Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
High idle at operating temp?
I have a 1993 silverado 350 tbi. It runs fine and everything but if I go to the store or where ever and turn it off then start it again when I get back it idles at 1500 rpm. It only happens after the motor is at running temp. And it will run high like that even after I drive for a while, if I am at a stop light it's still high. Could that be where I am getting my horrible gas mileage from too? I'm getting about 6.25 mpg. And I rarely floor it, theres no lift and motor is stock and the tires are only 31's. I did a tune up in spring of 2010. Fuel filter is around a year old and air filter is around 2 months old.
2 Answers
- Steven PLv 69 years agoFavorite Answer
may have a bad idle air control valve (IAC) that is screwed onto the intake . may be take it off and try cleaning it with some carb cleaner before buying a new one.
- 4 years ago
some problem-loose issues: Low oil point- carry the point to the finished mark on the dip stick. contaminated oil - (diluted and/or particularly grimy) - replace it ASAP. insufficient oil viscosity - Oil too skinny to supply needed bearing cushion - utilising 5W-20 or 5W-30 - (swap to 10W-40 alongside with Valvoline Max-existence intense-mileage oil). Engine temperature too intense - Above 2 hundred deg can skinny the oil decreasing bearing cushion.
