Auto Trans Issue

Irish_Mechanic · 01-10-2008, 09:08 PM

My auto trans gives me intermittent trouble. Occasionally, when i put the shifter to 'low gear' to come off the line, it lags like its in second, then drops itself into neutral and revs. Anyone else experience this?

I'm not a trans guy, so i'm sorta outside my experience...

chino1123 · 01-02-2010, 10:44 AM

Quote:

Originally Posted by Irish_Mechanic

My auto trans gives me intermittent trouble. Occasionally, when i put the shifter to 'low gear' to come off the line, it lags like its in second, then drops itself into neutral and revs. Anyone else experience this?

I'm not a trans guy, so i'm sorta outside my experience...

is the neautral switch sensor is locate in the passenger side nest to the trasmission stick

Green7mgte · 01-04-2010, 03:25 AM

Quote:

Originally Posted by chino1123

is the neautral switch sensor is locate in the passenger side nest to the trasmission stick

is that a question or an answer. just a bump into the thread, what is my shift lock overide button for? sorta along the lines of the thread

chino1123 · 01-04-2010, 04:06 AM

Quote:

Originally Posted by Green7mgte

is that a question or an answer. just a bump into the thread, what is my shift lock overide button for? sorta along the lines of the thread

that is and answer your car problem is that neutral swich sensorh control the shift in your car i have the same problem in my and that i was the problem

Green7mgte · 01-04-2010, 04:16 AM

Quote:

Originally Posted by chino1123

that is and answer your car problem is that neutral swich sensor

what does the neutral switch sensor do?

chino1123 · 01-04-2010, 04:25 AM

Quote:

Originally Posted by chino1123

that is and answer your car problem is that neutral swich sensorh control the shift in your car i have the same problem in my and that i was the problem

go to the web this well help you http://www.cygnusx1.net/Supra/Library/TSRM/MK3/ that show you what to do

Krem · 01-05-2010, 02:53 AM

I had an automatic 89 mercury topaz that I used to drive in similar manner... so it'd hold the lower gears longer rather than shifting when only at 2500-3000 rpm. Sadly... several months later, she would not shift past 2nd when I had her in drive... it started slow, slipping in the lower gear longer if I kept my foot on the peddle... if I let up and it did shift, as soon as I reapplied the gas, it'd downshift back to the lower gear..

I ended up ditching the PoS... the car cost me $1100 and at the time, I was young and dumb, figured the tranny was fuxed (which could be for all I know) and there was no way I was going to pay even a grand to have it repaired... not like it's a mk3 supra or something worth keeping... either way, since then, I've tried to avoid driving my automatic manually like that.. even tho the supra could really benefit in acceleration for me that way (mine is NA auto, not turbo manual, I could use any help I can get in acceleration.)

cre · 01-05-2010, 03:47 AM

Is the overdrive engaged? heh.

Neutral start switch is a starter lockout, it ensures the transmission is in either Neutral or Park when starting the car. It is not wired in to the ECT as far as I can tell: http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=107

Check for diagnostic codes: http://www.cygnusx1.net/Supra/Librar...aspx?S=AT&P=13

01-10-2008, 09:08 PM	#1
Irish_Mechanic Intake Join Date: Jan 2008 Location: Lancaster PA Posts: 45	Auto Trans Issue My auto trans gives me intermittent trouble. Occasionally, when i put the shifter to 'low gear' to come off the line, it lags like its in second, then drops itself into neutral and revs. Anyone else experience this? I'm not a trans guy, so i'm sorta outside my experience...

01-05-2010, 03:47 AM	#8
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Is the overdrive engaged? heh. Neutral start switch is a starter lockout, it ensures the transmission is in either Neutral or Park when starting the car. It is not wired in to the ECT as far as I can tell: http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=107 Check for diagnostic codes: http://www.cygnusx1.net/Supra/Librar...aspx?S=AT&P=13 __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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01-05-2010, 02:53 AM	#7
Krem 3" Exhaust Join Date: Sep 2009 Location: Las Vegas Posts: 167	I had an automatic 89 mercury topaz that I used to drive in similar manner... so it'd hold the lower gears longer rather than shifting when only at 2500-3000 rpm. Sadly... several months later, she would not shift past 2nd when I had her in drive... it started slow, slipping in the lower gear longer if I kept my foot on the peddle... if I let up and it did shift, as soon as I reapplied the gas, it'd downshift back to the lower gear.. I ended up ditching the PoS... the car cost me $1100 and at the time, I was young and dumb, figured the tranny was fuxed (which could be for all I know) and there was no way I was going to pay even a grand to have it repaired... not like it's a mk3 supra or something worth keeping... either way, since then, I've tried to avoid driving my automatic manually like that.. even tho the supra could really benefit in acceleration for me that way (mine is NA auto, not turbo manual, I could use any help I can get in acceleration.)