Hi VW Gurus out there.

 

I�ve got an �85 westy and have been having some problems with it since
purchased in 2003.  Here are the symptoms:

 

-        hestitations, � power every once and a while � often when it is wet
outside � lasts a couple of days, comes on slowly and then gets more power
back over the course of a couple of days

-        fuel pump making buzzing sound, almost always

-        bucking at low rpms (around 2200) � van bucks when accelerating to
speed, not at speed (i.e. when under load)

 

Here�s what I�ve done so far to fix it�

 

-        new tank, new fuel pump, new fuel lines, new filters

-        new fuel pressure regulator

-        new sparkplugs, wires (x2now), new distributors, rotors, etc.

-        checked most wire connections including ignition coil

-        added injector cleaner

-        (by the way, this van has been overhauled � new heads,
transmission, clutch, you name it�)

 

The new fuel pump started making noises almost immediately after having been
replaced (March, 04) � the mechanics didn�t seem to think this is a problem.
The old gas tank was a mess of rust so we thought that that was the problem.
The hesitation thing is super frustrating as at least 3 different mechanics
across Canada couldn�t lick it � and still can�t.  The bucking phenomena is
new though I fear it is related to the ever increasing sound of the
squealing fuel pump.  

 

I don�t have any fancy probes or instruments, pressure checkers etc. to do
some sleuthing but would buy some if given some directions on what to buy
and how to use them.

 

I�m pretty sure the hesitation isn�t the �intermittent syndrome� I�ve heard
about, as it will slowly come on, over the course of a few days, get really
annoying and then leave in the same manner.  I just drive through it now.  

 

I have a sneaking suspicion that the hesitation and bucking, noisy fuel
pump, are all related to one little gadget that needs replacing � but have
no clue at this point!

 

All help appreciated!

 

Ben

 

Benjamin A. Wheeler, M.Sc.

Northern Environmental Marine Organization

Box 1538

Iqaluit, Nunavut

X0A 0H0

ph. (867) 979-3881

cell. (902) 223-6115

bwheeler@nv.sympatico.ca