Question about 2004 GMC Yukon

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Misfire at first cold start

When I start my 2004 gmc yukon xl in the morning or when the motor is cold , it cranks over longer and has a misfire ti\ype of noise. once it starts it does not do it agian until the next am

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If you have 80,000 miles or more on the engine and its very had a tune-up you need to get that done and all try running so seafoam threw thw fuel you can pick it up at your local parts store.just follow the instrustions.

Posted on Nov 16, 2009

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My 2004 gmc yukon xl will run after 2 times cranking


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You need spark at the right time, fuel pressure at the injectors, and normal compression.
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Will not start


Service light can be due to misfiring in one cylinder, discharged battery, or faulty O2 sensor. Start from battery (you can try jump start) to distributor cap/wiring/spurk plugs/alternator. Also check fuel lines (fuel injectrors, filter, pump). If no help check O2 sensor and coolant temperature sensor.
Please kinly let me know if you would need more info
Good Luck

Feb 23, 2009 | 2001 GMC Yukon XL

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