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Car Forum / Volvo Cars / February 2006V40 engine vibration
I have a 2000 V40 with about 65,000 miles on it. Purchased last year at about 50,000 miles. Since I've had it, it's had an engine vibration that makes various interior things buzz. It's most noticeable standing still at idle after a cold start, and it tends to diminish as the engine warms up. Lately it seems to have gotten a little buzzier. Not a lot, just a slightly perceptible increase in the buzz factor. There are no other symptoms. Power is normal, no new noises, no drivability issues. Where should I begin looking for a cause? Motor mounts maybe? Would put money on it being the mounts. Common problem and a regular item for the car unfortunately. Is yours a manual? John. > I have a 2000 V40 with about 65,000 miles on it. Purchased last year at > about 50,000 miles. Since I've had it, it's had an engine vibration that [quoted text clipped - 4 lines] > is normal, no new noises, no drivability issues. Where should I begin > looking for a cause? Motor mounts maybe? > Would put money on it being the mounts. Common problem and a regular item > for the car unfortunately. Is yours a manual? Automatic. I'm told there was no manual transmission option on US V40s in 2000. I've read of motor mounts being a common failure item on V40s, but haven't seen much detail on the symptoms or how to verify whether a mount is good or bad. At around $100 each, plus a day of knuckle busting, I want to be fairly certain I have the right diagnosis before I start replacing parts. > I have a 2000 V40 with about 65,000 miles on it. Purchased last year at > about 50,000 miles. Since I've had it, it's had an engine vibration that [quoted text clipped - 4 lines] > is normal, no new noises, no drivability issues. Where should I begin > looking for a cause? Motor mounts maybe? First point of call- the top steady bar attached to the cam cover. These are well known for breaking up and giving metal to metal contact. Tim.. > First point of call- the top steady bar attached to the cam cover. These > are > well known for breaking up and giving metal to metal contact. What's a steady bar? Vadis shows four motor mounts (they call them "engine pads"), a pair of front and rear lowers attached to a removable member that runs front to back under the engine, and two uppers on either side. The only one that's readily visible is the upper one on the passenger side and the rubber looks intact. I can stick a pry bar into it and rock the engine front to back a little, but I don't know what I should be looking for in that regard. > > First point of call- the top steady bar attached to the cam cover. These > > are [quoted text clipped - 7 lines] > to back a little, but I don't know what I should be looking for in that > regard. Yup- thats the one. If you are sure it is fine, then check the bottom mounts, which are hydraulic and oil filled. Occasionally I have seen these burst- and the engine resting on the cross member. You should see oil around the failed mount in this case though. Tim.. > Yup- thats the one. If you are sure it is fine, What should I look for to determine if it's fine? > then check the bottom > mounts, which are hydraulic and oil filled. Occasionally I have seen these > burst- and the engine resting on the cross member. You should see oil > around > the failed mount in this case though. Just crawled under and had a look. No oil present, but the front mount, which was the only one I could see, looks similar to the upper one, a hunk of rubber inside a steel ring. |
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