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89 3.0 dynasty



 
 
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  #1  
Old December 6th 05, 01:29 AM posted to alt.autos.dodge
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Default 89 3.0 dynasty

I have a 89 Dynasty, that seems like it is sucking air, it is very loud. It
comes and goes, when it is quiet it runs great. When it is sucking air
loudly, it hesitates, dies, and just has no power. It also sounds like it is
backfiring in the plenum. It is intermittent. The only codes that are pulled
are for the speed sensor. Its hard to exactly tell where the air sound is
coming from, but sounds like either the plenum or the air box. This did not
start until after I degreased the engine while it was cold. It ran fine up
until that point, the next day is when it started. Might be a coincidence
but, who knows.


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  #2  
Old December 6th 05, 08:03 AM posted to alt.autos.dodge
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Default 89 3.0 dynasty

Sounds like a vacumn leak around the intake manifold. Does the engine
idle race up as the computer tries to adjust when the problem is
evident? Try spraying carburetor cleaner along the plenum where it
meets the cylinder head. If the engine smooths out, you have identified
a leak. Remove intake plenum and install new intake manifold gasket.

 




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