86 with bad shudder
12-17-2011, 04:27 PM
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86 with bad shudder
I have an 86 Extra Cab w/carb which shudders badly just before upshifting to the next gear. I have changed plugs, plug wires, distributer cap and rotor with no change. This is a bad shudder, the whole truck jerks. Could this be a vacuum leak?
12-17-2011, 05:15 PM
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Welcome to YotaTech.. are you sure its a driveability shudder with the engine. Could be a driveline vibration that becomes noticeable at 2500 to 3500 rpm, typical shift point rpm. Check u-joints, output shaft and pinion flange for excessive play.
Definately not a vacuum leak.
Definately not a vacuum leak.
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