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Bad Idle 94 Concorde 3.5L

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Old Jun 6, 2006 | 11:51 AM
  #1  
REGMIKE's Avatar
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Joined: Jun 2006
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Default Bad Idle 94 Concorde 3.5L

I have a 94 concorde that idles erratically. It runs fine on the road, but at idle it tachs too high. Car has 130K - any suggestions on how to test and what to look for to isolate problem?
 
Old Jun 13, 2006 | 03:24 PM
  #2  
Morparth's Avatar
Joined: Jun 2006
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Default RE: Bad Idle 94 Concorde 3.5L

My 96 LHS had same problem, I check for obvious vacuum leaks, checked IAT valve, everything was fine, pulled upper intake plenum and gasket was leaking around #1 and #6 cylinders.
 
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