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2004 GMC Yukon XL Denali Traction Control

15 messages, Last post on Dec 01, 2009 at 8:53 PM
You are in the GMC Yukon Forum. Your Hosts are steve_ & tidester
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Replying to: isi (May 27, 2009 11:15 am) I got to cut grass now so i will check back in 1 to 2 hours.
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Replying to: jdlsierra (May 27, 2009 11:36 am) |
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Replying to: jdlsierra (May 27, 2009 11:36 am)
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Hi everyone, I have an engine light that goes on and off all the time. I tried new high grade fuel, the gas cap is tight and snapped when doing so but still the light goes on and off. I did notice that sometimes when I turned on the high beams the engine light would come on. It usually goes off in a day or two. Is it the battery or alternator?? Thanks, London, Ontario
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Replying to: boxman4 (Nov 30, 2009 3:17 pm) For example it could be an O2 sensor, gas cap, MAF (mass airflow sensor) or a number of other emissions related problems. If you know someone with a code reader, check the error code, it will point you in the right direction. On my Denali, the gas cap was tight but the light still kept coming on intermittently. It turns out that there was a tiny crack in the rubber ring on the gas cap that forms the seal between the gas cap and the filler neck. A new gas cap solved the problem. Good luck.
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Replying to: isi (Jun 26, 2009 9:42 am) |
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Replying to: boxman4 (Nov 30, 2009 3:17 pm) tidester, host SUVs and Smart Shopper |
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Replying to: isi (Nov 30, 2009 3:49 pm) |
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