1994 Ford Probe rough idle

1994 FORD PROBE
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26PHIL
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  • 1 POST
Engine Performance problem
1994 Ford Probe 4 cyl Front Wheel Drive Manual 178xxx miles

the car starts fine but sometimes when i come to a stop sign or stop light it idles rough it acts like it wants to shut off. I did notice when i changed the spark plugs there was oil on them do u think i should replace the valve stem seals.
Jan 3, 2010 at 11:32 AM
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RACEFAN966
  • ✓Experienced Mechanic
  • 5,029 POSTS
The oil was on the outside of the plugs right? If that is correct then you need a new vavle cover gasket that includes spark plug seals. Here is a pic of the gasket. Then I would replace the spark plug wires if they are covered in oil.


https://images.2carpros.com/forum/automotive_pictures/249564_612303_1.jpg

Jan 4, 2010 at 4:16 AM
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BLASTO
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  • 5 POSTS
If car runs rough only at idle, it's unlikely to be the leads. I would check the TPS. Yes, you have an unrelated leaking VCG, they last about 5 years or 30000km.
Jan 5, 2010 at 9:38 AM
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