CV Joints

courtesy of Bob, The Auto Answer Man

Dear Bob,
I have a '90 Subaru Legacy that I've had both CV boots replaced on once. I think it was a little over a year ago. The CV boot has "blown" again on the driver side about 4 months ago. I've still been driving it all this time and it clicks and knocks when I turn the wheel. Tell me honestly how safe/unsafe this is. Could it lock up cold at any time and cause a disaster?...Could it just snap and fall out on the ground one day from lack of lubricant? I don't work and I don't usually drive any distances longer than 60 miles round trip max. I'm a stay at home mom, and I just bop around town in it usually. We have a friend who fixed it the first time and he says Subaru's are bad about those things going out. He is a mechanic and has his own business. He's not trying to make money off of us. What do you think?

Well Becky,
Generally, you could save the CV joint by just replacing the boot, if you do it right away. Since you have already noticed the "clicking" then it's only a matter of time till it falls apart. Since it was just done, you might want to look to see if there is anything down there that is rubbing against it or anything that might be causing the boot to break so pre-maturely.

Hi Bob,
We have a 1989 Eagle Summit with about 120,000 miles on it. This winter we have been noticing that when the engine gets warmed up and we turn the heater on, the temperature gauge starts going down slowly and cool air starts coming out of the vents. This lasts for up to 5 minutes; it gradually works back to warm air. What should my dh check? Is this a problem? Thanks.
Lee Ann

Lee Ann,
Sounds to me like either a faulty thermostat or a heater control valve.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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