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#1
06-07-2009, 02:37 PM
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02 gmc service light comes on when pulling a load
I have a GMC 6cyl m/t . My problem is when I pull my boat ( a 17 foot tracker) my service engine light comes on when going up hill. It starts running rough and losing power. then when I make it over the top it starts running smooth and the light goes off. Lately it comes on when running the a/c without pulling a load. Changed plugs and dist cap and rotor button recently. Thanks for your help.
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#2
06-26-2009, 11:51 AM
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Re: 02 gmc service light comes on when pulling a load
Just saw your post and you may have it resolved by now. I had the same problem with my 96. Replaced the 02 sensors and that solved my problem. Good luck.
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