How do you tell if the cat is clogged?
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Junior Member
Joined: Mar 2005
Posts: 53
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From: NM
Car: 89 camaro rs
Engine: 305 TBI
Transmission: 700R4
How do you tell if the cat is clogged?
I have an '89 RS with the 305 TBI and factory exhaust. It's running a little rough now, and it surges at idle/minimum throttle when warm and seems to be a little sluggish past 3500 rpm.
I would like to know how to check for a clogged cat.
Also, if I remove it all together, do I have to do anything other than weld a straight pipe in?
Thanx
white80zred89rs
I would like to know how to check for a clogged cat.
Also, if I remove it all together, do I have to do anything other than weld a straight pipe in?
Thanx
white80zred89rs
Member
Joined: Nov 2003
Posts: 389
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From: Maryland
Car: 1992 Camaro RS
Engine: 305 L03
Transmission: Borg-Warner WC T-5
Aren't all our 305 TBIs sluggish after 3500? If you cat is clogged first thing you should notice is horrible gas mileage, a drastic change from what you were previously getting. Second, if there is ratteling coming from the cat, or something of the sort.
Member
Joined: Jan 2005
Posts: 195
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From: East Texas area
Car: 92' B4C Camaro
Engine: 350
Transmission: G-Force T5
Axle/Gears: 3.73
What was said above. Also, if you can't hear it rattleing, some of the Honey comb could be lodged in the pipe. Causeing the Cat to Glow Red after you drive it awhile.
That is a very good indication your Cat is clogged!!
That is a very good indication your Cat is clogged!!
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