speedodometer don't work

suprabahamut · 06-08-2008, 03:00 PM

The speed Odometer don't work at all. Is it just the speed sensor or do I need to look some where else? What do I need to look at. It just had a motor swap , but the same motor went into it 7mge.

suprabahamut · 06-08-2008, 11:33 PM

I was looking toady under the hood and the speed control device that has a cable going to the throttle is broken. I always thought it was only for cruse control. Does this have anything to do with the speed odometer? Or is it just the speed sensor on the transmission? Also I forgot to say it is a manual transmission.

j3pz · 06-09-2008, 12:38 AM

speedo cable hooked up? did it break?

SideWinderGX · 06-09-2008, 12:55 AM

theres three pieces to the speedometer cable: one long cable (connected to the dashboard), one short cable (next to the exhaust), and an adapter piece (fits into the transmission).

look underneath the car on the passenger side, right above the transmission brace (which the exhaust passes under). there should be an adapter piece right there, screwed into the tranny. this leads up towards the engine, connects to the shorter piece, and eventually connects to the longer piece.

take them apart one at a time and try to spin the little prongs sticking out of them by hand. if you cant spin them, replace it.

i had to replace all 3. the short cable is 10 bucks from toyota, the adapter and long piece are both 100 each.

the long cable requires you (no other way) to take out the dashboard. its not terrible to do though. the other two pieces take no more than 5 minutes to replace.

make sure none of the cables are hitting the exhaust, or are in a spot that will let them get too hot...it will break the cable again.

suprakid91 · 06-09-2008, 11:31 AM

i had the cable break off inside the housing almost at the bottom of the adapter piece. so would i have to get the 100 dollar one?

SideWinderGX · 06-09-2008, 03:51 PM

if that piece that broke was supposed to be inside the adapter, then yes. buy it used if you can lol.

i would also test the lower and upper cables (its super easy) to see if they broke as well...you never know. just try and turn the insides...if they dont turn no matter what, its broken. theyre not too hard to turn.

supradaddy0803 · 06-09-2008, 04:03 PM

Thats kinda weird out of the both mark 3's that I have had I replaced that adapter both time and it cost 12 dollars from the stealership. You want just the pig tail not the whole cable. I am sure the 100 dollar one is the whole cable have them look at their diagram a little closer there is another part number there.

suprabahamut · 06-09-2008, 04:20 PM

Can you put some pictures up of what they look like? Also when you say cables are they cables that work mechanically or wire type like a harness?

ebang · 06-09-2008, 04:25 PM

I just replaced my speedo cable the lower (short piece) is about 20.00 CDN. and the long one that goes into the dash is 180.00 CDN...from Toyota.

supradaddy0803 · 06-09-2008, 05:33 PM

I will try to find a pic of it. It is a mechanical cable that is keyed at the end that goes into the tranny. The reason why it breaks it because of the turn put on it and the fact of it getting dry. Just remember to lube the cable by putting a little oil behind the connection before the pig tail and the movement of it will carry the oil up.

06-08-2008, 03:00 PM	#1
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	speedodometer don't work The speed Odometer don't work at all. Is it just the speed sensor or do I need to look some where else? What do I need to look at. It just had a motor swap , but the same motor went into it 7mge.

06-09-2008, 12:38 AM	#3
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	speedo cable hooked up? did it break? __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat

06-09-2008, 12:55 AM	#4
SideWinderGX 3" Exhaust Join Date: Feb 2007 Location: Syracuse, NY Posts: 203	theres three pieces to the speedometer cable: one long cable (connected to the dashboard), one short cable (next to the exhaust), and an adapter piece (fits into the transmission). look underneath the car on the passenger side, right above the transmission brace (which the exhaust passes under). there should be an adapter piece right there, screwed into the tranny. this leads up towards the engine, connects to the shorter piece, and eventually connects to the longer piece. take them apart one at a time and try to spin the little prongs sticking out of them by hand. if you cant spin them, replace it. i had to replace all 3. the short cable is 10 bucks from toyota, the adapter and long piece are both 100 each. the long cable requires you (no other way) to take out the dashboard. its not terrible to do though. the other two pieces take no more than 5 minutes to replace. make sure none of the cables are hitting the exhaust, or are in a spot that will let them get too hot...it will break the cable again. __________________ my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it.

06-09-2008, 11:31 AM	#5
suprakid91 3" Exhaust Join Date: Oct 2007 Location: minnesota Posts: 119	i had the cable break off inside the housing almost at the bottom of the adapter piece. so would i have to get the 100 dollar one? __________________ 91' 7m-gte, sold

06-09-2008, 03:51 PM	#6
SideWinderGX 3" Exhaust Join Date: Feb 2007 Location: Syracuse, NY Posts: 203	if that piece that broke was supposed to be inside the adapter, then yes. buy it used if you can lol. i would also test the lower and upper cables (its super easy) to see if they broke as well...you never know. just try and turn the insides...if they dont turn no matter what, its broken. theyre not too hard to turn. __________________ my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it.

06-08-2008, 11:33 PM	#2
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	I was looking toady under the hood and the speed control device that has a cable going to the throttle is broken. I always thought it was only for cruse control. Does this have anything to do with the speed odometer? Or is it just the speed sensor on the transmission? Also I forgot to say it is a manual transmission.

06-09-2008, 04:03 PM	#7
supradaddy0803 12psi boost Join Date: May 2006 Location: Athens, TX Posts: 308	Thats kinda weird out of the both mark 3's that I have had I replaced that adapter both time and it cost 12 dollars from the stealership. You want just the pig tail not the whole cable. I am sure the 100 dollar one is the whole cable have them look at their diagram a little closer there is another part number there. __________________ 1987 supra NA 5 speed 1JZGTE swap Tokico Illumina 2 and Eibach springs Tokico pillow blocks Suspension Techniques front and rear sway bar HKS super dragger cat-back exhaust plus test pipe Greddy Profec B spec 2 boost controller HKS type 1 turbo timer Supra sport solid steel drive shaft Walboro 255 fuel pump JZA70 Front end mod 18" Volk Racing AV3 18x8.5 front 18x9.5 rear

06-09-2008, 04:20 PM	#8
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	Can you put some pictures up of what they look like? Also when you say cables are they cables that work mechanically or wire type like a harness?

06-09-2008, 04:25 PM	#9
ebang 3" Exhaust Join Date: Feb 2007 Location: Canada Posts: 99	I just replaced my speedo cable the lower (short piece) is about 20.00 CDN. and the long one that goes into the dash is 180.00 CDN...from Toyota. __________________ 1987 N/A Targa 5 speed no mods as yet

06-09-2008, 05:33 PM	#10
supradaddy0803 12psi boost Join Date: May 2006 Location: Athens, TX Posts: 308	I will try to find a pic of it. It is a mechanical cable that is keyed at the end that goes into the tranny. The reason why it breaks it because of the turn put on it and the fact of it getting dry. Just remember to lube the cable by putting a little oil behind the connection before the pig tail and the movement of it will carry the oil up. __________________ 1987 supra NA 5 speed 1JZGTE swap Tokico Illumina 2 and Eibach springs Tokico pillow blocks Suspension Techniques front and rear sway bar HKS super dragger cat-back exhaust plus test pipe Greddy Profec B spec 2 boost controller HKS type 1 turbo timer Supra sport solid steel drive shaft Walboro 255 fuel pump JZA70 Front end mod 18" Volk Racing AV3 18x8.5 front 18x9.5 rear

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