rattle or grinding noise

Manifolds, flexpipe, catalytic converters, mufflers, hangers, piping, EGR etc.
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Topic author
rooster4
I am merely driving my van
I am merely driving my van
Posts: 12
Joined: Wed Jun 13, 2007 5:54 pm

rattle or grinding noise

Post by rooster4 »

I have 98 astro and at start up a rattle or grinding noise seems to come from near the cat . when i hit the cat with my hand I hear something moving inside . Is this broke or just a nusince? My wife is complaining. gas milage is still good at 20mpgs .
1998 astro
2006 cobalt
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Smiliesafari
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Joined: Sat Dec 02, 2006 12:34 pm
Location: Orlando, FL

Re: rattle or grinding noise

Post by Smiliesafari »

The element inside the cat has come lose. The only remedy that I know of is to replace the cat. My '96 did the same thing. The rattle was very annoying. \:D/
1996 Safari SLX Hotair balloon transport vehicle

Topic author
rooster4
I am merely driving my van
I am merely driving my van
Posts: 12
Joined: Wed Jun 13, 2007 5:54 pm

Re: rattle or grinding noise

Post by rooster4 »

I know this is very late to update, but I had a new Emco Cat installed for $180 and it solved the problem. When we took the old one off and shook it rattled.
1998 astro
2006 cobalt
User avatar

Smiliesafari
ASV Supporter
ASV Supporter
Posts: 2667
Joined: Sat Dec 02, 2006 12:34 pm
Location: Orlando, FL

Re: rattle or grinding noise

Post by Smiliesafari »

Common problem. Wifey happy? \:D/
1996 Safari SLX Hotair balloon transport vehicle
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