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1999 jimmy 4x4 not working

 
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exman

External


Since: Dec 17, 2007
Posts: 3



(Msg. 1) Posted: Tue Dec 18, 2007 12:07 am
Post subject: 1999 jimmy 4x4 not working
Archived from groups: alt>autos>4x4>chevy-trucks (more info?)

Hi there,my front diff. on my Jimmy won't engage. The actuator is
working. The cable from the actuator is connected. The light on the
dash says it is working and the tansfer case is engaged. I can't turn
the drive shaft going to the front diff. when the t-case is engaged.
How do I test to see if the front diff. is working properly?

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Steve W.

External


Since: Oct 30, 2007
Posts: 203



(Msg. 2) Posted: Tue Dec 18, 2007 4:59 am
Post subject: Re: 1999 jimmy 4x4 not working [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

exman DeleteThis @cogeco.ca wrote:
> Hi there,my front diff. on my Jimmy won't engage. The actuator is
> working. The cable from the actuator is connected. The light on the
> dash says it is working and the tansfer case is engaged. I can't turn
> the drive shaft going to the front diff. when the t-case is engaged.
> How do I test to see if the front diff. is working properly?

If your sure that the actuator is working then try this test. Put it
into 4WD. Trans in PARK, Now jack up the RIGHT front tire so it is off
the ground. Try to rotate it.
If it rotates you have a problem with the cable,the shift fork or the
sleeve inside the disconnect, or possibly damage in the front
differential itself. To figure out if it is the shift fork or sleeve you
will need to take it apart.

The cable is only held into the shift fork with a small wire clip. That
clip may have broken. Or the cable itself may be bad. Not real hard to
check/change if it is the problem. First release the clip that holds it
to the vacuum actuator so the end is free. Then you need to jack up the
front end. Secure it with jack stands.
Now you need to decide if you want to just check the cable OR if your
going to check and replace it yourself?
To just check and see if it is connected you can unscrew the nut that
screws into the shift housing and see if the cable is still connected
inside. If not then look at the end and see if it is broken or worn. If
it is connected and doesn't pull out then the problem is farther in.

If the cable isn't connected and it appears OK then the clip is probably
bad. Dealer part.

Then remove the bolts that hold the shift cable housing to the axle.
Pull the cable/housing out and you will find the clip. Replace it and
reinstall the housing, bolts get torqued to 36 ft.lb. Then slide the
cable end into the hole and push it in until you feel it snap into
place. Then screw the housing nut back in (I put a small amount of never
seize on it just in case) Reconnect the upper end of the cable and test it.

http://snipurl.com/1vg86
For pictures and instructions on the shift cable.

--
Steve W.
Near Cooperstown, New York

Life is not like a box of chocolates
it's more like a jar of jalapenos-
what you do today could burn your ass tomorrow!

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exman

External


Since: Dec 17, 2007
Posts: 3



(Msg. 3) Posted: Tue Dec 18, 2007 10:07 pm
Post subject: Re: 1999 jimmy 4x4 not working [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Dec 17, 11:59 pm, "Steve W." wrote:
> ex....RemoveThis@cogeco.ca wrote:
> > Hi there,my front diff. on my Jimmy won't engage. The actuator is
> > working. The cable from the actuator is connected. The light on the
> > dash says it is working and the tansfer case is engaged. I can't turn
> > the drive shaft going to the front diff. when the t-case is engaged.
> > How do I test to see if the front diff. is working properly?
>
> If your sure that the actuator is working then try this test. Put it
> into 4WD. Trans in PARK, Now jack up the RIGHT front tire so it is off
> the ground. Try to rotate it.
> If it rotates you have a problem with the cable,the shift fork or the
> sleeve inside the disconnect, or possibly damage in the front
> differential itself. To figure out if it is the shift fork or sleeve you
> will need to take it apart.
>
> The cable is only held into the shift fork with a small wire clip. That
> clip may have broken. Or the cable itself may be bad. Not real hard to
> check/change if it is the problem. First release the clip that holds it
> to the vacuum actuator so the end is free. Then you need to jack up the
> front end. Secure it with jack stands.
> Now you need to decide if you want to just check the cable OR if your
> going to check and replace it yourself?
> To just check and see if it is connected you can unscrew the nut that
> screws into the shift housing and see if the cable is still connected
> inside. If not then look at the end and see if it is broken or worn. If
> it is connected and doesn't pull out then the problem is farther in.
>
> If the cable isn't connected and it appears OK then the clip is probably
> bad. Dealer part.
>
> Then remove the bolts that hold the shift cable housing to the axle.
> Pull the cable/housing out and you will find the clip. Replace it and
> reinstall the housing, bolts get torqued to 36 ft.lb. Then slide the
> cable end into the hole and push it in until you feel it snap into
> place. Then screw the housing nut back in (I put a small amount of never
> seize on it just in case) Reconnect the upper end of the cable and test it.
>
> http://snipurl.com/1vg86
> For pictures and instructions on the shift cable.
>
> --
> Steve W.
> Near Cooperstown, New York
>
> Life is not like a box of chocolates
> it's more like a jar of jalapenos-
> what you do today could burn your ass tomorrow!

Thanks for the input, tried everything. I think the front diff is #$@
%* Do you have any schematics on the front diff??
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Steve W.

