Question about Cars & Trucks
Let wife drive car and it came back knocking
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Posted on Jan 02, 2017
SOURCE: knocking noise from rear of car
There are two common
known problems with the rear suspension. One problem is the rear spring
colliding with the rear lower arm during rebound. This is caused by a
lack of support in the rear lower arm and the upper spring seat. The
solution is to fit a spring isolator sleeve to prevent the metal to
metal knocking. Another common problem is knocking of the top coils of
the springs. A revised rear lower arm spring seat has been fitted since
Posted on May 16, 2009
First, if the noise is from the upper part of the engine and is more of a tapping than a knock, likely you have a problem in the valvetrain, most often a bad lifter or worn rocker arm. If the noise is low, deep inside, the noise is from a bearing. This is generally accompanied by lower than normal oil pressure. Regardless of the underlying cause, correcting the cause will not stop the knock. To do that correctly, the engine needs to be removed and all crankshaft bearings and the crankshaft itself need to be replaced (crank can sometimes be "undercut" and thicker bearing shells can be used depending upon the amount of wear.) If caught very early, sometimes only one bearing can be replaced in-car, but in 99% of all cases I have ever seen, most will fail again, sometimes more severely if done this way.
Posted on Dec 10, 2009
I HAVE THE SAME PROBLEM I'VE BEEN DOING A LOT OF RESEARCH ON IT AND I THINK ITS GONNA BE THE BUSHINGS IN THE REAR KNUCKLE ASSEMBLY AND YOUR HAVE TO CHANGE THE WHOLE ASSEMBLY. I HAVEN'T TRIED IT YET BUT IF YOU CHECK BACK IN A COUPLE DAYS I WILL LET YOU KNOW
Posted on Jan 06, 2012
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