couple times.
 
The dealer advised me to observe whether the theft deterrent light flashes the next time the vehicle fails to start.
 
I believe there might be an intermittent electrical issue associated with starting failure.
 
Still seeking any helpful insight from knowledgeable gear-heads on the forum.
#371 of 399
Re: 05 Colorado Engine Start-up Problems [stringpuller] by rislone
Sep 03, 2009 (1:05 pm)
Reply

Replying to: stringpuller (Sep 02, 2009 7:44 am)

I had the same problem. The thief deterent system activaed and locked out my ignition system. I was told to turn off the car, wait 20 minutes and retry. It took 2 Hours of repeated efforts but if finally started. I drove it to the dealer and they had to replace a "Huge" module under the dashboard. I can't remember what they called it. But it was a good 20-22 inches long and had to be special ordered. Ever since then everything has been fine. Thank God it was covered under warranty.
Wish I could be of more help. But describe the module to the dealer and see if they can run a check. It is and intermediate problem so they will have to keep the vehicle for a few days to spot it.
Good luck

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