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Eduardo Murillo Jr
Eduardo Murillo Jr, Auto Service Technician
Category: Car
Satisfied Customers: 2
Experience:  17 years mechanic
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1992 chevy: IS WHEN i excelerate BETWEEN 35 TO 65 IT VIBRATES

Customer Question

I HAVE A 1992 CHEVY SILVERRADO MY QUESTION IS WHEN I EXCELERATE BETWEEN 35 TO 65 IT VIBRATES?
Submitted: 11 years ago.
Category: Car
Expert:  Marc replied 11 years ago.


If this happens only during acceloration it sounds very much like a secondery iginion problem You need to check your spark plugs, Ignition wires , Distributor cap and rotor. also if no problems there check the ignition coil it self.
Expert:  Marc replied 11 years ago.


Customer: replied 11 years ago.
Reply to Marc's Post: when i have it in park and rev up the rpms this does not happen only when i'm moving.
Expert:  Marc replied 11 years ago.
still sounds like it could be a secondary ign problem

Unless you are not fully describing the problem
Expert:  Marc replied 11 years ago.


It was just brought to my attention that you may possibly have a bad U joint The best way to check this is to remove the drive shaft. And examine each joint carefully.
Customer: replied 11 years ago.
what is a ign??and do you think it could be a tranny problem?
Expert:  Marc replied 11 years ago.

ign = ignition


As I stated in the last post check for a bad U joint in the drive shaft (could be drive train related u joints do cause vibrations at cetain speeds and speed of vibration can change)



Expert:  Eduardo Murillo Jr replied 11 years ago.

Start it up, step on the brake, shift From Reverse to Drive a few times and listen for distinct clunk noise if so it would be your driveshaft U-Joint, you can also raise your vehicle secure it with jackstands and try turning driveshaft by hand and look for play at U-Joints also look for rust around U-Joint caps.


If you can see or hear any of these symtoms you have to replace the U-Joints.


If none of these symptoms are there then I would check your tires for missing balance weights when your tires are out of balance it will also make your vehicle vibrate at certain speeds.


It is not likely to be a transmission problem.

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