NetNews Usenet Archive 1992 #19/NN_1992_19.iso/spool/rec/autos/tech/12039

Internet Message Format | 1992-09-01 | 1.6 KB

Path: sparky!uunet!elroy.jpl.nasa.gov!swrinde!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!mmeeker
From: [e-mail] (Michael A Meeker)
Newsgroups: rec.autos.tech
Subject: 87 Grand Am backfiring
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Date: 1 Sep 92 23:11:34 GMT
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Hi,
     I have a question I hope someone can answer.  I have an '87 Pontiac
Grand Am with the 4 Tech engine.  Recently I have noticed that upon
deceleration I get a backfiring noise that sounds more like a problem
with a hole in the exhaust system.  I checked over the exhaust, muffler,
and manifold and it all seems to be in good shape.  Also it only does
this when the car is warm, it is quiet when I start the car up and for
the first 10 to 15 minutes of driving.  Does anyone know what this could
be, or what I can do to stop it?
     A friend of mine also had a problem similar to this in an '86
Grand Am.  She said that eventually it blew a hole in her exhaust and
when she took it to her mechanic he said something about a bad module.
Can anyone shed some light on this.  Is this a problem with the Grand
Am's?

Thanks

Mike

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