1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Stuttering, bangs and some kind of traction loss between 55 and 70 mph in Past Cadillac Vehicle Discussion; Hellooo My '93 Sixty Special had a totally wrecked catalytic converter (bits and pieces inside) when i bought the car. ...
- 08-24-13 06:00 PM #1
Stuttering, bangs and some kind of traction loss between 55 and 70 mph
My '93 Sixty Special had a totally wrecked catalytic converter (bits and pieces inside) when i bought the car. the ride home was more or less horrible as the car stuttered like hell. from time to time extremely loud bangs. i've replaced the catalytic converter and the ride became as it should in an instant - but not in certain situations. when i use cruise control between 55 and 70 mph and i drive towards a small hill and the cruise control has to apply 'some power' to hold the speed, the car starts stuttering again. this also happens when i slooowly accelerate between 55 and 70. as soon as i hit the gas pedal a bit more and the car shifts down the stuttering is gone.
could this still be related to the broken catalytic converter? (Bits of it stuck in the muffler?) The symptoms certainly are extremely similar, even the loud bang returned once. my guess is that a lower gear produces more exhaust pressure that forces its way throuhg - but i am just guessing
any help is highly appreciated
- 08-25-13 12:05 AM #2
Re: Stuttering, bangs and some kind of traction loss between 55 and 70 mph
Sounds like it may be time for plugs, wires, cap & rotor.
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