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clunk at takeoff

 
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Old 26 Jul 2015, 09:07 am
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Default clunk at takeoff

Time to time getting a clunk only when going from dead stop. Had my mechanic check it said a rear shock was bad. The shocks were replaced 15K ago. Got new shocks under warranty and put them in. Looked like one may have been binding. I think it fixed a noise I been working on on my hatch but still clunking. No noise when going over bumps only at takeoff. Did some tests to make sure not clutch seems OK. Thanks!
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Old 26 Jul 2015, 10:16 am
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Default Re: clunk at takeoff

when my car did that it was because i snapped the thick horizontal upper engine mount bolt in half.

can you replicate the sound by setting the parking brake/blocking the tires, and attempting to drive forward? if so, find a helper and track it down
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Old 26 Jul 2015, 04:01 pm
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Default Re: clunk at takeoff

Did that no sound which I hope eliminates the clutch and drive train. Took a crowbar to the engine and all seems OK. It is so tight in there hard to see anything.
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Old 26 Jul 2015, 05:00 pm
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Default Re: clunk at takeoff

I would suggest checking the upper and lower torque struts. They might have cracks making the clunking when the cracks opens up under torque.
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Old 27 Jul 2015, 02:48 pm
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Cool Re: clunk at takeoff

x2 Cruisers here with shifting into gear, and accelerating clunks.
All were engine mounts/torque struts.
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Old 27 Jul 2015, 05:17 pm
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Default Re: clunk at takeoff

Quote:
Originally Posted by wb2kki View Post
Time to time getting a clunk only when going from dead stop. Had my mechanic check it said a rear shock was bad. The shocks were replaced 15K ago. Got new shocks under warranty and put them in. Looked like one may have been binding. I think it fixed a noise I been working on on my hatch but still clunking. No noise when going over bumps only at takeoff. Did some tests to make sure not clutch seems OK. Thanks!
Have you narrowed it down to the front or rear? Since your original post mentions rear shocks, you might check the Watts Link.

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Old 28 Jul 2015, 08:09 am
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Default Re: clunk at takeoff

The torque struts look OK as best as I can see. Worth another look as it is prime suspect. I did check the watts link all looks good as well. I would hope my mechanic checked all this but maybe not. Going to be above 90F next few days so may not do it soon. I did notice my rocker panels on the bottom are rotting out so looks like another project coming up as well.
Getting hard to keep up.
I think the knock is coming from the front or middle of the car my mechanic said the rear shocks. They did fix my rattle of my hatch. Go figure??

Thanks all!!
Mike
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Old 29 Jul 2015, 02:36 pm
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Default Re: clunk at takeoff

I braved the hot weather today (not really that bad) and again checked what I could. The torque strut looks good. I did check the trans mount (manual) and see either a seam or a crack in the rubber. Not much showing. Can someone tell me how and how bad it is to remove. The service manual makes it look very simple but from experience I know it never is. Something usually does not what to come out and I don't what to brake a bolt.
Thanks all for all the help.
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Old 29 Jul 2015, 02:43 pm
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Default Re: clunk at takeoff

I'd be interested in what you find out. I have the same exact problem currently. Thought it might be my CV joints? But I don't hear the clunking when turning hard so I'm not sure if that's the problem.
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Old 29 Jul 2015, 02:46 pm
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Default Re: clunk at takeoff

my trans mount was shot. completely separated and torn. when i had it out the two pieces of it were fairly independent of each other. i re-used it anyways because i didnt really care, but mine made no strange sounds, and i doubt yours does either. i mean you can change it, but IMO it's highly highly doubtful it's your problem.
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