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Fix_It_Man, Repair Supervisor
Category: Transmissions
Satisfied Customers: 17465
Experience:  ASE Master Certified, L! Advanced Level with over 20 years of experience.
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Buick Rendezvous CX: 2003 buick rendezvous FWD CX. Shakes under

Customer Question

2003 buick rendezvous FWD CX. Shakes under acceleration and misses 3rd gear on the upshift, but will catch 3rd on the way down.
Submitted: 2 years ago.
Category: Transmissions
Expert:  Fix_It_Man replied 2 years ago.
Hello, my name is Bobby. Thank you for the question. If this only occurs under acceleration it is almost always caused by a failing cv axle or a bad engine or transmission mount. These are common failures on this vehicle. Were these ever checked?
Customer: replied 2 years ago.
I have visually inspected the mounts myself and can't see any flaws (though I'm not an expert). My mechanic has never said anything about them during my annual state safety inspections. I have long suspected the CV joints. I have found what I believe to be CV joint grease flung around the underside of the engine compartment, but cannot find any damage to the CV boots. The location of the grease would suggest the inner CV joints are the cause of the mess.
Expert:  Fix_It_Man replied 2 years ago.
If you have some grease around there then it is getting past the clamp. This loss of grease may be affecting this.