Golf running, stalls occasionally

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Ears - 22 Feb 2009 06:58 GMT

Finally got back the 90 Golf 8V back from the shop. It stopped
running one day when around a corner I stepped on it and it died with
a whirring sound. The shop replaced the timing belt, water pump,
battery, and starter. $750 and a week later, it's running again.
Yes!

When I got it home I replaced the oil, filter, and plugs for good
measure.

Anyway, it still stalls (dies) occasionally at stoplights when I put
in the clutch and the revs drop.

Suggestions?

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Nate Nagel - 22 Feb 2009 14:28 GMT

> Finally got back the 90 Golf 8V back from the shop. It stopped
> running one day when around a corner I stepped on it and it died with
[quoted text clipped - 9 lines]
>
> Suggestions?

I'm not sure if a 90 is CIS or Motronic, but if the former, I had a
similar problem with an '84 GTI, it was eventually determined to be the
idle speed screw in the throttle body- it was screwed in too far and was
causing the auxiliary air valve to always be open. Backing the screw
out solved the problem. Another possibility if CIS is if the electrical
connection to the AAV is disconnected and/or the AAV has failed.

nate

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dave AKA vwdoc1 - 23 Feb 2009 01:36 GMT

Have that shop triple check the timing of the engine and the ignition
timing, but mention it in a "nice" way. Maybe telling them you are
experiencing engine stalling. ;-)

I have seen too many incorrect timing belt jobs from other shops and even
from the dealer.
Does the engine have good smooth power?

Then check the ground wires to the cylinder head for the fuel injection.
Check for vacuum leaks especially at the intake manifold boot. Its clamps
might even be loose. ;-)

Signature

later,
(One out of many daves)

> Finally got back the 90 Golf 8V back from the shop. It stopped
> running one day when around a corner I stepped on it and it died with
[quoted text clipped - 9 lines]
>
> Suggestions?

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Ears - 27 Feb 2009 04:45 GMT

Thanks for the suggestions.

The car runs very smoothly once it's warm. I'll take it back to the
shop as a last resort. I checked all the hoses in and around the
intake and couldn't detect any cracks or leaks.

I did take the cannister off on top of the rubber grommit on the very
top of the motor. You know the plastic thing that sits on the very,
very top? Anyway, both it and the grommit were filled with a yellow
grimy substance. I noticed it continued up the hose that connects
that cannister thing to the motor.

What is that cannister called? What's that yellow stuff? Could it be
a result of cleaning it with WD40 last week?

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SFC - 27 Feb 2009 09:35 GMT

The yellow stuff is a mix of oil and water. You get this from short trips.
My old '89 had also this stuff clogging up the carb causing a bad idle after
comming of the freeway. After a good clean of the valve cover and hoses it
never did it again..

SFC

> Thanks for the suggestions.
>
[quoted text clipped - 10 lines]
> What is that cannister called? What's that yellow stuff? Could it be
> a result of cleaning it with WD40 last week?

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bajords9@gmail.com - 23 Mar 2009 05:30 GMT

How are you making out with the intermittent stalling? Any resolution?

Did the shop replace the fuel pump relay? If original, it's got 18
years on it. Your manual should indicate which position it is in on
the fuse block. It's not a very tall relay and one way to locate it is
to touch the relay and turn on the ignition. You should feel when he
solenoid inside goes clunk.

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