1993 Chevrolet Cheyenne High idle

1993 CHEVROLET CHEYENNE
150,000 MILES • 6.2L • V8 • 2WD • AUTOMATIC
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BULLITT2525
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I have a 1993 Chevy 1500 6.2 diesel that when I start it after cranking forever it starts up and then is wide open idle until I riv it up and then it rivs then idles back down then instantly goes to wide open idle again
Nov 27, 2015 at 3:38 PM
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ASEMASTER6371
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you need an injector pump. the pump has failed internally causing your issues.

Roy
Nov 28, 2015 at 12:09 PM