7A problems again! Help?!

AstatenateZ · 02-04-2020, 03:37 PM

. Prob solved

AstatenateZ · 02-05-2020, 09:09 AM

.

SouthArk370Z · 02-05-2020, 11:26 AM

My guess is that you have a piece of trash caught in one of the passages. Only way I know to fix that is tear down the trans, clean it out, put it back together, and cross your fingers. A replacement trans would probably be cheaper.

If it were me and I decided to replace the trans, I'd tear down the old one to see if I could figure out what happened.

AstatenateZ · 02-05-2020, 02:00 PM

Quote:

Originally Posted by SouthArk370Z

My guess is that you have a piece of trash caught in one of the passages. Only way I know to fix that is tear down the trans, clean it out, put it back together, and cross your fingers. A replacement trans would probably be cheaper.

If it were me and I decided to replace the trans, I'd tear down the old one to see if I could figure out what happened.

Oh I’ll def take the trans apart to see what caused it. One of my Nissan tech friends said “I’ve been at Nissan 8 years. I’ve never seen a 6M or 7A trans fail.” He Even advised against getting a new / used trans. We ran codes and got nothing regarding TCM except a P0725 “engine speed” error due to the car being in neutral and driving as if it’s in first gear. But at this point I’ve broken a flex plate. Replaced. Had problems with it stuck in 3rd gear. And then replaced Valve body & solenoids. I put my TCM onto the new valve body and solenoids. And it’s been fine for months. But at this point I’m ready to just swap an entire new (to me) lower mileage trans. And have it programmed to my car if need be. To eliminate the confusion or future issues.

Ultrakla$$ic · 02-05-2020, 05:45 PM

Thats what I'd do, is swap out a good used one in the car. Its just nuts and bolts so should be easy. I wouldn't mess with the current one other than using it as a Trout line anchor!!!

AstatenateZ · 02-05-2020, 07:53 PM

.

jchammond · 02-05-2020, 10:44 PM

Be sure all electrical connections are solid; especially the grounds.
Hope all goes well

AstatenateZ · 02-06-2020, 09:37 AM

.

02-04-2020, 03:37 PM	#1 (permalink)
AstatenateZ Enthusiast Member Join Date: Nov 2014 Location: LR, Arkansas Posts: 428 Drives: 2012 370Z Rep Power: 11	370z weird shifting . Prob solved __________________ Last edited by AstatenateZ; 02-18-2020 at 10:02 PM.

02-05-2020, 09:09 AM	#2 (permalink)
AstatenateZ Enthusiast Member Join Date: Nov 2014 Location: LR, Arkansas Posts: 428 Drives: 2012 370Z Rep Power: 11	. __________________ Last edited by AstatenateZ; 02-18-2020 at 10:00 PM.

02-05-2020, 11:26 AM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	My *guess* is that you have a piece of trash caught in one of the passages. Only way I know to fix that is tear down the trans, clean it out, put it back together, and cross your fingers. A replacement trans would probably be cheaper. If it were me and I decided to replace the trans, I'd tear down the old one to see if I could figure out what happened. Rusty and AstatenateZ like this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

02-05-2020, 05:45 PM	#5 (permalink)
Ultrakla$$ic Base Member Join Date: Jun 2019 Location: Lowsyana Posts: 131 Drives: 2014 370z Touring A7 Rep Power: 10072	Thats what I'd do, is swap out a good used one in the car. Its just nuts and bolts so should be easy. I wouldn't mess with the current one other than using it as a Trout line anchor!!! AstatenateZ likes this. __________________ 2014 370z Sport Touring 7speed AT/QAB PEARL WHITE TRICOLOR/HKS MAX IV GT COILOVERS/VICREZ SPLITTERS/TEXAS DRIFTER SPOILER/GTR START BUTTON/AMSOIL OIL & FILTER/K&N DROP-INS

02-05-2020, 07:53 PM	#6 (permalink)
AstatenateZ Enthusiast Member Join Date: Nov 2014 Location: LR, Arkansas Posts: 428 Drives: 2012 370Z Rep Power: 11	. __________________ Last edited by AstatenateZ; 02-18-2020 at 10:01 PM.

02-05-2020, 10:44 PM	#7 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Be sure all electrical connections are solid; especially the grounds. Hope all goes well AstatenateZ and wideglideleon like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

02-06-2020, 09:37 AM	#8 (permalink)
AstatenateZ Enthusiast Member Join Date: Nov 2014 Location: LR, Arkansas Posts: 428 Drives: 2012 370Z Rep Power: 11	. __________________ Last edited by AstatenateZ; 02-18-2020 at 10:01 PM.

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