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Discussion Starter #61
been a while since iv posted about my clunkin problem...but its still happening
as of now the car has been to:
1-Nissan Dealership
1-Infiniti Dealership
2-Mechanics
While my car was at these places, parts replaced included CV joint, upper control arm, sway bar end links and bushings, new shocks, engine and tranny mounts, plus two retapped crossmemeber bolts. None of these things fixed the problem, and both dealerships and mechanics are "out of ideas"

now heres what iv been concerned with...
my crossmember does not sit flush with the chasis:
as you can see in the pic below, the cross member sits lower of the driver's side, which is also the side that the clunking is coming from.

these next pics compare the driver's side bolt to the passenger side:


the cross memeber does not sit evenly or flushly against anything

also, when i start my car when its been sittinhg for a bout a day or so, i hear and feel the clunk as the engine turns over. then i can rev the engine a couple times and i will get the same clunk as when im goin over bumps, and then eventually subside.

why is my cross member like this?
could it be causing any problems?
what does it mean that i hear the clunk when turning the engine over?

by now im certain its not supension related.
and when i hit a big bump on the passenger side, it will set the clunk off on the driver side.
but the little bumps on the driver side will cause the clunk.

anyone with any ideas...please post up!
 

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:eek: Looks like they could have been cross threaded. Make sure they are tight. I usually deal with b13/14 cross member bolts and theyare much older. Yours shouldn't strip coming out, but I'd check.
 

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did you inspect the old bolts for metal shavings and as well the new ones..... (y did it need to be re-tapped anyway?)... i recommend that you return it to the shop thaT RE- tapped these holes and have em fix it RIGHT..... on my previous car (eclipse) the cross member held 1 tranny mount.... so if it is the same w/ the G (i have to check mine)...then maybe......the source of the clunking

p.s. 1st instance u start your car.... the engine and tranny will move a bit as well as going over bumps.......so if there was a mount in the the loose crossmember ...... it will cause it to chatter/clunk.............anyways......GUuDLUCK
 

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Discussion Starter #64
i guess i didnt explain myself properly.
the first time i took it to the dealership, they found that two of the crossmember bolts were stripped before they touched anything. prior to bringing it to this dealership, no one had toached the cross member before. so we assumed that the cross member was slapping against the frame...but it wasnt.

im assuming its an engine/tranny mount still.
i dont believe the rear engine mount has been toached.
is that mount near the drivers side foot space? because thats were i hear and feel all the movement and clunking from.
 

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i got the smae clunk noise....i htink its from my cai so i put in some pipe pading around the hole were the cai goes into the fneder & i still got the noise....njpriema....did u slve ur issue yet??
 

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any solutions here? i have a clunking when turning hard to the right (uk car) so my passenger side is dodgy. i have replaced the top link but to no effect. this is most apparent when i am turning hard right and going up a hill it seems to pronounce the effect.

i have had both CV boots changed in last 12 months and it doesnt seem to be coming from them;/

cant get undre my car too easily but it could be a stabiliser link i believe.
 

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Replace the complete LCA's. And you seem to be in luck, they seem to be sourced out of the UK too! Take a look At the link below. Post #25 and on... You get the complet LCA with a new ball joint and one or two of the other bushings for cheap! I know where I'd order mine from when I need to replace them!

http://www.g20.net/forum/showthread.php?t=58069&page=2&pp=20
 

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Discussion Starter #69
enohand said:
i got the smae clunk noise....i htink its from my cai so i put in some pipe pading around the hole were the cai goes into the fneder & i still got the noise....njpriema....did u slve ur issue yet??
nope still clunking away!

nickg07 said:
any solutions here? i have a clunking when turning hard to the right (uk car) so my passenger side is dodgy. i have replaced the top link but to no effect. this is most apparent when i am turning hard right and going up a hill it seems to pronounce the effect.

i have had both CV boots changed in last 12 months and it doesnt seem to be coming from them;/

cant get undre my car too easily but it could be a stabiliser link i believe.
we seem to have 2 different problems, b/c when i turn hard to the R or L,
the clunking either completely goes away, or is significantly reduced. in gonna
have my steering column and linkage checked out once this semesters over.
that solved the problem for another member...
 

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Oh yeah! Stabilizer links can contribute to a clunking noise too! After I replaced mine, the noise went away! Here's a pic of what I ordered through JustinP10 @ everythingg20.com. Basically, for me, even after postage, currency conversion &duties I still paid 1/2 of what my local Canadian Stealership wanted to charge me!
And quite easy to replace too! Just jack up one side of the car (front end) at a time, remove the wheel, and it's right there! Just a note, after I ordered these, I soon learned about the ES stabiliser link bushing options. So I ended up not using the two stock rubber bushings you seen in the top of the picture, and went with the ES bushings.

 

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njprimera said:
^^^ yup i ordered the same thing + the chasis bushings from justin a while
ago in the hopes it would solve the problem. no luck for me though
Then you might want to look at replacing either the complete LCA's (see link to other thread above) or try replacing the ball joints first. Again, in another thread, someone claimed success installing P10 ball joints onto P11 LCA's. Ah! Here's that thread. Go to post #31 and on.
 

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Sorry njprimera! I just missed reading your earlier posts. When they played around with the cross member, were the rubber isolator grommets in place? There is one for reach of the four bolts. If they're not there, then that can be a potential source of the clunking. I bought a set so that I can replace them when I replace my motor mounts. Sorry no pics (yet - left my camera in the car) But the p/n's I have (for P11's that is) are "11248-51E09" [2 req'd] & "11248-51E01" [2 req'd]. They were like $2-4 ea.
 

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Hmmm, then maybe you need to replace the Steering rack rubber bushings. Check out this thread. Ignore the thread title, it was a mistake. As long as you have a M/T , then these might do the trick. And cheap too. Just a pain to get in if you don't have the car on a hoist IMO.
 

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I am in the process or replacing the front crossmember bushings. I was experiencing some noise myself. My back end is clunking as well.
What my mechanic concluded is that..
-The front crossmember needs bushings, because there is a strong vibration sending over to the radiator support that creates a screeling/clanking sound.
as for the back
-Rear sway bushings and stabilizer links are needed.
I'm not sure if this is definate, but i'll look into it some more and help figure out the problem.
 

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I say go back and retrace your steps... its possible maybe something wasn't put together correctly when you rebuilt your front suspension. Or put in backwards... maybe a bolt or something. Check to make sure nothing is broken... like springs or spring seats or anything. Make sure mounts are tight and really retrace your steps. Its gotta be something, because it occurred after you rebuilt the front end. Oh, and about the dealers being out of ideas... man take it back... a good dealer will work with you until the problem is fixed...
 

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Discussion Starter #77
FINALLY FUCKIN FIXED!!!
went into Infiniti yesterday morning, and i got it back today.
they replaced both lower control arms (which means all new
bushings too). the bushings were shot and control arms were
damaged because of the severe abuse theyv been taking.

the ride is 100x better now. it feels like i have an entirely
new suspension. the ride is smooth, stable, and much
tighter over bumps. its even steadier at higher speeds

anyway, thank you to everyone who has helped me out!
hope this can help some of you guys that are having similar
problems.
 

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It's BACK!

NJP, cool man!

But my clunking is back after 9 months of non-clunking.

I don't think this was the case when it was last happening, but it seems to only happen when the car is warm. My mechanic seems to think it's due to the motor mounts (and I know they're shot), but I'm not so sure....

What do you all think?
 
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