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Unread 07-26-2008   #1 (permalink)
2000MustangGT is offline PONY Member

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Default Problems with reverse

i have a 2000 mustang gt with 83k miles and it has problems going into reverse. it grinds sometimes, wont even go into it sometimes, have to be dead stopped, and sometimes it works fine. Anyone know whats wrong? Is my trans going bad?
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Unread 07-26-2008   #2 (permalink)
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more than likely the syncros and blocker rings are shot, a shift fork is bent or a combo of all the above, pretty common problem...get it fixxed soon
 
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Unread 09-23-2008   #3 (permalink)
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I have the exact same problem with mine. I have to be at a dead stop and let the idle go down and still it doesnt want to go in. How much would it cost about to change all of that?

Thanks.
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Unread 09-23-2008   #4 (permalink)
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You really should stop completely before going into reverse anyway, not doing so puts a lot of unneeded wear on the parts, but Randy once again has it pegged. You can try adjusting the clutch, but it will usually show issues elsewhere if that the problem.
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Unread 09-23-2008   #5 (permalink)
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randy is always helpful on here.

its been working fine lately, but sometimes i'll just get in my car ,start it up and go to put it in reverse and it'll grind its kinda embarrasing when your around people and u go to put it in gear and it grinds but who cares? its not a big deal right now though
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Unread 09-24-2008   #6 (permalink)
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yeah but dont wait to long, as each time you "grind" your shearing off some metal and that gets in the fluid, bearings and other places....you might want to try and change the tranny fluid now, it could help
 
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Unread 09-24-2008   #7 (permalink)
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Randy's on fire again.

Unfortuantely the T45 had a design flaw which caused abnormal wear on the reverse syncro and blockers. It is also prone to jumping out of reverse. The design utilises a dual shift fork design and they are prone to being bent which causes uneven engagement when shifting. This uneven movement of the fork is what is wearing out your syncros prematurely.

Yes it can be fixed, but it is going to happen again. Whether it happens again while you own the car depends on how long you keep it.


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Unread 09-24-2008   #8 (permalink)
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I've been told that constant pressure on the shifter, like using it for an armrest can bend the shift forks. Like Randy, I'd try changing the tranny fluid, royal purple synchromax is awesome stuff, it may help.
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Unread 09-24-2008   #9 (permalink)
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yea i do have my hand on the shifter quiet often
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Unread 09-25-2008   #10 (permalink)
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Quote:
Originally Posted by racin366 View Post
I've been told that constant pressure on the shifter, like using it for an armrest can bend the shift forks. Like Randy, I'd try changing the tranny fluid, royal purple synchromax is awesome stuff, it may help.

Actually it doesn't bend the forks but it does wear out the fork pads which causes the fork to engage the hub at an angle which leads to failure. Each fork has 3 pads on it. The pads "ride" in the hub on the sliders. When you rest your hand on the shifter, it causes the pads to ride constantly on the edges of the hub which wears them out.

Bent shift forks are the result of improper hard shifting. If you power shift your car and the clutch air gap is not set correctly, then when you bang the gears, it puts undue stress on the forks themselves and that causes them to bend or break.



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Unread 09-25-2008   #11 (permalink)
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i think i power shifted the other day not meaning to. i pulled out of my neighbor hood and when i shifted to 2nd its went automatically into second after i pull it out of 1st a little
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Unread 09-25-2008   #12 (permalink)
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Quote:
Originally Posted by 2000MustangGT View Post
i think i power shifted the other day not meaning to. i pulled out of my neighbor hood and when i shifted to 2nd its went automatically into second after i pull it out of 1st a little

That's not what I meant by power shifting. I mean holding the gas pedal to the floor and not lifting while shifting. Slamming the shifter into the next gear with the gas pedal planted to the floor.
That's what destroys forks (and syncros)


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Unread 09-25-2008   #13 (permalink)
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o yea, but what was it that happened to me?
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Unread 09-26-2008   #14 (permalink)
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Quote:
Originally Posted by 2000MustangGT View Post
o yea, but what was it that happened to me?

Sounds like to short shifted it into the 2nd gear gate. The T45 gates are pretty close together so if you inadvertantly pulled it out of 1st towards 2nd and close enough to engage the 2nd gear gate, it went in by itself.



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Unread 09-26-2008   #15 (permalink)
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it was awesome too. it was like a quick as speed of light
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