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Old 01-09-09, 09:54 PM
Po Pimp Po Pimp is offline
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Cadillac(s): 92' Eldorado, 97 Catera
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Re: Small engine knock and low idle in park

The warm idle should be 450 RPM by federal mandate. This is a custom so I am not sure what to tell you there. Did you reuse the IAC valve from your 3.0L engine?

Is your AC or heater on when you hear the ticking?

Those Harrison V-5 compressors make a ticking sound directly proportional to RPMs on some cars.