2003 Volkswagen Passat Air Pump / MIL

2003 VOLKSWAGEN PASSAT
160,000 MILES • 1.8L • 4 CYL • TURBO • AUTOMATIC
Avatar
ITSKEVN007
  • MEMBER
  • 15 POSTS
I might have a faulty air pump or water in the lines heading to the air pump. Will not repairing an air pump cause any long terms that can affect engine performance or anything of that sort?
May 12, 2014 at 4:23 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Are we talking about the air injection pump?The plastic tubes to it break and get holes in it.What are the exact code numbers you have not code descriptions?
May 12, 2014 at 5:11 PM
Advertisement
Avatar
EXOVCDS
  • CAR REPAIR CONTRIBUTOR
  • 1,883 POSTS
A partially stuck open combi valve will allow exhaust to enter the Secondary Air Pump Hoses, the warm air then condenses and water starts to collect in the pump.

No, not repairing the system should not cause any major engine performance issues, but the check engine light will come on and stay on (if it isn't already).

Depending on your local emission inspection, that will probably be a fail.

Thomas
May 12, 2014 at 6:44 PM
Avatar
ITSKEVN007
  • MEMBER
  • 15 POSTS
Thanks Thomas & Saturntech9, very helpful and good to know

Kevin
May 13, 2014 at 11:44 AM