Won't go above 45 MPH

[olredalert]

Mike,,,It sounds like the catalytic convertor is plugged. I would go there first..........Bill S

[enio45]

Mike, exhaust related.........

[TDW]

Fuel filter plugged or collapsed?

[Mike]

I knew you guys would have some answers....thanks for the info. I'll forward your suggestions and see if he can fix the problem.

Mike

[YENKO DEUCE REGISTRY]

I had this happen on an '86 Trans Am - it was a blocked cat converter. It's easy to test, just drop the pipe - and go for a noisy test ride

BTW: eventually, it will get worse to the point that it won't run at all - especially after it gets hot. The cat will completely block off the exhaust until it cools down.

[budnate]

[ QUOTE ]
Mike,,,It sounds like the catalytic convertor is plugged. I would go there first..........Bill S

[/ QUOTE ]

ditto....

[scuncio]

Gotta be the plugged cat...I remember doing a cool 70...60...50...40mph on I-75 in my '85 Parienne...ugh.

[mssl72]

I gotta chime in on the plugged CAT. My sisters '87 Buick had the same symptoms. The CAT was choking the life out of it. It was like a new car when it got replaced. And it was a lot cheaper than rebuilding the engine.

[olredalert]

-------I knew you had to be from California when I saw the words "had it replaced" in your post. LOLOLOLOL!!!.......Bill S

[Lynn]

If you want to do a quick check without pulling a pipe, just start the car and let it idle. Put your hand behind the tail pipe and feel the exhaust. If it is NOT plugged, you will feel the pulsing of the exhaust. If you have an exhaust restriction, there will be no pulse, just smooth hot air as if escaping from a balloon.