Volkswagen Cabriolet 1987 120'000 miles fuel system

FRAGIACOMOF

MEMBER
1987 VOLKSWAGEN

Hi
I read an existing question regarding a volkswagen:
Frequently after driving in stop and go traffic or after prolonged periods of driving, the fuel pump begins to whine noisily. Shortly after that, the front end jolts violently a couple of seconds after being after being shifted into another gear. Frequently after that, the engine stalls.

I'm in the same situation, I just removed the "main fuel pump", because it was noisy, and I had the same problems.
I have a chilton manual, but it don't tell me if my car have also a in tank fuel pump, and it doesn't explain very well how to understand it.
Do you know where if my years and model has also an in tank fuel pump?
There was a process in the book to test the pump by measurig the deliver, it should be.8 liter for 30 second, in my case was 0.4, but how can I understand if the problem is on the intank pump, or in the other one?
Now I have the main fuel pump in my hands, there is a way to test it?
Thanks
Fabio

1 Reply

PAULT

MEMBER
3 POSTS

I think that you probably read my post about my 1987 vw cabriolet stalling in stop-and-go traffic.

I don't have a solution yet, just a long list of possibles. One of these is the fuel pump but I'm not getting the whining that you are. Other possibilities seem to be vacuum leak, fuel injectors, EGR valve.

I will keep in touch with you though this bulletin board and I hope you will let me know if you solve your problem because it seems that we have the same car and a very similar if not identical problem.

Paul