Hi
I have a 1992 C4 coupe automatic and it starts and runs perfectly fine in drive. When I have the car shifted into overdrive which is how I've always driven it the car is fine until it's in 4th gear. Once in 4th and you start to put a "slight" load on it like a gradual incline or if I lift my foot off the gas then slowly accurate again. The car starts to sputter and vibrate possibly even misfire until it down shifts. Once in 3rd everything is fine again till the next time. I can't remember for sure but I think last year before I put it away it might have even backfired during one of these episodes.
Any ideas where to start on this or what to look for?
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I have a 1992 C4 coupe automatic and it starts and runs perfectly fine in drive. When I have the car shifted into overdrive which is how I've always driven it the car is fine until it's in 4th gear. Once in 4th and you start to put a "slight" load on it like a gradual incline or if I lift my foot off the gas then slowly accurate again. The car starts to sputter and vibrate possibly even misfire until it down shifts. Once in 3rd everything is fine again till the next time. I can't remember for sure but I think last year before I put it away it might have even backfired during one of these episodes.
Any ideas where to start on this or what to look for?
Sent from my iPhone using Tapatalk