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Last Updated: Jul 15th, 2008 - 09:12:22 |
Reader Question Hello My name is Martin I have a 1993 Chevy Silverado 1500 Pick up V8 350. I would like to know what is the normal idle speed when my truck is running cold? what is the normal idle speed when my truck is at normal temperature? Thank you
Hey Martin
That depends on how cold it is outside, how cold the engine is, what elevation you are at, if you have the a/c on, if your battery is low and the alternator is working hard to recharge it etc etc. I would probably want the idle speed to be about 1100-1300 on a cold day at first start up for a few seconds….maybe 30-60 seconds depending on how cold it is outside. The idle should gradually go back to normal, about 950…or so as you drive and the engine warms up. I would say anything over 1500 there is probably a problem...like a vacuum leak under the hood or something wrong with the idle speed motor or a dirty throttle body.
Blessings,
Austin Davis
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