firing order and compression specs 06 Canyon? - Chevy Colorado & GMC Canyon

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Old 03-23-2008, 02:19 PM   #1 (permalink)
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Default firing order and compression specs 06 Canyon?

I have been reeding up in this site about the colorado problems with the heads. Well guess what I have an 06 Canyon (love it) except the head problems. I keep getting the misfire code, bad gas mileage and rough idle. Did a compression test on the cylinders and found front cylinder 100psi next 145, 170, 110, 145. Does anyone know what they should be and what the firing order is? Truck has 68k and warranty has run out, also Canadian. Hope the dealer is willing to take responsibility. I am taking it in tomorrow for a leak-down test and see what they say.
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Old 03-26-2008, 01:17 PM   #2 (permalink)
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Default Re: firing order and compression specs 06 Canyon?

i checked mine coulple months ago.at 12k miles, i got from front to back...225,210,210,210, and 185. not probs yet, just keepin tabs on it. you sound like you have a big problem
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Old 03-26-2008, 07:17 PM   #3 (permalink)
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Default Re: firing order and compression specs 06 Canyon?

Just got the news back from the dealer. I asked them to do a leak-down test and told them what my thoughts were. The service advisor called me in the afternoon and told me their compression test showed all good cylinders. They thought it was an electrical problem and were switching out coils and plugs. The next thing they were going to do was remove rocker cover and check under. I thought that was funny as they thought it was an electrical problem. My next call to them the advisor told me the head was gone and the truck was not drivable. I thought OK here goes, they are taking care of prelim work ($220.00) estimate and all work and parts. All I have to cover is Oil change and injector clean ($140.00) Great news but the Head is the same as original. Won't I have the same problem 60K down the road. I will check the compression after break in and record them for later reference. Thanks for your input.
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Old 03-27-2008, 06:18 AM   #4 (permalink)
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Default Re: firing order and compression specs 06 Canyon?

from my understanding, you should get a head with the hardened valve seats.that is the reasron in the first place for it going bad.
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Old 03-27-2008, 11:02 AM   #5 (permalink)
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Default Re: firing order and compression specs 06 Canyon?

Thats what I'm getting, Thanks for the info. I also did not realize that they have timing chains not belts.
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Old 03-28-2008, 08:49 PM   #6 (permalink)
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Default Re: firing order and compression specs 06 Canyon?

Got it back today, runs great. Hopefully I will see an increase in fuel milage. Im sure I will. GM took care of it without question. Just had to pay for an oil change and injector clean $145. I will wait a couple of weeks before I put the cold air back in. I will also add Lucas oil additive, I like what I have heard about the product. Anyone have any input about it? Next major purchase for the truck will be exhaust and spray on bed liner. Still would like to know the firing order if anyone knows. Did the front brakes today, that was fun. Had to take out the hub assembly to get at the rotor. First one took 5 hours, second one took 1 hour.
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