Re: 90 Golf is great, but jumpy when it's damp
- From: ngt@xxxxxxxxxxxxxxx
- Date: 27 Jul 2006 18:20:16 -0700
I have a '92 Golf 1.8L and have experienced very similar problems from
time to time. Last fall the car would barely start on cold, damp
mornings, and took perhaps 10 minutes to warm up and run properly. I
installed new Bosch platinum plugs, and the problem went away. In
fact, with the new plugs the car started and ran well even at -20C.
However... It's been very rainy and humid here the past few days, and
the starting/rough running problems reappeared even in summer
temperatures. Since the plugs have only about 10,000km on them, I
couldn't believe they had gone bad already. Similarly, the HV cables
are Bosch OEM, about two years old with perhaps 20,000km, so should be
good. I inspected all the HV connections at the plugs and distributor,
cleaned all the connectors with electrical contact cleaner and then
applied dielectric grease. I found that the connectors to the spark
plugs were badly corroded, and that there was a thin layer of
corrosion/dirt on the plug insulator and the rubber insulator inside
the connector. My guess is that salty slush splashing on the engine in
winter had caused the corrosion. Under humid conditions, the corrosion
residue likely becomes conductive, and shorts out the plug. After I
cleaned all the connectors, the car started and ran perfectly, even on
a rainy morning with humidity near 100%.
So.. although a shotgun approach of replacing plugs, HV wires, cap and
rotor will almost certainly solve this problem, simply cleaning all the
HV connectors may work too.
Garry
Ldray wrote:
I just purchased a 90 Golf GL with nearly 240.000 miles. It has been
well maintained, has a brand new distributor even. The plug wires have
also been replaced. The previous owner told me that it stalls when
it's driven in the wet occasionally. It stalls for about 5 minutes,
then all is well.
Well.. it has been very damp and rainy here, and even though it's
wasn't raining today, the car is bucking like a bronco ride in a
roadside saloon on occasion. The idle is a little rough, and it stalls
now and again at a trafficl lite.
I have heard from another Golf owner that the older Golfs 'just do
that".. well, I'd really like to figure this one out. It is a whole
lot of fun to drive, but the bucking has got to go.
Any suggestions would be greatly appreciated!
Larry
.
- References:
- 90 Golf is great, but jumpy when it's damp
- From: Ldray
- 90 Golf is great, but jumpy when it's damp
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