How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Z. Your Own Question
Ron Z.
Ron Z., - GMC Tech -
Category: GM
Satisfied Customers: 18958
Experience:  18+yrs experience. State Inspector & GM Diagnostics/Repair
Type Your GM Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

2003 gmc sierra 2500 code p0443 what could be the problem .thank you

This answer was rated:

2003 gmc sierra 2500 code p0443 what could be the problem .
thank you

Welcome! I'm Ron Z! I will do my best to answer all of your questions. For easy access to this thread, bookmark it now! Please read everything!

The P0443 is a fairly straight forward code pointing to a fault in the EVAP Purge Solenoid. Carefully inspect the vacuum lines for any cracks, holes or loose/missing connections. Inspect the electrical connector for any loose, broken or rubbed through wires. If the visual inspection checks ok, suspect a faulty solenoid.


Ron Z. and 6 other GM Specialists are ready to help you