The hopes and dreams question.. Flame away - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

superflysr20 · 01-24-2013, 07:06 PM

Hey guys.... I just feel stupid asking this and I will find out anyways as I have to replace the part in question... HOWEVER!!

I Have a 93 auto that yes is being readied for summer swap fun including a manual conversion but in the meantime would like to have a working spare car as a just incase

The tranny is shifting and engaging fine when I turn the car on and about 5 mins after any type of driving will start to feel like its slipping and won't shift up gears... If I turn the car off for a min and back on it will work again for a few mins

The alternator is bad which I realized yesterday after I couldn't keep it started
So my question is...

Could a failing alternator cause electrical issues that somehow effects Ecu logic to the tranny sensors causing it to miss shift? Basically can I replace the alternator and magically have a working car and ponys and rainbows and shit??

Again flame away i know this is dumb but just wanted to have someone crush my dreams before I build up what if excitement while I wait for an alternator (if anybody has one for a ka get at me

Ilya · 01-24-2013, 07:36 PM

The auto is known to have the symptoms you are describing. Change to a new alternator and see if that fixes your problem....that is really the only choice you have at diagnosing this thing. how do you know you have a bad alternator?

oni jake · 01-24-2013, 09:50 PM

I bad alternator shouldn't trip the automatic transmission ECU. At least I've never heard of such a case. Since your car works fine at start up, I'm guessing it's a temperature issue.

Either way, you should fix the alternator now.

Nizzan4u2nv · 01-25-2013, 12:43 AM

When was the last time you changed the tranny fluid and/or filter?

01-24-2013, 07:06 PM	#1
superflysr20 Leaky Injector Join Date: Sep 2009 Location: bethesda md Age: 38 Posts: 138 Trader Rating: (4) Feedback Score: 4 reviews	The hopes and dreams question.. Flame away Hey guys.... I just feel stupid asking this and I will find out anyways as I have to replace the part in question... HOWEVER!! I Have a 93 auto that yes is being readied for summer swap fun including a manual conversion but in the meantime would like to have a working spare car as a just incase The tranny is shifting and engaging fine when I turn the car on and about 5 mins after any type of driving will start to feel like its slipping and won't shift up gears... If I turn the car off for a min and back on it will work again for a few mins The alternator is bad which I realized yesterday after I couldn't keep it started So my question is... Could a failing alternator cause electrical issues that somehow effects Ecu logic to the tranny sensors causing it to miss shift? Basically can I replace the alternator and magically have a working car and ponys and rainbows and shit?? Again flame away i know this is dumb but just wanted to have someone crush my dreams before I build up what if excitement while I wait for an alternator (if anybody has one for a ka get at me

01-25-2013, 12:43 AM	#4
Nizzan4u2nv Zilvia FREAK! Join Date: Oct 2003 Location: San Diego Age: 40 Posts: 1,226 Trader Rating: (3) Feedback Score: 3 reviews	When was the last time you changed the tranny fluid and/or filter? __________________

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01-24-2013, 07:36 PM	#2
Ilya Zilvia Addict Join Date: Jan 2008 Location: San Diego Age: 35 Posts: 712 Trader Rating: (2) Feedback Score: 2 reviews	The auto is known to have the symptoms you are describing. Change to a new alternator and see if that fixes your problem....that is really the only choice you have at diagnosing this thing. how do you know you have a bad alternator?

01-24-2013, 09:50 PM	#3
oni jake Zilvia Junkie Join Date: Sep 2007 Location: ---------- Posts: 416 Trader Rating: (5) Feedback Score: 5 reviews	I bad alternator shouldn't trip the automatic transmission ECU. At least I've never heard of such a case. Since your car works fine at start up, I'm guessing it's a temperature issue. Either way, you should fix the alternator now.