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Discussion Starter · #1 ·
I am getting a rough idle. Car will idle then shudder as if it wants to shut off, then it will "catch itself" idle some more then repeat. Sometimes will "hunt." Runs fine othewise. Could a bad intercooler hose contribute? The lower one looks like it''s degraded.
 

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If there is a vacuum leak yes. Any codes/check engine light? TB could probably use a cleaning and I would also check your PCV hoses and run a rubber glove test.
 

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My 03 did this for a while, was bad MAF due to dirty/oiled air filter. Also had bad/fouled PCV system. Get a dry air filter, check vacuum lines, and get a pierburg TCV from rockauto. Clean MAF WITH MAF cleaner.Make sure you pass glove test, You will be golden, I think.
 

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Discussion Starter · #4 ·
Thanks all. Replaced 2 intercooler hoses and cleaned MAF yesterday. One hose was damaged (small tear) right at the hose clip. Will see how she runs. Will do glove test. I am hoping I don't have to also clean the TB.
 
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