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'90 Golf faltering for a second. Transfer fuel pump?



 
 
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  #11  
Old October 14th 09, 01:10 PM posted to rec.autos.makers.vw.watercooled
Wao
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Posts: 13
Default '90 Golf faltering for a second. Transfer fuel pump?

"Tony49122" > ha escrit al
...
> What are your symptoms? Stalls? Or falters but eventually keeps
> running? Very predictable or very intermittent?


Thanks for writing back, Tony! :-)

The engine may falter many times in a row, but it keeps running and it's
totally unpredictable. This issue may not show up for like a couple months
then do it non-stop for a week. This has been happening on and off for over
a hundred thousand miles now. The relay #109 is in like new
condition--replaced once. I took the car to many car mechanics --both VW
dealers and independent-- but they didn't seem to have a clue about this
engine problem. Nothing seems to be recorded permanently on the on-board
computer.

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  #12  
Old October 17th 09, 07:28 AM posted to rec.autos.makers.vw.watercooled
tonyw
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Posts: 64
Default '90 Golf faltering for a second. Transfer fuel pump?

On Oct 14, 5:10*am, "Wao" > wrote:
> The engine may falter many times in a row, but it keeps running and it's
> totally unpredictable. This issue may not show up for like a couple months
> then do it non-stop for a week. This has been happening on and off for over
> a hundred thousand miles now. The relay #109 is in like new
> condition--replaced once. I took the car to many car mechanics --both VW
> dealers and independent-- but they didn't seem to have a clue about this
> engine problem. Nothing seems to be recorded permanently on the on-board
> computer.


Hi, I'm afraid I don't know what to suggest, I'm not at all familiar
with diesels other than the theory on how they work. Somethings to
check:
- clogged fuel filter?
- combustion air flow unbobstructed?
- exhaust system not periodically clogged or broken?
- any relationship to how full is the fuel tank?
- wiggle the key in the ignition to see if problem goes away? (worn
out contacts in ignition switch)
- your fuel consumption/mileage reasonable?
- any difference when engine under load or just cruising?
- not sure if a diesel has vacuum lines, but if it did, any leak?
  #13  
Old October 24th 09, 11:17 PM posted to rec.autos.makers.vw.watercooled
Wao
external usenet poster
 
Posts: 13
Default '90 Golf faltering for a second. Transfer fuel pump?

Thanks Tony! I'll keep and eye on those things but this faltering issue is
so sporadic that it'll take me some time to check them out.

> Hi, I'm afraid I don't know what to suggest, I'm not at all familiar
> with diesels other than the theory on how they work. Somethings to
> check:
> - clogged fuel filter?
> - combustion air flow unbobstructed?
> - exhaust system not periodically clogged or broken?
> - any relationship to how full is the fuel tank?
> - wiggle the key in the ignition to see if problem goes away? (worn
> out contacts in ignition switch)
> - your fuel consumption/mileage reasonable?
> - any difference when engine under load or just cruising?
> - not sure if a diesel has vacuum lines, but if it did, any leak?


 




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