Vehicle: 98 TJ Sport w/auto trans.

The torque converter is not locking up when it's supposed to (over 40 MPH).
I have an error code (0740) which confirms it.

Is there a way to check the TCC solenoid without pulling the tranny pan?

 

Not really, without a scan tool. If you do have a scan tool, you can
command it on and off and listen for a click at the pan.

You will likely end up at a dealer or a trans shop to get it fixed. I
recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
more likely to just find and fix the problem, if possible.


Jerry


"MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
news:nS92c.470225$I06.5289811@attbi_s01...
> Vehicle: 98 TJ Sport w/auto trans.
>
> The torque converter is not locking up when it's supposed to (over 40
MPH).
> I have an error code (0740) which confirms it.
>
> Is there a way to check the TCC solenoid without pulling the tranny pan?
>
>

 

Not really, without a scan tool. If you do have a scan tool, you can
command it on and off and listen for a click at the pan.

You will likely end up at a dealer or a trans shop to get it fixed. I
recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
more likely to just find and fix the problem, if possible.


Jerry


"MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
news:nS92c.470225$I06.5289811@attbi_s01...
> Vehicle: 98 TJ Sport w/auto trans.
>
> The torque converter is not locking up when it's supposed to (over 40
MPH).
> I have an error code (0740) which confirms it.
>
> Is there a way to check the TCC solenoid without pulling the tranny pan?
>
>

 

Not really, without a scan tool. If you do have a scan tool, you can
command it on and off and listen for a click at the pan.

You will likely end up at a dealer or a trans shop to get it fixed. I
recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
more likely to just find and fix the problem, if possible.


Jerry


"MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
news:nS92c.470225$I06.5289811@attbi_s01...
> Vehicle: 98 TJ Sport w/auto trans.
>
> The torque converter is not locking up when it's supposed to (over 40
MPH).
> I have an error code (0740) which confirms it.
>
> Is there a way to check the TCC solenoid without pulling the tranny pan?
>
>

 

"Jerry Newton" <leaveme@lone.net> wrote in message
news:40492d7e_1@newspeer2.tds.net...
> Not really, without a scan tool. If you do have a scan tool, you can
> command it on and off and listen for a click at the pan.
>
> You will likely end up at a dealer or a trans shop to get it fixed. I
> recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
> more likely to just find and fix the problem, if possible.
>
>
> Jerry
>
>
> "MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
> news:nS92c.470225$I06.5289811@attbi_s01...
> > Vehicle: 98 TJ Sport w/auto trans.
> >
> > The torque converter is not locking up when it's supposed to (over 40
> MPH).
> > I have an error code (0740) which confirms it.
> >
> > Is there a way to check the TCC solenoid without pulling the tranny pan?
> >
> >
>
>
Thanks for the reply Jerry.

I studied the service manual last night and I think I can test it by
disconnecting the TCC plug on the tranny and applying 12V+ to the socket.

 

"Jerry Newton" <leaveme@lone.net> wrote in message
news:40492d7e_1@newspeer2.tds.net...
> Not really, without a scan tool. If you do have a scan tool, you can
> command it on and off and listen for a click at the pan.
>
> You will likely end up at a dealer or a trans shop to get it fixed. I
> recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
> more likely to just find and fix the problem, if possible.
>
>
> Jerry
>
>
> "MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
> news:nS92c.470225$I06.5289811@attbi_s01...
> > Vehicle: 98 TJ Sport w/auto trans.
> >
> > The torque converter is not locking up when it's supposed to (over 40
> MPH).
> > I have an error code (0740) which confirms it.
> >
> > Is there a way to check the TCC solenoid without pulling the tranny pan?
> >
> >
>
>
Thanks for the reply Jerry.

I studied the service manual last night and I think I can test it by
disconnecting the TCC plug on the tranny and applying 12V+ to the socket.

 

"Jerry Newton" <leaveme@lone.net> wrote in message
news:40492d7e_1@newspeer2.tds.net...
> Not really, without a scan tool. If you do have a scan tool, you can
> command it on and off and listen for a click at the pan.
>
> You will likely end up at a dealer or a trans shop to get it fixed. I
> recommend dealer. Trans shop is going to sell you an overhaul. Dealer is
> more likely to just find and fix the problem, if possible.
>
>
> Jerry
>
>
> "MaryJo Kopechne" <zoidberg@futerama.com> wrote in message
> news:nS92c.470225$I06.5289811@attbi_s01...
> > Vehicle: 98 TJ Sport w/auto trans.
> >
> > The torque converter is not locking up when it's supposed to (over 40
> MPH).
> > I have an error code (0740) which confirms it.
> >
> > Is there a way to check the TCC solenoid without pulling the tranny pan?
> >
> >
>
>
Thanks for the reply Jerry.

I studied the service manual last night and I think I can test it by
disconnecting the TCC plug on the tranny and applying 12V+ to the socket.