Clunk Diagnosis Help..., Thought it was fixed, but noooo, couldn't be that easy!! |
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Clunk Diagnosis Help..., Thought it was fixed, but noooo, couldn't be that easy!! |
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Mar 26 2012, 09:15 AM
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#1
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Member Group: Members Posts: 295 Joined: 6-August 11 From: Everett, Wa Member No.: 13,409 Region Association: Pacific Northwest |
1st, a little backstory...
I had a fellow teener drive my 75 2.0 a few weeks back, and he commented that my gear lever was moving waaaay too much when he accelerated/decelerated, like my motor mounts were bad. I used the good Dr's motor mount test method (try lifting the engine with a jack while mount is all bolted up) and found that it wasn't the motor mounts (they held the engine down to the mounting bar just fine) but instead was the transmission mounts that were causing the issue, as the main nuts were barely finger tight, allowing the transmission to move around quite a bit. I tightened them up, and added lockwashers to prevent this from happening again... BUT NOW, I have a very solid, and quite concerning clunk coming from the passenger rear of the car, ESPECIALLY when I accelerate and decelerate. It seems that the changeing load on the engine/transmission is moving something, but I cant figure out what???!! It really doesn't make any noise when hitting bumps, or changing suspension loading (corners, sudden stops, etc.) ONLY when I push the gas, or let off the gas and let the engine drag slow the car down. I checked the "play" on the axle, doesn't seem extreme. I checked the shock mount, the transmission mount (mustache bar?), the points where the engine bar mounts to the body, etc... It sounds very solid, not body related, and I'm out of ideas and plan to crawl under her again today to try to figure it out... I'm concerned to the point where I can't drive the car again until I nail this down (literally (IMG:style_emoticons/default/laugh.gif) ) HELP!! Thanks in advance, Chris |
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Mar 26 2012, 05:00 PM
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#2
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Member Group: Members Posts: 295 Joined: 6-August 11 From: Everett, Wa Member No.: 13,409 Region Association: Pacific Northwest |
Was that the noise I heard when you were backing up? I was hoping not since we just got done with the transmission mounts. (IMG:style_emoticons/default/dry.gif) I'm going to have to agree with Mark on this. If it was that noise it sounded more like a CV noise to me. It's up on stands and I can't find anything. Gonna have the woman accelerate/decelerate with me listening near the area, that's the only thing I can think to try. I checked the axles, and they both will make contact with either the trans or the wheel/hub but only with quite a bit of force, should they not move that far with even a lot of force?? Thanks again everybody! (feel free to swing by Jon (IMG:style_emoticons/default/wink.gif) ) Chris |
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