what is wrong with my canyon?

2005 GMC CANYON
84,000 MILES
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CANYON OWNER
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I have a check engine light on and it coded misfire in # 5 cylinder (straight 5). Once warm, RPMs will drop to about 300 to 500 at idle and it wants to die. Had it checked by a dealer mechanic and cylider pressure, plugs, wires and injectors all cleared. I have no idea what to do next. They wanted to rip the head off and look for a minumum of $1500. I would like to look simple first them difficult. Runs fine under power.
May 9, 2012 at 8:05 PM
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SATURNTECH9
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Thats crazy if the compression was good then why pull the head?Those have issues with clogged injectors i just had one similar to that one that had a couple of different cylinder missfire codes.Everything checked out like yours i did a professional fuel injectiin cleaning where run the engine off a pressure canister with cleaner.The codes went away and the engine ran great.
May 9, 2012 at 8:26 PM
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CANYON OWNER
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do you know anyone in wichita that is trustworthy. I will not be going back there,
May 9, 2012 at 9:38 PM
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ASEMASTER6371
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check around local shops and stop in and talk to the people. check many shops before settling for allowing them to help you.

Saturn is right. I have had the same issues in our shop and injectors are a big issue.

Roy
May 9, 2012 at 10:49 PM
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SATURNTECH9
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Us moderators live all over the world none near where you live that i know of.Heres a great resource its called repair pal google it.
May 10, 2012 at 3:48 AM