» View Question

travis ... 12/28/2012

1993 Chevrolet S10 Blazer Tahoe 6 Cyl 4.30L

Transmissions & Drivetrains

when idling the motor lopes and when engaging transmission into gear it jerks very hard

1 Answer


1beastlydude 2/1/2013

the lopeing is most likley due to a vacume leak, the transmission jerks hard becase the motor is at a higher than useual idel

hypothetically the transmission is designed to engage at 700rpms
you truck lopes from 600- 1200 , anything above the engageing speed will cause a jerk, and possibly damage

now with the vacume leak ( they can be hard to find) look over all vacume lines with a good flashlight and your fingers, look for dry rot, splits, disconnected lines . you may have a intake manifold leak


Answer this question

( characters left)

Follow Question

what's this?