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Clunking at 2300-3100 rpms

2K views 4 replies 3 participants last post by  Thunder_Kat5 
#1 ·
hey guys i get a clunking in the rear in between 2300 - 3100 rpms. Is it the u-joint? or the motor mounts? it has an auto tranny
 
#2 ·
One help in diagnosing the problem would be to determine whether it actually is RPM - determined , is a transmission problem, or is determined by road speed. For example, does the noise occur at those RPMs in any gear (lock out the top gear - presumably 4th) and see what happens in 3rd at those RPMs., which may indicate that it is a driveline problem. Or does the noise happen in only one gear - possibly a transmission problem? To try to diagnose an engine mount problem rev the engine to that RPM range with the gearbox in neutral - if the noise occurs then that could be the issue.
 
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