What are the signs of a broken transmission or engine mount? - Ford Mustang Forums : Corral.net Mustang Forum

 
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post #1 of 8 Old 11-27-2005, 05:36 AM Thread Starter
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What are the signs of a broken transmission or engine mount?

My car jerks back and forth when even barely touching the gas, and when letting off (5spd). Once past that point I can accellerate fine. It's kind of a bump....bump..bump like something is bouncing around in there somewhere.

I looked visibly at the mount under the car and it didnt look broken, but I didn't take a screwdriver to it like the manual said.


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post #2 of 8 Old 11-27-2005, 05:38 AM
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my honest opinion says it isnt a motor or transmission mount. kinda sounds like the computer is unsure of the fuel/air mixture.


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post #3 of 8 Old 11-27-2005, 09:06 AM
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Quote:
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my honest opinion says it isnt a motor or transmission mount. kinda sounds like the computer is unsure of the fuel/air mixture.

I agree.But if your car has a few miles on it.Replacing the trany mount wouldnt be a bad idea.

Mine wasnt broken but had sagged almost a 1/4 of a inch..In 100k miles..It made a big difference in my car.

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post #4 of 8 Old 11-28-2005, 02:50 PM Thread Starter
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It doesen't seem like it's a computer issue because once i'm on the gas, or once i've let off it's fine. It feels like theres play in between somewhere.

Should I see a inch or so of mount between the crossmember and transmission? When I looked underneath, I couldnt see any mount in the middle, just the edges of it. Maybe mine has sagged too.

Is it true that the mount isn't replaceable separately, and that I have to replace the entire crossmember with the mount?

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UPR Short Throw Shifter
Hooker Max Flow Exhaust
High Flow Catted X-Pipe
3:73 FRPP gears
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Tokico Struts
LCA's
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Boston SL80 5 x 7 plate speakers
MTX Blue Thunder PRO 150 x 2 amplifier
Elemental Designs 11kv2's
Elemental Designs Nine.2 amplifier

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post #5 of 8 Old 11-29-2005, 04:24 PM
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[/QUOTE]Is it true that the mount isn't replaceable separately, and that I have to replace the entire crossmember with the mount[QUOTE]
No just got to ford and ask them for a transmission mount for a t45 transmission on a 99 GT. They should have it in stock if its a half way decent dealer.

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post #6 of 8 Old 11-30-2005, 05:07 AM
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Quote:
Originally Posted by Lowered99GT
It doesen't seem like it's a computer issue because once i'm on the gas, or once i've let off it's fine. It feels like theres play in between somewhere.

Should I see a inch or so of mount between the crossmember and transmission? When I looked underneath, I couldnt see any mount in the middle, just the edges of it. Maybe mine has sagged too.

Is it true that the mount isn't replaceable separately, and that I have to replace the entire crossmember with the mount?
Yes you have to replace the crossmember.On the 99ups its all one piece.But the whole thing is like 35.00~45.00 ..Most dealers stock them.

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post #7 of 8 Old 11-30-2005, 07:25 AM
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Quote:
No just got to ford and ask them for a transmission mount for a t45 transmission on a 99 GT. They should have it in stock if its a half way decent dealer.
LOL. That's funny. It depends largly on the dealership because Ford gets pissed at a parts department if they stock a part before selling 4 in a 1 year period and then they have to keep track of it because they can get into trouble for keeping anything they don't sell after 1 year. If The part's department doesn't follow the rules then ford starts taking away the discounts on parts to the dealer and that costs thousands of dollars a month.

Sorry for the story, but I bet 95 percent of ford dealerships in the country won't stock that mount. I'm a ford parts guy and I've never sold one yet. You will most likely have to order one. But in that case go aftermarket and get a poly mount.

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post #8 of 8 Old 12-01-2005, 08:55 AM
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Why dont you get under your car and take a look at your motor and tranny mounts ???
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