Thoughts on my issue?

Bshields22 · 03-03-2018, 02:32 PM

Hey fellas,

Got a problem. I have a 2012 7AT that I track. I notice towards the end of my heat the Z prevents me from downshifting OR I’m in full acceleration and it lurches forward with high rpms. Happened before my 34 row oil cooler. Still happens with my 34 row oil cooler. Engine temps never exceed 220. It gotta be heat because I’ll let it cool down half s lap and it’s fine. But after a while it starts back up again. Can’t be limp mode I don’t think? Tranny cooler needed? Bad tranny fluid maybe?

Let me know what you guys think. Car drives fine on the street and spirited canyon runs. Writing to you from buttonwillow right now. Ambient temps are about 55 degrees.

Thanks guy!

Ben

Memphis370Z · 03-03-2018, 06:11 PM

I think you may need a tranny cooler. I'd also replace the tranny fluid while you're at it.

Quicksilvers · 03-04-2018, 08:17 PM

A transmission cooler is a good investment and will prolong the life of your transmission. Heat is the number one killer of our 7AT transmissions.When you track your 370Z it exceeds normal heat conditions and it is making your transmission react the way it is. Also changing your transmission fluid would be a good idea too.

Bshields22 · 03-05-2018, 07:43 PM

Hey guys,

Figured out what it was. Fuel Starvation.

Filled up, drove much harder to really try and duplicate the problem. Worked out fine. Talked to a couple 370's on the track. They concurred, same symptoms happened for manual drivers too, same corner and everything. Hard right turns mixed in with the right amount of G's going left plus just under 3/4 a tank and it happens consistently.

Thanks for chiming in though!!

Rusty · 03-05-2018, 09:17 PM

Your description didn't give alot of details. Glad you found your problem.

Bshields22 · 03-22-2018, 04:51 PM

Quote:

Originally Posted by Rusty

Your description didn't give alot of details. Glad you found your problem.

LOL...ya... Kinda hard to explain verbally, much less over text

jchammond · 03-22-2018, 05:37 PM

An occasional drain & fill (about 4qts.) will make a world of difference on shifting;
may want to flush the 1st time.

03-03-2018, 02:32 PM	#1 (permalink)
Bshields22 Enthusiast Member Join Date: Nov 2012 Location: Anaheim, CA Posts: 422 Drives: 2012 Black 370Z-R Rep Power: 697	Thoughts on my issue? Hey fellas, Got a problem. I have a 2012 7AT that I track. I notice towards the end of my heat the Z prevents me from downshifting OR I’m in full acceleration and it lurches forward with high rpms. Happened before my 34 row oil cooler. Still happens with my 34 row oil cooler. Engine temps never exceed 220. It gotta be heat because I’ll let it cool down half s lap and it’s fine. But after a while it starts back up again. Can’t be limp mode I don’t think? Tranny cooler needed? Bad tranny fluid maybe? Let me know what you guys think. Car drives fine on the street and spirited canyon runs. Writing to you from buttonwillow right now. Ambient temps are about 55 degrees. Thanks guy! Ben __________________ 308 rwhp \| 252 rwtq \| Fast Intentions CBE 18" Res \| Stillen Gen 3 CAI \| EcuTek Tune \| Stoptech Slotted Rotors and Sport Pads \| KW V3 Coilovers \| SPL Upper Control Arms & Lower Rear Arms \| Seibon CF TS Hood \| Vossen CVT \| SPC Toe bolts

03-03-2018, 06:11 PM	#2 (permalink)
Memphis370Z A True Z Fanatic Join Date: Sep 2014 Location: Memphis Area Posts: 3,117 Drives: '09 MB Rep Power: 124433	I think you may need a tranny cooler. I'd also replace the tranny fluid while you're at it. SouthArk370Z, jchammond and Quicksilvers like this.

03-04-2018, 08:17 PM	#3 (permalink)
Quicksilvers A True Z Fanatic Join Date: May 2017 Location: Atlanta, GA Posts: 2,039 Drives: 2017 370z Rep Power: 25462	A transmission cooler is a good investment and will prolong the life of your transmission. Heat is the number one killer of our 7AT transmissions.When you track your 370Z it exceeds normal heat conditions and it is making your transmission react the way it is. Also changing your transmission fluid would be a good idea too. SouthArk370Z and jchammond like this.

03-05-2018, 07:43 PM	#4 (permalink)
Bshields22 Enthusiast Member Join Date: Nov 2012 Location: Anaheim, CA Posts: 422 Drives: 2012 Black 370Z-R Rep Power: 697	Hey guys, Figured out what it was. Fuel Starvation. Filled up, drove much harder to really try and duplicate the problem. Worked out fine. Talked to a couple 370's on the track. They concurred, same symptoms happened for manual drivers too, same corner and everything. Hard right turns mixed in with the right amount of G's going left plus just under 3/4 a tank and it happens consistently. Thanks for chiming in though!! __________________ 308 rwhp \| 252 rwtq \| Fast Intentions CBE 18" Res \| Stillen Gen 3 CAI \| EcuTek Tune \| Stoptech Slotted Rotors and Sport Pads \| KW V3 Coilovers \| SPL Upper Control Arms & Lower Rear Arms \| Seibon CF TS Hood \| Vossen CVT \| SPC Toe bolts

03-05-2018, 09:17 PM	#5 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,864 Drives: 2011 Nismo GM 6M Rep Power: 2684436	Your description didn't give alot of details. Glad you found your problem. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

03-22-2018, 05:37 PM	#7 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	An occasional drain & fill (about 4qts.) will make a world of difference on shifting; may want to flush the 1st time. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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