2006 Buick Lucerne DTC P0443

2006 BUICK LUCERNE
80,000 MILES
Avatar
MIGHTYJOE15
  • MEMBER
  • 1 POST
What should I check first before replacing parts ? I have cleaned the throttle body air filter has been replaced I sea-foamed the fuel injection system the check engine light comes on and stays on in the beginning it was intermittent.
Sep 12, 2013 at 2:13 PM
Advertisement
Avatar
THIS IS MIKE
  • CERTIFIED EXPERT
  • 686 POSTS
P0443 - Evaporative Emission Control System Purge Control Valve Circuit Malfunction

What the trouble code has found is the vapor recovery system circuit is malfunctioning, which 9 times out of 10 means the solenoid that purges the vapor back into the engine has failed or the wiring to it has failed. Replacing the purge control solenoid usually solves the problem.

Sep 12, 2013 at 2:36 PM
Avatar
MADMIKE1735
  • CERTIFIED EXPERT
  • 951 POSTS
i agree... the part isnt that expensive, so its worth a shot... in order to test the part, you would need a vacuum pump, and a power probe... if you have access to those, we can further assist you in verifying the part has failed....
Sep 14, 2013 at 7:03 PM
Advertisement