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My transmission mount keeps breaking - 1999 Saturn SL

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Could be the lower track control arm bushes are worn out and the whole suspension is moving causing the gearbox to move and break the mount.Has this vehicle passed its anual mechanical vehicle inspection,where its put on metal plates in the floor and they move the suspension whilst a man is down the pit looking?'

Posted on Jul 29, 2010


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Posted on Jan 02, 2017


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2 Answers

Motor mounts on 98 sable keep breaking

is it possible that the tranny mounts allowing engine to torque up , and I have to ask how much torque are you putting on it to make it happen

Jul 29, 2015 | Cars & Trucks

1 Answer

VW Fox bar that goes from the front tire to the transmission fell off the transmission end,put it back on and Now when I put it in 1st gear it's in the spot where reverse should be what's the problem

This sounds like a broken motor mount. When a mount breaks, the engine and transmission (since they're bolted together) twist slightly on the remaining mounts under the hood. This slight movement causes the shifter inside the car (which has stayed in place) to be "off" slightly at the transmission end. It's a pretty easy fix for you mechanic.

Apr 17, 2015 | Cars & Trucks

3 Answers

How do i know which motor mount needs replacement

With car in drive/reverse and foot hard on brake if the engine moves when gas pedal is depressed and quickly released in both D&R, then that mount/mounts is defective...

Engine mount should be replaced if:

1) The hard rubber surface is covered with heat check cracks.

2) The rubber is separated from the metal plate of the engine mount.

3) The rubber is split through the center of the engine mount

The transmission case will crack or break if either engine mounts or transmission rear mount is broken...Here is a GM Service bulletin addressing the issue:


The transmission mount (see drawing) test:

>Raise and support the vehicle

>Raise the transmission/transaxle in order to remove the weight from the transmission/transaxle mount and create slight tension in the rubber.

Replace trans. mount if anyone of the three conditions listed above exist


I’m happy to help further over the phone at

Jan 02, 2015 | 2004 Chevrolet Impala

1 Answer

Why does trac off light keep coming on?

Probably a frayed ground wire, shared with other idiot lights (both check engine lights, brake system fault light, low oil level/pressure light) and the fuel pump. It is a multi-stranded wire that passes over the top of the transmission on the way back to the fuel pump mounted on the rear, center, of the fuel tank.. As the strands break due to flexing, various idiot lights intermittantly come on, until enough strands break to make them stay on, then finally stopping the fuel pump from pumping. Repair the frayed ground wire (most likely as it passes over the transmission), and everything goes back to normal.

Jun 30, 2014 | 2000 Chevrolet Cavalier

2 Answers

94 gmc 1500 transmission mount broken??

Let me get this clear.. you did not remove the cross member to drop the pan?? WHY?.. If you broke the bolt loose that is made into the transmission mount.. you need to be able to tighten the mount somehow.. if you can't tighten the mount, yes, you need to replace the mount . NEXT TIME - Use a jack stand under the front of the drive shaft to hold up the transmission.. this will make the job easier!!

Jul 09, 2017 | 1994 GMC Sierra

1 Answer

The car vibrates when in drive while at a stop. What would cause this ?

Vibration at idle brings to mind a few suspects:

transmission mount(s) broken/missing
transmission internally worn
motor mount(s) broken/missing

(1) transmission internally worn or transmission mount broken/missing - test this by shifting into neutral at the next stop light. If the vibration disappears when you disengage the transmission, then the transmission is the source of the vibration. You'll have to inspect the transmission mounts - if they're ok, then the transmission is internally worn and can no longer smoothly "slip" while idling in drive.
(2) motor mount broken/missing - also test this by shifting into neutral at the next stop light. If the vibration persists, then the transmission is exonerated, and the vibration is coming from (under) the engine. The rubber part of motor mounts commonly crack/break and or pop out and are lost.

A photo of the front motor mount for the 2003 Dodge Neon:


Oct 15, 2011 | 2003 Dodge Neon

1 Answer

I have a 1996 chevy cavalier I need to know how to get how to get the transmission mount off the car?

The big one on the pulley side of the engine is the hard one.
Start by getting the area as clean as you can. Get the car on jack stands. Position a jack under the transmission with as wide a board or plate as possible to avoid bending the pan. When you get the transmission supported take off the bolts/nuts and remove the defective mount.
You will also be able to see if the motor/transmission mount has separated when the jack first starts to lift the transmission/engine. Most mounts are "failsafe" and not allow the engine to fall out - but time and fluid break down the rubber. The engine rotation breaks the mount's rubber from the metal.

Oct 24, 2010 | 1996 Chevrolet Cavalier

1 Answer

I have replaced the cv shaft twice and it keeps breaking down! whats the most probable cause for this?

Try checking the transmission mount. A bad mount causes the transmission to move back and forth too much, causing unnecessary strain on the axle shaft. Also make the shaft is the right length. Too long or too short can also cause the shaft to break.

Oct 16, 2010 | 1992 Plymouth Grand Voyager

2 Answers


It's your motor & transmission mounts - relatively inexpensive.
Here is where you can get all 4 mounts for your car - AUTOMATIC transmission:
If you feel like reading, here is a bit of information about the function of these mounts on a car:

The purpose of engine motor transmission mounts: Most mounts made of metal and rubber, many newer model mounts are filled with hydraulic fluid, some advance hydraulic mounts come with electronic variable speed control by ECM engine control module. The basic design are the same to support between engine, transmission and subframe. They work hard to keep engine and transmission running smooth minimizing the amount of rattling and vibration from acceleration and stops. At the same time mounts are supporting all major power train systems keeping all mechanical components in balance level and position. Motor mounts are extremely important vehicle parts that stabilize and align a vehicle engine inside the engine compartment. Although small in size and relatively cheap in cost, motor mounts can cause tremendous mechanical problems if they break or go bad. Engine motor mounts are small parts that are used to stabilize and properly align a vehicle engine. When motor mounts go bad, they can cause a variety of symptoms, ranging from mechanical damage to excessive engine noise.

Sep 27, 2010 | 2004 Dodge Neon

1 Answer

Slight lopihg when taking off think it needs axle shaft adj

If you mean that the vehicle shakes under acceleration as if the whole drivetrain is rocking back and forth then you may be on spot with the axle shaft causing the issue. When an inner cv axle joint becomes damaged it can cause this. I am afraid there is no adjustment for the shaft/joint. It must be replaced. Be sure to inspect engine and transmission mounts as they are a common cause of the axle shaft failure. When the mounts wear or the rubber breaks/disintegrates it allows one side of the engine to sag causing the inner joint to bind and break internally. I have found that most often it is the transmission mount that causes the problem, but have seen engine mounts do it too.

Nov 18, 2009 | 2005 Dodge Caravan

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