Question about 1999 Chevrolet Silverado 1500
I have experienced this problem on similar vehicles. You should try and replace the coolant temp sensor. If it is not reading the correct temp to the ecm, it will not get the right fuel map. Also, the cts will not always throw a code.
Posted on Aug 04, 2008
Check the iac. idle air control. it is either this or the tps. both cost about forty bucks each.
Posted on Sep 18, 2009
Everyone has an opinion and mine is the tps throttle positioning sensor. if it runs ok in park but then runs like **** when in drive? tps sensor
Posted on Jan 26, 2009
Same thing happened twice to my 1996 5.7L. changed the EGR valve, all was good after that. The valve gets clogged, sometimes you can clean it out a little to get you home. On the 96 it is located on the top of the motor on the front.
Posted on Nov 16, 2008
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