VW Rough when cold in Rainy Weather

golf
volkswagen

#1

My 1999 VW Golf (120,000 miles) runs very rough for the first few minutes when it is first started after sitting a day or two when the weather is very damp or rainy. After a minute or two or a 1/4 mile it clears up. It seems like water or moisture is messing up something. I’ve had the plugs changed, not sure what to try next.


#2

“I’ve had the plugs changed”

How about the wires? You could also have a very small head gasket leak, leaking coolant into one or more of the cylinders. At first start, this coolant has to be burnt off which can take a minute or two.


#3

Try new spark plug wires.


#4
If the new wires don't help, then a new coil or distributer may be in order.

#5

Sorry - I had new wires put in when the plugs were chnaged.


#6

New wires were put in with the plugs (I forgot to mention). If it’s coolant in cylinders I think I’d notice even during dry weather (at least once in awhile). This is definitely linked only to rainy weather.


#7

I think I have electronic ignition, so I thought that means I do not have a distributor.