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Chevy Colorado and GMC Canyon Engine Problems

389 messages,  Last post on Nov 10, 2009 at 8:32 PM

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#349 of 389 my 2006 colorado fixer by bearsrnum1 Apr 26, 2009 (4:47 pm)
The problem with my truck was that the crank sensor was bad. After it got replaced everything good.
#350 of 389 Engine electrical component failures by russ95 Jun 08, 2009 (8:00 am)
Hi,  I have an '04 Canyon 2wd 5cyl 5mt with 112,000 miles. I have come to realize that most of the electrical issues with these trucks such as coils, blower resistors & blowers, switches, sensors, door electrical problems, lighting problems, idle speed, check engine, and some no start issues can all be caused by the high amperage flows that are created by low system voltages.  There seems to be (my opinion) two main causes. First is the marginal capacity Delco battery. If you are willing to eliminate the battery enclosure a much larger 850cca group 65 battery (Costco $80.) will fit in the stock retainer system. If you don't idle for long periods with the blower on high or other unusual high electrical demand (at idle) a battery upgrade may be all that is required. If that isn't enough you could consider changing from the stock 100amp alternator to the upgraded 125amp alternator used on the 08-09 4&5cyl trucks which seems to have resolved all these problems. Remember that no alternator will provide much output at idle speed. Good Luck, Russ
#351 of 389 head problem way out of warranty by rtroy66 Jun 10, 2009 (10:45 am)
I was in arkansas visiting family when my engine light came on this last saturday, June 06 and so I took it in on Monday the 8th and they told me that the problem was the engine was loosing compressing due to faulty seat. Well I travel a lot and at 150,000 miles they told me it was going to cost 2200 dollars to fix it. Couldn't I just put a new engine in the truck for a little bit more. I don't know, but I think this should have been covered in the recall regardless of mileage. Replies to this message: dmathews3 (Jun 10, 2009 11:44 am) russ95 (Jun 10, 2009 12:16 pm) dmathews3 (Jun 10, 2009 1:21 pm) russ95 (Jun 10, 2009 2:17 pm)
#352 of 389 Re: head problem way out of warranty [rtroy66] by dmathews3 Jun 10, 2009 (11:44 am)
Replying to: rtroy66 (Jun 10, 2009 10:45 am) Come on, there is no company in the world that is going to cover something forever. 150K on the truck, you got more than your money out of it, buck up and either pay the man or find a junkyard engine and replace it or sell it and move on. Oh, if you find a car company that really, really warrentees a gas engine for that long, let me know and I'll put that company at the top of my list when it comes time for a new vehicle.
#353 of 389 Re: head problem way out of warranty [rtroy66] by russ95 Jun 10, 2009 (12:16 pm)
Replying to: rtroy66 (Jun 10, 2009 10:45 am) Hi,  I believe you would be best off buying and installing a complete used '08-09 engine from a wrecked truck. They have bigger displacement, more horsepower & torque, better economy, and larger alternators. You might have a couple of small challenges on the exhaust side but it would probably be worth it overall. I am considering just this for my California emission '04 5cyl 5mt 2wd.  Also keep in mind that any qualified automotive machine shop can repair these heads. Loose valve seats have been around since the first aluminum race heads came out and an experienced machinist can easily test and repair them better than new. Russ Replies to this message: dmathews3 (Jun 10, 2009 1:21 pm) russ95 (Jun 10, 2009 2:17 pm)
#354 of 389 Re: head problem way out of warranty [russ95] by dmathews3 Jun 10, 2009 (1:21 pm)
Replying to: russ95 (Jun 10, 2009 12:16 pm) remember that these new engines are run by computers and one years computer may or may not run a newer engine. I'm guessing that a 08/09 engine will NOT be compatible with his older trucks computer. I think shopping around for a good aftermarket repair place would not only be the best bet but also the cheapest. Replies to this message: russ95 (Jun 10, 2009 2:17 pm)
#355 of 389 Re: head problem way out of warranty [dmathews3] by russ95 Jun 10, 2009 (2:17 pm)
Replying to: dmathews3 (Jun 10, 2009 1:21 pm) Yes BUT the newer engine will not have any additional ECM controlled functions. If the inputs (sensors) are slightly different simply use the old ones. The existing ECM will quickly re-map the necessary parameters to operate the engine properly. A tiny gain might be realized by the matching year ECM but it wouldn't be noticable in driving it.  The only changes I'm sure of are: A. Upgrading the alternator output wiring & maybe the mega fuse. B. There may be differences in the exhaust port shape/location that may require the use of the later model manifold & cat's.  Looks like an easy one day install to me. Russ
#356 of 389 Re: Chevy Colorado/GMC Canyon: Engine Problems [chevyman29] by weezy3 Jun 11, 2009 (8:35 am)
Replying to: chevyman29 (Jan 07, 2009 4:12 pm) I just took my 2006 Colorado into the dealer due to rough idle also. It has 64,000 miles on it. You guessed it the head was bad. They are going to replace it for free. Would have been around $3000.00. If you have problems with your 5-cyl. engine idling rough make sure you tell the dealer that you know of this problem. Make sure the call the GM rep to see if your VIN fits into the free replacement grouping. By the way it is OK to drive it, the problem is that the valve does not seat and you lose compression at idle RPM's. The was a flaw in the main casting. Replies to this message: falcon19 (Jun 11, 2009 12:09 pm) lift4041 (Jul 31, 2009 6:19 am)
#357 of 389 Re: Chevy Colorado/GMC Canyon: Engine Problems [weezy3] by falcon19 Jun 11, 2009 (12:09 pm)
Replying to: weezy3 (Jun 11, 2009 8:35 am) I baught my 2006 5 cyl Colarado in January 2007 as a new vehicle. It runs fine now, but I only have 20K on the engine, since I own and drive two other cars. My problem is that my warranty ends in about 7 months. I don't want to be stuck with a $3000 repair bill, but I love the truck.   I called the dealer and was told that my VIN was not subject to a warranty extension at this time. I assume it was built sometime in 2006. I also called a HQ cutomer service number they gave me and was told the same.   You can bet that I will be making some more calls and inquiries before my warranty ends.   Any suggestions?Was this problem corrected on newer 06 models?
#358 of 389 I will never buy a GM again by warren62594 Jun 24, 2009 (5:32 pm)
I just picked up my Chevy COlorado from a dealership for the second time the head was bad. As you all know GM will honor the 100,000 miles under warranty. My problem 110,000 miles. As stated before this is the second time for this. The first time was at 60,000 now it is 50,000 on the new head. GM will not cover it as it is over the 100,000 mile mark. My main complaint is this is only 50,000 on the NEW head and they don't care! I got jerked around my so many people both at GM and my dealership. I was told that they can't do anything over 100,000 miles or they would have to for everyone. WHAT?!!! This is only 50,000 on this head....THAT GM KNOWS IS A PROBLEM!!!!! I was also informed that a civil lawsuit or class action lawsuit might be coming (if there are enough people) against this, as the dealership informed me that mine was one of the first vehicles to get this warrantied and that there may be more coming (like this is supposed to make me feel better about dropping $3200). Couple other funny notes about this is it was exactly the same cylinder (cylinder 2) on both heads, and both heads were produced by 2 different companies....I am thinking DESIGN FLAW!!! I am going to do everything in my LEGAL power to deter everyone I know (and ones I don't) to never buy a GM product again or visit the same dealership I did. One more thing...I also had to replace a cracked exhaust manifold with this....it just keeps getting better. Replies to this message: jpf (Jun 25, 2009 3:24 pm)

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