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2002 CL55 AMG, 1993 190E 2.3L, 2004 SLK320 Sport
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1,733 Posts
Discussion Starter #1
I own a 1987 260e! Can anyone tell me why my car has a rough idle while in drive? I have changed the sparkplug wires, fuel filter, and fuel injector cleaner but nothing ! It's really starting to #%^&! me off! Any advice would be greatly appreciated !
 

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2002 CL 500
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222 Posts
those years, cars had a device called a pvc valve usually located on top of the valve cover, if this is clogged your car will have a rough idle since it's operated by vacuum. good luck.
 

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Registered
2002 CL55 AMG, 1993 190E 2.3L, 2004 SLK320 Sport
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1,733 Posts
Discussion Starter #6
Thanks, I checked that and it was fine. I had not changed the cap and rotor. I took the cap and rotor off the car today and I noticed alot of wear on both
of them. This could be a good reason for the rough idleing and misfireing ? I'm going to go to MB & I'll
see if the new cap & rotor have a big difference than mine ! If they do, I'll buy them & hopefully I could finally get a good nights sleep !
Thank You very much !
 
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