Join Date: Jan 2004
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Re: 2000 trail blazer
Last year, I had a snowblower that did "weird & wonderful" behavior as well. New gas, new plug, tweaked its jets, etc. etc. Darn thing would NOT idle very steady and during its upper revs, it did very weid things as well. With some engines, even a little sand crystal stuck within its jets makes it behave wild. Rarely do I gave up!!!
Took it to my small engine guy down the road, he installed a new carb kit in it, cleaned the carb out and it's been running better since day one. You may want to investigate its float setting and/or the gaskets within its carb. Worked for my snowblower!!!
Hope this helps...