94 Wrangler grinds shifting into 4th, HELP! Please
 

Hey Guys,

I just a bought a 94 wrangler and now it grinds when shifitng into
4th. What should I check before I refinance my house to pay a
professional to fix it. Any and all help or suggestions are greatly
appreciated. This is my first Jeep. Thanks

Kap

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

Make sure you have the proper gear lube in the tranny. Flush and bleed
the clutch hydraulic system.

If those are OK, you have a problem with the clutch or the tranny. Quick
test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
here). If it goes in quietly, good chance you have bad synchros on 4th
gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
the clutch is not disengaging fully. Look at bad master, slave, or
clutch plate.

Mileage and engine would help.

Kapper94 wrote:

> Hey Guys,
>
> I just a bought a 94 wrangler and now it grinds when shifitng into
> 4th. What should I check before I refinance my house to pay a
> professional to fix it. Any and all help or suggestions are greatly
> appreciated. This is my first Jeep. Thanks
>
> Kap
>

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

Make sure you have the proper gear lube in the tranny. Flush and bleed
the clutch hydraulic system.

If those are OK, you have a problem with the clutch or the tranny. Quick
test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
here). If it goes in quietly, good chance you have bad synchros on 4th
gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
the clutch is not disengaging fully. Look at bad master, slave, or
clutch plate.

Mileage and engine would help.

Kapper94 wrote:

> Hey Guys,
>
> I just a bought a 94 wrangler and now it grinds when shifitng into
> 4th. What should I check before I refinance my house to pay a
> professional to fix it. Any and all help or suggestions are greatly
> appreciated. This is my first Jeep. Thanks
>
> Kap
>

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

Make sure you have the proper gear lube in the tranny. Flush and bleed
the clutch hydraulic system.

If those are OK, you have a problem with the clutch or the tranny. Quick
test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
here). If it goes in quietly, good chance you have bad synchros on 4th
gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
the clutch is not disengaging fully. Look at bad master, slave, or
clutch plate.

Mileage and engine would help.

Kapper94 wrote:

> Hey Guys,
>
> I just a bought a 94 wrangler and now it grinds when shifitng into
> 4th. What should I check before I refinance my house to pay a
> professional to fix it. Any and all help or suggestions are greatly
> appreciated. This is my first Jeep. Thanks
>
> Kap
>

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

Make sure you have the proper gear lube in the tranny. Flush and bleed
the clutch hydraulic system.

If those are OK, you have a problem with the clutch or the tranny. Quick
test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
here). If it goes in quietly, good chance you have bad synchros on 4th
gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
the clutch is not disengaging fully. Look at bad master, slave, or
clutch plate.

Mileage and engine would help.

Kapper94 wrote:

> Hey Guys,
>
> I just a bought a 94 wrangler and now it grinds when shifitng into
> 4th. What should I check before I refinance my house to pay a
> professional to fix it. Any and all help or suggestions are greatly
> appreciated. This is my first Jeep. Thanks
>
> Kap
>

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

On Jun 26, 12:22 pm, RoyJ <spaml...@microsoft.net> wrote:
> Make sure you have the proper gear lube in the tranny. Flush and bleed
> the clutch hydraulic system.
>
> If those are OK, you have a problem with the clutch or the tranny. Quick
> test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
> the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
> here). If it goes in quietly, good chance you have bad synchros on 4th
> gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
> the clutch is not disengaging fully. Look at bad master, slave, or
> clutch plate.
>
> Mileage and engine would help.
>
>

Odometer reads 108k.
I'll try that tonight. If it acts like the bad Synchros scenario you
described, is something an average guy could do with a manual in his
gerage?

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

On Jun 26, 12:22 pm, RoyJ <spaml...@microsoft.net> wrote:
> Make sure you have the proper gear lube in the tranny. Flush and bleed
> the clutch hydraulic system.
>
> If those are OK, you have a problem with the clutch or the tranny. Quick
> test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
> the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
> here). If it goes in quietly, good chance you have bad synchros on 4th
> gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
> the clutch is not disengaging fully. Look at bad master, slave, or
> clutch plate.
>
> Mileage and engine would help.
>
>

Odometer reads 108k.
I'll try that tonight. If it acts like the bad Synchros scenario you
described, is something an average guy could do with a manual in his
gerage?

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

On Jun 26, 12:22 pm, RoyJ <spaml...@microsoft.net> wrote:
> Make sure you have the proper gear lube in the tranny. Flush and bleed
> the clutch hydraulic system.
>
> If those are OK, you have a problem with the clutch or the tranny. Quick
> test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
> the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
> here). If it goes in quietly, good chance you have bad synchros on 4th
> gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
> the clutch is not disengaging fully. Look at bad master, slave, or
> clutch plate.
>
> Mileage and engine would help.
>
>

Odometer reads 108k.
I'll try that tonight. If it acts like the bad Synchros scenario you
described, is something an average guy could do with a manual in his
gerage?

Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

On Jun 26, 12:22 pm, RoyJ <spaml...@microsoft.net> wrote:
> Make sure you have the proper gear lube in the tranny. Flush and bleed
> the clutch hydraulic system.
>
> If those are OK, you have a problem with the clutch or the tranny. Quick
> test: put tranny in neutral, clutch out, rev to 1500 rpnm or so. Push
> the clutch in, wait for 5 seconds, try to put it in reverse (no synchros
> here). If it goes in quietly, good chance you have bad synchros on 4th
> gear. $$$$$$ for tranny work. If it grinds the gears going into reverse,
> the clutch is not disengaging fully. Look at bad master, slave, or
> clutch plate.
>
> Mileage and engine would help.
>
>

Odometer reads 108k.
I'll try that tonight. If it acts like the bad Synchros scenario you
described, is something an average guy could do with a manual in his
gerage?

Re: Re: 94 Wrangler grinds shifting into 4th, HELP! Please
 

On Tue, 26 Jun 2007 19:40:21 -0000, Kapper94 <otten.kap@gmail.com>
wrote:

>I'll try that tonight. If it acts like the bad Synchros scenario you
>described, is something an average guy could do with a manual in his
>gerage?


You either have a AX5 if it is a 4 cyl or a AX15 if it is a 6 cyl. If
syncros are going bad I would opt for a complete rebuilt or swap out.
While they are not terrible trannies that are not great ones either.
The AX15 is the stronger of the two but still a MD tranny at best.
Starting around 2001 Jeep switched over to a NV3550 to replace AX15.
The only deferrence between the NV3500 and 3550 is that the 3550 is
designed as a direct bolt in replacement for the AX15 while the 3500
is not. If you whant to go the swap route you should look into finding
a used NV3550 as it is a better tranny than the AX15.
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