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Can I fix?

Old 08-01-2010, 07:53 PM
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Join Date: Aug 2010
Posts: 2
Default Can I fix?

2003 3.8 w/ throttle body town and country. I'm having problems w/ rough idling, skipping like it has a spark plug fouled. I have changed all the plugs, wires and coil. Does anyone have any suggestions? Thanks for any help in advance.
Old 08-02-2010, 03:05 AM
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Join Date: Dec 2008
Location: Surrey
Posts: 192

Check for vaccum leaks due to perished pipes both at the manifold and around the brake servo. Also try cleaning the throttle body thoroughly with carb cleaner taking extra care to clean the small air holes specifically the ones coming from the EGR valve. Also check for leaks around the inlet manifold and throttle body gaskets.

You could also try doing a spark jump test on each cylinder to ensure your igniter is working properly for each cyslinder and then try running some injector cleaner through the system to ensure it is not a fuel delivery problem as opposed to a spark issue. I am assuming the car is properly serviced with new filters all around.
Old 08-03-2010, 05:29 PM
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Join Date: Aug 2010
Posts: 2

Thank you Glowplug. I have searched for a vaccum leak without sucess. I also have ran fuel cleaner through system several times via gas tank. I can't find the ERG valve so I dont know if it is good or not. What about the map sensor? The 2003 town and country is still missing ALOT in the mornings and after you put it in drive. After it warms up and in neutral it's not as bad. Anyone with any suggestions Thanks
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