Problem Reports

Cadillac DeVille

Report: Check Engine Light on Due to Faulty Catalytic Conveter

• Check Engine Light Due to Intake Manifold Vacuum Leaks
  An intake manifold vacuum leak can develop from a variety of sources, often causing illumination of the Check Engine Light with codes P0171 & P0174 stored. Thorough diagnoses will be necessary...

  Common Problems > Cadillac DeVille

• check engine light on code po443 evap emission system
  check engine light on code po443 evap emission system purge vent soleniod circuit condition. what does this mean.

  Q&A > Cadillac > 2000 Cadillac DeVille

• Check Engine Light Due to Gas Cap or Catalytic Converter
  Two likely causes for the Check Engine Light to illuminate would be a loose or worn gas cap or...

  Common Problems > Cadillac DeVille

• I changed out the fuel pump on my 2004 cadilac deville now the service engine
  the car quit had to replace the whole fuel pump. since then the service engine light is on. i had it checked and it revealed that the camshaft position was defective and a evaporator emission leak....

  Q&A > Cadillac > 2004 Cadillac DeVille

• Check Engine Light due to EGR control solenoid/valve failure
  The EGR control solenoid or EGR valve may fail causing the Check Engine Light to illuminate.

  Common Problems > Cadillac DeVille