Car Problem Reports

Volkswagen Jetta TDI Check Engine Light Due to Ignition Component/Engine Coolant Temperature Sensor Failure

• Engine light is on and engine losses power going up hill, any ideas?
  Same as above

  Q&A > Volkswagen > 2003 Volkswagen Jetta TDI

• Check Engine Light Due to Issues With Glow Plugs/Wiring Harness
  Because of issues with the glow plugs and/or the glow plug wiring harness from the control relay, the Check Engine Light may illuminate. Our technicians tell us there is a service bulletin, not a r...

  Common Problems > Volkswagen Jetta TDI

• Check Engine Light Due to Dirty/Failed Throttle Body
  A dirty or failed throttle body can cause various drivability issues and illumination of the Ch...

  Common Problems > Volkswagen Jetta TDI

• Loss of Power Due to Oil and Carbon Build Up in Intake Manifold
  Oil and carbon tend to build up, creating restrictions in the intake manifold. Symptoms will be...

  Common Problems > Volkswagen Jetta TDI

• Difficult to Diagnose Electrical Issues Are Typically Due to Ground Issues
  Electrical issues that are difficult to diagnose—and sometimes intermittent—are ty...

  Common Problems > Volkswagen Jetta TDI