TT and 7AT P0744

W.O.W. 370Z · 12-01-2011, 01:57 PM

I searched online and this forum and couldn't find anyone with this trouble code on a 370z.

P0744: Torque Converter Clutch Circuit Intermittent

It seems to be either low fluid or a bad solenoid.

Anyone with any experience on this?

kosstick · 12-01-2011, 02:45 PM

I am a SC'D 7at and no problems no far. Is the car driving any differently. Also how many miles on your build?

W.O.W. 370Z · 12-01-2011, 02:54 PM

Quote:

Originally Posted by kosstick

I am a SC'D 7at and no problems no far. Is the car driving any differently. Also how many miles on your build?

About 3000 miles. I have GTM HD Tranny cooler.

The car shifts wierd from 3 to 4. No clunking noise or anything just revs up on its own before shifting from 3 to 4.

Found this video of the same symptom on an Altima.

http://www.youtube.com/watch?v=sgX7AYkKias

Notice in the video at :12. Thats what my 3-4 shift does. Started doing it recently.

kosstick · 12-01-2011, 03:35 PM

Does SAM have any thoughts?

azn370z · 12-01-2011, 03:37 PM

The shift from 3rd to 4th may be normal. Search for flare in the g37 forum.

W.O.W. 370Z · 12-01-2011, 03:44 PM

Quote:

Originally Posted by azn370z

The shift from 3rd to 4th may be normal. Search for flare in the g37 forum.

Will do.

W.O.W. 370Z · 12-01-2011, 03:44 PM

Quote:

Originally Posted by kosstick

Does SAM have any thoughts?

Haven't contacted him yet. That may be my next step in figuring this out.

SAM@GTM · 12-01-2011, 03:51 PM

How is you trans cooler mounted ? Is it upside down ?

Sam

W.O.W. 370Z · 12-01-2011, 03:54 PM

Quote:

Originally Posted by SAM@GTM

How is you trans cooler mounted ? Is it upside down ?

Sam

God I hope not.

No its not because the problem started recently.

SAM@GTM · 12-02-2011, 07:34 AM

Quote:

Originally Posted by W.O.W. 370Z

God I hope not.

No its not because the problem started recently.

Having the trans cooler mounted upside down is not a problem. But when you do , It will cause the fluid to drain back to the trans and that will give you a faulty indication of the fluid level in the trans, The system is not that big and all it takes is a half a quart low on fluid for the trans to act up .

Sam

W.O.W. 370Z · 12-02-2011, 11:27 AM

Quote:

Originally Posted by SAM@GTM

Having the trans cooler mounted upside down is not a problem. But when you do , It will cause the fluid to drain back to the trans and that will give you a faulty indication of the fluid level in the trans, The system is not that big and all it takes is a half a quart low on fluid for the trans to act up .

Sam

Thanks Sam!

kosstick · 12-02-2011, 12:49 PM

Quote:

Originally Posted by W.O.W. 370Z

Thanks Sam!

was it upside down??

W.O.W. 370Z · 12-02-2011, 12:53 PM

Quote:

Originally Posted by kosstick

was it upside down??

Im checking it today.

I don't think it is though.

jnaut · 12-04-2011, 04:57 PM

no its not mount upside down.

ChrisUR · 12-07-2011, 07:17 PM

we had this problem with 3 cars here in Germany - everytime it was the fluid level not being 100% accurate.

Check it and you will find that you miss a few ounces - in my car the tranny behaved very weird (revving up to rpm cut before shifting when in manual mode on the track). And I only missed like 6.7oz !

The 7AT seems to be very very fussy as is the whole car e.g. when it comes to brake fluid. I once missed like less than 0.5inch from the top mark at the reservoir and my trac and abs light came on.

So be careful to always fill every fluid up to the max / optimum mark.

Chris

12-01-2011, 01:57 PM	#1 (permalink)
W.O.W. 370Z A True Z Fanatic Join Date: Mar 2010 Location: Miami Posts: 1,757 Drives: 2010 Touring Sport Z Rep Power: 19	TT and 7AT P0744 I searched online and this forum and couldn't find anyone with this trouble code on a 370z. P0744: Torque Converter Clutch Circuit Intermittent It seems to be either low fluid or a bad solenoid. Anyone with any experience on this?

12-01-2011, 03:37 PM	#5 (permalink)
azn370z A True Z Fanatic Join Date: Nov 2008 Location: Seattle Posts: 1,722 Drives: z34 - R1 Rep Power: 490	The shift from 3rd to 4th may be normal. Search for flare in the g37 forum. __________________ 2010 k23 H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts

12-04-2011, 04:57 PM	#14 (permalink)
jnaut A True Z Fanatic Join Date: Dec 2009 Location: wpb, fl Posts: 1,146 Drives: 09 370z Rep Power: 17	no its not mount upside down. __________________ Best 1/4 mile 12.24 Best mph 114.5_______

12-07-2011, 07:17 PM	#15 (permalink)
ChrisUR Base Member Join Date: Jun 2010 Location: Germany Posts: 116 Drives: 370Z Black Edition Rep Power: 15	we had this problem with 3 cars here in Germany - everytime it was the fluid level not being 100% accurate. Check it and you will find that you miss a few ounces - in my car the tranny behaved very weird (revving up to rpm cut before shifting when in manual mode on the track). And I only missed like 6.7oz ! The 7AT seems to be very very fussy as is the whole car e.g. when it comes to brake fluid. I once missed like less than 0.5inch from the top mark at the reservoir and my trac and abs light came on. So be careful to always fill every fluid up to the max / optimum mark. Chris __________________ ProStreet N1 exhaust \| ProStreet N1 Y-Pipe \| STILLEN G3 Intake \| NST Pulley Kit EIBACH Pro-Springs \| EIBACH Pro-Spacers \| EIBACH Sway Bars \| SEIBON GT2 Rear Wing MOCAL Oil Cooler 25row\| STILLEN TransCooler \| STILLEN PS Cooler \| STILLEN Front Fascia

12-01-2011, 02:45 PM	#2 (permalink)
kosstick Track Member Join Date: Apr 2011 Location: Los Angles Posts: 668 Drives: G37 Rep Power: 15	I am a SC'D 7at and no problems no far. Is the car driving any differently. Also how many miles on your build?

12-01-2011, 03:35 PM	#4 (permalink)
kosstick Track Member Join Date: Apr 2011 Location: Los Angles Posts: 668 Drives: G37 Rep Power: 15	Does SAM have any thoughts?

12-01-2011, 03:51 PM	#8 (permalink)
SAM@GTM NOT AN ACTIVE SPONSOR. DO NOT BUY Join Date: Dec 2008 Location: CALIFORNIA Posts: 913 Drives: 370Z Rep Power: 17	How is you trans cooler mounted ? Is it upside down ? Sam