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1991 Cadillac DeVille 4.9L Surge
Posted to GM Driveability on 9/25/2002 2 Replies

Greetings and thanks for reading this.

This car surges worse at about 50 mph. Unplug the egr and symptoms are gone but the engine pings.

The system has an egr solenoid, egr valve and full engine vacuum to the solenoid at all times, no egr sensor (probably lo...

2 Replies Received (View Replies)

  Related Documents & Media  1991 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53BXM
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsSurge
OccursHot
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53BXM
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsSurge
OccursHot