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Straight six · 09-10-2013, 10:35 AM

I have a 78 c15 4.1. My question is when it's cold I start my truck the rpms are like 2000 then after warm its goes down to 750. Is that normal for the high idle to be that much at start ?
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09-10-2013, 10:35 AM	#1
Straight six Registered User Join Date: Aug 2012 Location: Newington ct Posts: 177	High idle I have a 78 c15 4.1. My question is when it's cold I start my truck the rpms are like 2000 then after warm its goes down to 750. Is that normal for the high idle to be that much at start ? Posted via Mobile Device