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Originally Posted by Djana
Hey guys, im new to this and driving full stop.. anyway i have this weird problem... my car does maaaaaasive jolts when it nears 80km/h... i just checked the gear box its all fine, changed oil.. what the hell could that be ( i really dont want to buy a new gear box ) thanks in advance
djana  |
I'm guessing it's an automatic and 80km/hr is about 45 miles per hour, with about 100km/hr being about 62mph. Correct? if the problem happens at that specific speed, and not before that and not after that, that might be your first clue. check your engine mounts. Maybe as the motor revs up slightly higher in rpm, it's vibrating on the shock mounts. It's hard to guess without more info. Also check your EGR valve. It could be stuck in an open or closed position. If stuck in a closed position, your engine is running way too rich and it could be stalling or shuddering. It could be on the brink of stalling and that's why it jolts. When was your last tuneup? How many miles on the motor? It might be transmission related, or it might not be, but you need to describe the problem a bit more. Hope this helps.