[tech] need help! Car bucking on the hwy

[kirsten.jensen at earthlink.net (Kirsten Jensen)]

Although not in a Scirocco (and I am embarrassed to say what car it was) I 
had exactly the same symptoms you are describing and it was excessively 
fouled spark plugs that was causing the problem (they were completely 
covered in oil and oil related grime) .  They were getting fouled by 
leaking valve stem seals.  I had to change my spark plugs every three 
months so that it would not buck on the highway....until I put in new valve 
seals.

Kirsten


At 09:39 PM 4/20/2004, Patrick Bureau wrote:

>Alright,
>
>Driving at 70mph all of the sudden the car decided to "buck" more accurately
>describe as hesitation and lost of power.
>The tachometer does not flinch, and if I press on the gas it can achieve one
>of two possible things
>
>A) car revs up and pulls forward
>B) car tries to rev and feels like its staving on fuel or not igniting it.
>
>This seems to be intermittent, well, not constant at any point, more like
>randomized, but continual during a short 40 mile trip.
>If I drive I know I will endure this situation is what I mean, not it will
>happen twice in a week type of deal.
>
>So I was on my way home and close to a 24hrs AutoZone, and I swapped (yes at
>11pm at night) the in-tank transfer fuel pump.
>Results are the same.
>
>Anyone have any idea what this is all about???
>
>-
>ATS - Patrick Bureau - http://ats.longcoeur.com -
>A1 eBay Sales: http://tinyurl.com/22e5b
>'85 3A/JH 2L Scirocco | '86 8v Restore Project (in progress)
>'82 1.7L project |'81 S Project | '78 GTi 8v Project
>
>
>
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