Get the latest advice about your car

Get Started
Advice » Problem Reports » Performance Issues Due to Faulty ECM Grounds at Front of Engine

Problem Reports

Cadillac Fleetwood

Report: Performance Issues Due to Faulty ECM Grounds at Front of Engine

Cadillac Fleetwood Problem
6 Reports

Model Years Affected: 1990, 1991, 1992, 1993, 1994

Verified

The engine control module (ECM) electrical grounds on the front of the engine block may have high resistance causing a rough running engine or stalling condition.

  • Report #1
    Visitor, 1991 Cadillac Fleetwood, 140,000 mi

    Runs fine, the all of a sudden, begins to run rough, rough idle, stalls when stopped or in turns, check engine light comes on only when on highway, sevice soon light on sometimes. 2 different mechanics couldn't find problem.

    Flag This
  • Report #2
Ask a Question