1989 Cadillac DeVille 4.5L Poor Idle Quality, Surge, Misfire, Back fires

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Posted to GM Driveability on 7/11/2000

Hey Guys,

This thing is eating my lunch. This vehicle came in to the shop with a rough running complaint. Checked ignition and secondary is all over the place. Secondary lab scope pattern is extremely erratic. Watching RPM using a secondary probe shows bounci...

Vehicle Data

1989 Cadillac DeVille

VIN	1G6CD5150K
Engine	4.5 L / 8 cyl / GAS
Trans	4-speed Automatic
Delivery	FI / Digita Fuel Injection
Emissions	Federal
Symptoms	Poor Idle Quality, Surge, Misfire, Back Fires
Occurs	Always

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Vehicle Data

1989 Cadillac DeVille

VIN	1G6CD5150K
Engine	4.5 L / 8 cyl / GAS
Trans	4-speed Automatic
Delivery	FI / Digita Fuel Injection
Emissions	Federal
Symptoms	Poor Idle Quality, Surge, Misfire, Back Fires
Occurs	Always

Related Documents & Media 1989 Cadillac DeVille

Related Documents & Media 1989 Cadillac DeVille

Vehicle Data

1989 Cadillac DeVille

Vehicle Data

1989 Cadillac DeVille