Thumping when accelerating and turning... - Drive Accord Honda Forums
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post #1 of 3 Old 01-05-2010, 03:29 AM Thread Starter
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Thumping when accelerating and turning...

This isn't a Honda but I thought some of the problem solvers might have an idea...

A friend has a '99 Camry V6. The car has been well maintained (he's the original owner).

Over the last few months, there's a weird thumping/bumping noise coming from somewhere in front of the driver - maybe right on the other side of the firewall.

It only happens in one situation and can be reproduce at will. Accelerate, turn left, and if you quickly lift of the gas you hear and slight feel the thump/bump. Doesn't happen when braking or accelerating in a straight line.

I'm thinking - turning vehicle, body is flexing, something is secured as tightly as it should be. Maybe a rear engine mount or an exhaust hanger? Because it only happens when turning, I thought maybe CV joint or suspension component but there's non of the typical CV joint clicking and the boot isn't leaking. Maybe a loose strut mount?

Otherwise, the car drives fine - solid, steering is OK (for a 10 year old Camry ), no vibrations or anything else quirky.

Two mechanics and a Toyota dealer can't figure it out.

Any thoughts?

Current: 2016 Mazda 6 GT, 1989 Prelude Si

Come & Gone: 84 Accord HB, 91 CRX Si, 89 Accord LXi, 90 Accord LX Cpe, 94 Accord EX, 95 Accord EX Cpe, 98 Accord EX, 99 A4, 03 Accord EX-L, 91 Civic RT4WD Wagon, 06 Accord EX-L NAVI, 09 Mazda 6 iGT

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post #2 of 3 Old 01-05-2010, 06:19 AM
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Just a WAG but perhaps the tires are cupped. Esp if the tires were recently rotated. I had a similiar thing happen on the 99 Accord with Firestone Affinity tires. The shop said it appeared one of the belts in the tires snapped. Maybe rotate the tires and see if the problem still persists. My problem happened all the time but maybe your friends is in the beginning stages.

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post #3 of 3 Old 01-11-2010, 04:41 PM
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+ 1 for checking the tires. Check the axles you could have a c/v joint failing. Check to see if the axle boots are torn. If they are then more than likely dirt has damaged the joint... Most of the time it is more cost effective to replace the axle then replaced just the boots even of the c/v joint is still good.

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