Question about Pontiac G6
Started with vibration at 55 mph or more, replaced brakes, rotors, lower A arms, rack and pinion, outer tire rode ends, discovered now that front wheels slightly wobble and vibrates car intensely even with car jacked up. Vibration progressively worse
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Posted on Jan 02, 2017
SOURCE: front end vibration
It sounds as though your car has two seperate problems. The first problem with the vibration that goes away when you let off the gas pedal is caused by a bad INNER CV joint. It only vibrates when you are accelerating because that is when the joint is under stress. Your vehicle has two axles, each with an inner and an outer joint. My suggestion is to have a competent shop determine which is the bad side and replace the entire axle. The second vibration which occurs at any speed is most likely cause by either a bad tire, or a bent rim.
Posted on Jun 05, 2008
SOURCE: I have front end vibration
just checked this out a while ago:
Wheel Hub Assemblies: Systems and Diagnosis of Worn Hub Assemblies & Bearings
Front wheel hub assemblies and bearings control the position of, and reduce the resistance of, vehicle wheels in contact with the pavement. When they fail, front wheels may not be kept in position and vibration and noise usually develop. Symptoms that normally develop as a result of these worn parts include:
Posted on Jan 02, 2009
Sounds a lot like a wheel balance problem, Does vibration go away over 55? In checking driveshaft joints...If you looked at them with the vehicle in park with the wheels on the ground, the shaft is "loaded" and cannot be correctly checked. To do this properly, vehicle should be in neutral with both rear wheels off the ground. Sometimes a joint can appear to be tight but still be bad. Check for traces of powdered rust around the rubber boots right where the end caps meet the cross on the inside. Any rust there indicates lack of grease and the likelyhood that the joint is frozen.
Check both balance and joints. Good luck.
Don't forget to rate my answer after you find the problem.
Posted on Mar 27, 2009
Jack up the front end and put stands under it and block rear wheels. Look at axle boots and see if they are cracked. Try turning wheel back and forth sharply and see if you can hear any clicking. Problem could be outer axle joints. If the boots are cracked or you hear a clicking noise you will have to replace the axle. The axle and boot come as a complete unit. Please let me know what you find out.
Posted on Apr 15, 2009
SOURCE: subaru vibration
I had similar problem with my '99 outback. Replaced the front half shafts and seemed much better. A few months later seemed to be comming back so replaced the driver side shaft again and the problem disappeared. I had put in rebuilt shafts and the driver side shaft was not rebuilt correctly.
Posted on May 01, 2009
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