• Welcome to H4O! For a reduced ad experience, please login or register with the forum.

H3 Clunk when turning left

2007HummerH2

Well-Known Member
Messages
317
Location
Maine
Thanks f5Moab!
I'll double check everything......
The 3 hasn't been offroad yet. Just a DD for me, and the people before me.
 

skippy

Well-Known Member
Messages
471
Location
brisbane australia
I love the forum way of explaining noises That for the body mount picture doug I have a squeak in the rear right and I think it is a body mount going squeak
 

TXH3T

Well-Known Member
Messages
269
Location
Prescott AZ
I was going to say this sounded like what my truck was doing. Luis pointed out the problem to me when I dropped off his trailer. Cant for the life of me remember the part though. I guess if it is coming from the rear it is something else anyway. I understand it driving you crazy though. I would be pretty concerned if unexplained sounds were coming from my rear end :)
 

2007HummerH2

Well-Known Member
Messages
317
Location
Maine
UPDATE:
after going through mounts, bushings, etc. the noise appears to be my UCP popping when turning. took out all the bolts, cleaned, and tightened everything up. Test drove noise is still there, but does sound different now. It looks as though the UCP center section, that is pinched between the oil pan skid is flexing when turning, therefore causing the oil pan skid section to pop. It wouldn't be so bad if it wasn't so LOUD!
any suggestions? I think I will take off the center section of the UCP and see it the noise goes away........then go from there.
BigUnit: Have you received your CE yet? If so, would you mind taking a pic of the UCP for me.....want to make sure I'm missing any parts or spacers!
 

2007HummerH2

Well-Known Member
Messages
317
Location
Maine
Well after doing all the UCP and tightening everything down, I still had a noise in the rear that returned. Looked under Larry's rig and noticed that his rear body mounts have a plastic/rubber disc in between the floorboard and the mount itself. Mine has a metal washer in the rear wheel well, and two metal washers, back to back under the rear bumper. I'm thinking HHHhhhmmmm.
I gave them a good spray down last night with Fluid Film. That stuff is a great lubrication film, and also an anti corrosion preventative. Works great to keep the body from being eaten alive by the salt they use on the roads here, in the winter time.
The H3 still clunked this morning, and when I went out to make deliveries, it slowly started to go away. Seems to have disappeared again, just like when it rains outside. I'm going to run my truck with just the FF on the body mounts for the next few days and see if it stays away.....only issue is that it's going to rain cats/dogs tomorrow into Thursday, so it will be hard to tell.
Just out of curiosity, does anyone else have metal washers next to the floorboards of the H3? or am I the only one?
 

HUMMERADDICT

Well-Known Member
Messages
252
Location
NH
Well after doing all the UCP and tightening everything down, I still had a noise in the rear that returned. Looked under Larry's rig and noticed that his rear body mounts have a plastic/rubber disc in between the floorboard and the mount itself. Mine has a metal washer in the rear wheel well, and two metal washers, back to back under the rear bumper. I'm thinking HHHhhhmmmm.
I gave them a good spray down last night with Fluid Film. That stuff is a great lubrication film, and also an anti corrosion preventative. Works great to keep the body from being eaten alive by the salt they use on the roads here, in the winter time.
The H3 still clunked this morning, and when I went out to make deliveries, it slowly started to go away. Seems to have disappeared again, just like when it rains outside. I'm going to run my truck with just the FF on the body mounts for the next few days and see if it stays away.....only issue is that it's going to rain cats/dogs tomorrow into Thursday, so it will be hard to tell.
Just out of curiosity, does anyone else have metal washers next to the floorboards of the H3? or am I the only one?
What was involved in the spraying of the Fluid Film? I've been thinking about doing this for both my trucks. There is a shop down the road from me that offers this service for $200. I thought it was pretty steep given the price of the stuff is only $10-$20 a can.
 
Top