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| Cavalier Problem Diagnosis Got a problem you can't fix? We can help. |
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#1
03-12-2009, 06:03 PM
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97 2.4 cav sounds like a diesel engine
changed coils,housing, and plugs, car still sounds like a diesel. It started
doing this on a rainy day. Found crack in housing, replaced it, and car would not start. replaced tps,plugs,ignition module, it finally stated, but still sounds the same. 
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#2
03-12-2009, 07:25 PM
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Re: 97 2.4 cav sounds like a diesel engine
Is it actually dieseling (pre-ignition), or is it just the higher pitched part of the sound? Kinda like the tapping/ticking/rattling? I have a 98 G/A with the same engine/problem, and I'm pretty sure it's a problem with the intake camshaft/bearing(s)/tappet. Listen around with a stethoscope (or lacking one, a screwdriver) and see where the noise is the loudest. In my searching, I found that a cracked flexplate/flywheel can make a similarly described sound, should check that out too.
__________________
'04 Cavalier coupe M/T 2.2 Ecotec Supercharged 14 PSI boost, charge air cooler, 42# injectors Tuned with HP Tuners Poly engine/trans/control arm bushings Self built and self programmed progressive methanol injection system
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