2000 GMC Sierra 1500 problem

Joe · 2004-11-29T02:16:08+00:00

Hello to the group,I am having a problem again with my service engine light coming on. Over thesummer I posted a note to this group about my truck being difficult to startonce it was warmed up. It was the fuel pressure regulator as a few peoplehere told me. We fixed that.Now it is a more difficult problem. The 'service engine light' is on. I havetightened the gas cap (I even replaced it), and the other day my mechanicput it on his analyzer and reset it. He said he thinks it's the O2 sensorthis time. But I thought there was more then one O2 sensor (?). Anyway, hemade the light go off, but after I drove about 10 miles, it came back onagain. It is a 2000 GMC Sierra 1500, 4WD, with a 4.8L vortec engine.I realize this may not be enough information, but it is all I have. Thetruck seems to run fine. There's no other symptoms. Just that damn light.Anyone have any suggestions?TIA,Joe

Nov 29, 2004 22 Replies

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Joe 21 years ago

Ok, thanks Doc

Joe

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Joe 21 years ago

Hi Alec,

Thanks for that link. I am going to see if I pass the inspection first and if not, I will take it to the dealer. Since I already had the sensor replaced, I should be OK for this year.

Joe

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Joe 21 years ago

Thanks to everyone who replied. I was able to get my inspection sticker this AM. I had put a little over 200 miles on it since the O2 sensor was replaced and the code was reset last week.

Joe

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