johnsongti
Member
Ok so I have a 04 Jetta PD all stock with 140,000 miles. The other night on the way home it lost engine power and died on the highway. I did some research and have been checking all the common things out as im sure its fuel related and not getting any. Im at a point where im stuck and need expert TDI help so I come here.
Here is what I have checked,
*Vag-Com scan shows no codes (usually does not with a fuel prob anyway)
*Lift pump comes on and primes with correct amount of fuel.
*Fuel filter has been replaced along with the T-Fitting ontop of the fuel filter.
*I have put a inline electric fuel pump from the filter to the tandum pump and still it does the same thing cranks and sometimes starts for 2 sec then stalls.
* Glow plug light still comes on so I don't think its the 109 relay.
* took off return line on tandum pump and a little fuel will come out with cranking makes me think fuel is getting to the tandum pump ok.
* checked the actuator valve at the throttle plate (cant remember what its called at the moment but the rod is free moving and so is the other one the intake side of the intake manifold.
*Timing belt is ok with no missing cogs or incorrect tension.
OK so Im leaning toward the Tandum pump being possibly shot. Im not sure how to test this with the car not even idling so any help in that direction would help. Also the tandum pump runs from vac right? If thats the case I traced the line back to a few sensors on the firewall, could one of these be bad and causing the tandum to not pump?
I think I have covered everything I have checked, IF anyone has any incite please let me know.
Thanks,
Cris
Here is what I have checked,
*Vag-Com scan shows no codes (usually does not with a fuel prob anyway)
*Lift pump comes on and primes with correct amount of fuel.
*Fuel filter has been replaced along with the T-Fitting ontop of the fuel filter.
*I have put a inline electric fuel pump from the filter to the tandum pump and still it does the same thing cranks and sometimes starts for 2 sec then stalls.
* Glow plug light still comes on so I don't think its the 109 relay.
* took off return line on tandum pump and a little fuel will come out with cranking makes me think fuel is getting to the tandum pump ok.
* checked the actuator valve at the throttle plate (cant remember what its called at the moment but the rod is free moving and so is the other one the intake side of the intake manifold.
*Timing belt is ok with no missing cogs or incorrect tension.
OK so Im leaning toward the Tandum pump being possibly shot. Im not sure how to test this with the car not even idling so any help in that direction would help. Also the tandum pump runs from vac right? If thats the case I traced the line back to a few sensors on the firewall, could one of these be bad and causing the tandum to not pump?
I think I have covered everything I have checked, IF anyone has any incite please let me know.
Thanks,
Cris