External


Since: Oct 30, 2007
Posts: 203



(Msg. 4) Posted: Thu Dec 20, 2007 7:17 pm
Post subject: Re: 1999 jimmy 4x4 not working [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

exman.RemoveThis@cogeco.ca wrote:
> On Dec 17, 11:59 pm, "Steve W." wrote:
>> ex....RemoveThis@cogeco.ca wrote:
>>> Hi there,my front diff. on my Jimmy won't engage. The actuator is
>>> working. The cable from the actuator is connected. The light on the
>>> dash says it is working and the tansfer case is engaged. I can't turn
>>> the drive shaft going to the front diff. when the t-case is engaged.
>>> How do I test to see if the front diff. is working properly?
>> If your sure that the actuator is working then try this test. Put it
>> into 4WD. Trans in PARK, Now jack up the RIGHT front tire so it is off
>> the ground. Try to rotate it.
>> If it rotates you have a problem with the cable,the shift fork or the
>> sleeve inside the disconnect, or possibly damage in the front
>> differential itself. To figure out if it is the shift fork or sleeve you
>> will need to take it apart.
>>
>> The cable is only held into the shift fork with a small wire clip. That
>> clip may have broken. Or the cable itself may be bad. Not real hard to
>> check/change if it is the problem. First release the clip that holds it
>> to the vacuum actuator so the end is free. Then you need to jack up the
>> front end. Secure it with jack stands.
>> Now you need to decide if you want to just check the cable OR if your
>> going to check and replace it yourself?
>> To just check and see if it is connected you can unscrew the nut that
>> screws into the shift housing and see if the cable is still connected
>> inside. If not then look at the end and see if it is broken or worn. If
>> it is connected and doesn't pull out then the problem is farther in.
>>
>> If the cable isn't connected and it appears OK then the clip is probably
>> bad. Dealer part.
>>
>> Then remove the bolts that hold the shift cable housing to the axle.
>> Pull the cable/housing out and you will find the clip. Replace it and
>> reinstall the housing, bolts get torqued to 36 ft.lb. Then slide the
>> cable end into the hole and push it in until you feel it snap into
>> place. Then screw the housing nut back in (I put a small amount of never
>> seize on it just in case) Reconnect the upper end of the cable and test it.
>>
>> http://snipurl.com/1vg86
>> For pictures and instructions on the shift cable.
>>
>> --
>> Steve W.
>> Near Cooperstown, New York
>>
>> Life is not like a box of chocolates
>> it's more like a jar of jalapenos-
>> what you do today could burn your ass tomorrow!
>
> Thanks for the input, tried everything. I think the front diff is #$@
> %* Do you have any schematics on the front diff??

It is nothing special. Just an open differential with the left axle
split for the selector sleeve. The catch is that there is no cover to
pull so you can look inside. However you can also pull it out to work on
it and still be able to drive the vehicle.
http://snipurl.com/1vm48
Shows a breakdown image.

--
Steve W.
Near Cooperstown, New York
 >> Stay informed about: 1999 jimmy 4x4 not working 
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exman

External


Since: Dec 17, 2007
Posts: 3



(Msg. 5) Posted: Thu Dec 20, 2007 9:54 pm
Post subject: Re: 1999 jimmy 4x4 not working [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Dec 20, 2:17 pm, "Steve W." wrote:
> ex... DeleteThis @cogeco.ca wrote:
> > On Dec 17, 11:59 pm, "Steve W." wrote:
> >> ex... DeleteThis @cogeco.ca wrote:
> >>> Hi there,my front diff. on my Jimmy won't engage. The actuator is
> >>> working. The cable from the actuator is connected. The light on the
> >>> dash says it is working and the tansfer case is engaged. I can't turn
> >>> the drive shaft going to the front diff. when the t-case is engaged.
> >>> How do I test to see if the front diff. is working properly?
> >> If your sure that the actuator is working then try this test. Put it
> >> into 4WD. Trans in PARK, Now jack up the RIGHT front tire so it is off
> >> the ground. Try to rotate it.
> >> If it rotates you have a problem with the cable,the shift fork or the
> >> sleeve inside the disconnect, or possibly damage in the front
> >> differential itself. To figure out if it is the shift fork or sleeve you
> >> will need to take it apart.
>
> >> The cable is only held into the shift fork with a small wire clip. That
> >> clip may have broken. Or the cable itself may be bad. Not real hard to
> >> check/change if it is the problem. First release the clip that holds it
> >> to the vacuum actuator so the end is free. Then you need to jack up the
> >> front end. Secure it with jack stands.
> >> Now you need to decide if you want to just check the cable OR if your
> >> going to check and replace it yourself?
> >> To just check and see if it is connected you can unscrew the nut that
> >> screws into the shift housing and see if the cable is still connected
> >> inside. If not then look at the end and see if it is broken or worn. If
> >> it is connected and doesn't pull out then the problem is farther in.
>
> >> If the cable isn't connected and it appears OK then the clip is probably
> >> bad. Dealer part.
>
> >> Then remove the bolts that hold the shift cable housing to the axle.
> >> Pull the cable/housing out and you will find the clip. Replace it and
> >> reinstall the housing, bolts get torqued to 36 ft.lb. Then slide the
> >> cable end into the hole and push it in until you feel it snap into
> >> place. Then screw the housing nut back in (I put a small amount of never
> >> seize on it just in case) Reconnect the upper end of the cable and test it.
>
> >>http://snipurl.com/1vg86
> >> For pictures and instructions on the shift cable.
>
> >> --
> >> Steve W.
> >> Near Cooperstown, New York
>
> >> Life is not like a box of chocolates
> >> it's more like a jar of jalapenos-
> >> what you do today could burn your ass tomorrow!
>
> > Thanks for the input, tried everything. I think the front diff is #$@
> > %* Do you have any schematics on the front diff??
>
> It is nothing special. Just an open differential with the left axle
> split for the selector sleeve. The catch is that there is no cover to
> pull so you can look inside. However you can also pull it out to work on
> it and still be able to drive the vehicle.http://snipurl.com/1vm48
> Shows a breakdown image.
>
> --
> Steve W.
> Near Cooperstown, New York- Hide quoted text -
>
> - Show quoted text -

Thanks, MERRY CHRISTMAS
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