Rear motor mount

[Soufkackicustom]

My cb9 has a bad shake, but only in reverse. Yes it's automatic. I read somewhere that it has some weird set up for the rear motor mount that would cause this. Is there any simple way to fix this?

[dj_ender]

My cb9 has a bad shake, but only in reverse. Yes it's automatic. I read somewhere that it has some weird set up for the rear motor mount that would cause this. Is there any simple way to fix this?

There's a vacuum valve, similar to the IAB valve, that's hooked to the mount. The hoses could be bad, the valve could be bad, hoses disconnected, or the mount has failed.

[Soufkackicustom]

Well, I had rebuilt the entire suspension, and replaced the power steering rack, so there's a good chance I broke the line, I've just noticed it getting worse. It's fine in drive, or park. Guess I need to get it on the lift soon and look. Is there any way to bypass the vacume line? And dose it have anything to do with the charcole canister, because it has a broken nipple and I capped the line.

[Jarrett]

They're independent of each other. Don't necessarily assume you damaged it, though. They just fail with age so commonly. Especially if the car has had transmission problems as well.

[Soufkackicustom]

never had any tranny problems I know of. i do know its annoying and I need to fix it. it sounds like my exhaust is rattling off, so I ricer pat the gas like Iam reving up a 5sp in reverse so it dosent do it. if Iam on the throttle , it dosent shake

[Bad_dude]

never had any tranny problems I know of. i do know its annoying and I need to fix it. it sounds like my exhaust is rattling off, so I ricer pat the gas like Iam reving up a 5sp in reverse so it dosent do it. if Iam on the throttle , it dosent shake

How's your front mount? When I had a mild shake and it's worse in reverse. I replaced the front mount and put inserts in and the shake is gone.

[Soufkackicustom]

It appears to be good, but since it's easy to get to, Ill try that first.