[Mike4570]

HI gang, I'm a new member, Hope I'm doing this right..... Have a 1989 Caddy 4 door Deville with 121000 miles 4.5 engine.
The problem is a strange vibration. When I'm doing 65 MPH and I accelerate slowly to 70 MPH I hear and feel a growling vibration from the front of the car. My mechanic 'thinks' it's engine mounts. But this repair costs more arms and legs than I can spare right now and I need some verification or other ideas from the experts. At first they said it was tires so I put new tires on it and I still have the problem. It did need new tires, by the way. Thanks in advance for any help you can give.

Mike in Arizona

 

[MMNineInchNails]

welcome

motor mounts is my opinion.

 

[davesdeville]

Well if it only happens while accelerating slowly in the 65-70 range, just stay above or below that range. My moms Volvo has the same kinda problem, but it happens at 65-90 mph, and freeway speeds here are 75 so it's kinda a pain in the ass to go 91 (cars max anyway) or 64 everywhere. But since you don't want to spend the money, just keep it out of the speed range..

 

[kcnewell]

You might give the C.V. joints a look....

 

[HollywoodHicks1]

Mounts

I'd strongly say that it is the motor mounts. Those problems are common in Cadillacs.