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1987 Chevrolet El Camino 5.0L Poor Idle Quality, Misfire, Backfire
Posted to GM Driveability on 4/16/1998

This vehicle runs poorly with the EST connected, timing goes to 30 degrees at idle and will advance to appx. 38 degrees at higher RPM. The KV firing line increases from 8k to 16-24k with EST connected. Also multiple firing spark lines (10-15) With EST disc...

  Related Documents & Media  1987 Chevrolet El Camino

 
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet El Camino

VIN 3GCCW80H3H
Engine5.0 L / 8 cyl
EmissionsOBDI, Ca Emissions
SymptomsPoor Idle Quality, Misfire, Backfire
OccursAlways, Est Connected
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet El Camino

VIN 3GCCW80H3H
Engine5.0 L / 8 cyl
EmissionsOBDI, Ca Emissions
SymptomsPoor Idle Quality, Misfire, Backfire
OccursAlways, Est Connected