Speedometer

Crazysupra · 06-30-2010, 11:43 AM

Drove her to work yesterday and backed her in garage. This morning jump in her to come to work and the speedometer didn't work. I never heard anything pop and it worked perfectly yesterday.

Does anyone had this happen??
What to look for??
Troubleshooting???

Thanks,

1991 Supra Turbo (auto)

batmmannn · 06-30-2010, 06:32 PM

I posted some info here not long ago on the speedo. It's in the forum, run a search there is a lot of info about the speedo available, common problem with the MKIII. Uses 3 cables, any one of them might be the problem, or it could be electrical. As I have not yet had a problem with mine I only read it briefly and reposted it here somewhere. Google it and you will find tons of info from other sites as well. Check this out maybe this will help

http://www.supras.com/06/techcenter/display.php?QID=29

Crazysupra · 06-30-2010, 07:12 PM

Great info. Thanks

cre · 07-02-2010, 05:15 PM

Some only use a two piece cable.

wstanek · 07-03-2010, 12:16 AM

there elecronic on newer vehicles right? dont the just have ANOTHER sensor?

Crazysupra · 07-03-2010, 01:20 AM

Sensor???? Where would it be???

batmmannn · 07-03-2010, 05:22 AM

My Dad has an MK3 that has been broken down at his house about as long as mine was. His Speedo just bounced but worked. Annoying to say the least.

Did my first AC evac and charge today. Went OK. My Ac is working. Should be interesting to see how long it lasts.

Cre, when I took off my compressor it had no oil. It was seized. Should I have assumed that the entire system would be dry or near dry of oil. I put about 4 ozs in the drier and the 4 in the compressor. I didn't want to go more in case there was a few ozs still in the condensor, lines and other parts of the system. Being that the compressor was bone dry should I have gone a full 10 ozs? My $9.99 AC compressor off ebay is working just fine and apparently not leaking.

Sight glass is not clear even after 3 cans of refrigerant. When the clutch disengages I see foam, when it reingages and is running I got a bubble or two about 180 psi on the high side and about 34 on the low side.

I did evacuate it down to -29psi and the vacume held fine for like an hour and a half before I went forward and charged it. What do you guys think?

What were you results? Should I have added more oil less?

Thanks

Green7mgte · 07-03-2010, 10:52 PM

holy repeat post batman!

ah haha..

batmmannn · 07-04-2010, 04:21 AM

Yeah sorry about that but I was hoping to get an answer quick on the oil. No such luck yet.

06-30-2010, 11:43 AM	#1
Crazysupra Stock Join Date: Jun 2010 Location: Decatur, AL Posts: 24	Speedometer Drove her to work yesterday and backed her in garage. This morning jump in her to come to work and the speedometer didn't work. I never heard anything pop and it worked perfectly yesterday. Does anyone had this happen?? What to look for?? Troubleshooting??? Thanks, 1991 Supra Turbo (auto)

06-30-2010, 06:32 PM	#2
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Speedo cable I posted some info here not long ago on the speedo. It's in the forum, run a search there is a lot of info about the speedo available, common problem with the MKIII. Uses 3 cables, any one of them might be the problem, or it could be electrical. As I have not yet had a problem with mine I only read it briefly and reposted it here somewhere. Google it and you will find tons of info from other sites as well. Check this out maybe this will help http://www.supras.com/06/techcenter/display.php?QID=29 __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile! Last edited by batmmannn; 06-30-2010 at 06:36 PM.

06-30-2010, 07:12 PM	#3
Crazysupra Stock Join Date: Jun 2010 Location: Decatur, AL Posts: 24	speedometer Great info. Thanks

07-02-2010, 05:15 PM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Some only use a two piece cable. __________________ 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 --->

07-03-2010, 01:20 AM	#6
Crazysupra Stock Join Date: Jun 2010 Location: Decatur, AL Posts: 24	speedometer Sensor???? Where would it be???

07-03-2010, 12:16 AM	#5
wstanek 3" Exhaust Join Date: Apr 2010 Location: Stoney Creek Posts: 178	there elecronic on newer vehicles right? dont the just have ANOTHER sensor?

07-03-2010, 05:22 AM	#7
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Speedo My Dad has an MK3 that has been broken down at his house about as long as mine was. His Speedo just bounced but worked. Annoying to say the least. Did my first AC evac and charge today. Went OK. My Ac is working. Should be interesting to see how long it lasts. Cre, when I took off my compressor it had no oil. It was seized. Should I have assumed that the entire system would be dry or near dry of oil. I put about 4 ozs in the drier and the 4 in the compressor. I didn't want to go more in case there was a few ozs still in the condensor, lines and other parts of the system. Being that the compressor was bone dry should I have gone a full 10 ozs? My $9.99 AC compressor off ebay is working just fine and apparently not leaking. Sight glass is not clear even after 3 cans of refrigerant. When the clutch disengages I see foam, when it reingages and is running I got a bubble or two about 180 psi on the high side and about 34 on the low side. I did evacuate it down to -29psi and the vacume held fine for like an hour and a half before I went forward and charged it. What do you guys think? What were you results? Should I have added more oil less? Thanks __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile! Last edited by batmmannn; 07-03-2010 at 05:27 AM.

07-03-2010, 10:52 PM	#8
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	holy repeat post batman! ah haha.. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

07-04-2010, 04:21 AM	#9
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Double post Yeah sorry about that but I was hoping to get an answer quick on the oil. No such luck yet. __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile!

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