Has anybody before had the issue of the speedometer not working?
-Mines will go up to 20mph but then die down...
Any thoughts on the probem?

My odometer did the same thing a year ago. I had an extra speedometer cable & i replaced it. Worked fine since then..

There's a chance the speedometer drive gear could be going bad. You can replace the plastic gear and sleeve without dropping the transmission.
P/N 33404-16010 - Speedo-sleeve sub-assembly ~$28 from Toyota
P/N 33403-19135 - Speedo-Driving gear sub-aseembly ~$33 from Toyota **Note: 19-tooth plastic gear for GTS

Special thanks to Red or OldSkewlToy for the P/N's on the old forum. One of them had a walkthrough that included the P/N for the metal gear inside the transmission that drives the speedometer gear and how to replace it.

KonaTrueno723 wrote:My odometer did the same thing a year ago. I had an extra speedometer cable & i replaced it. Worked fine since then..

where'd you find an extra speedo cable from? can you buy them for a decent price? i was wondering the same thing as the OP, i changed out the gear in the trans to the gts one, and mine still reads incorrectly

daveskatesallday wrote:

KonaTrueno723 wrote:My odometer did the same thing a year ago. I had an extra speedometer cable & i replaced it. Worked fine since then..

where'd you find an extra speedo cable from? can you buy them for a decent price? i was wondering the same thing as the OP, i changed out the gear in the trans to the gts one, and mine still reads incorrectly

It was an extra one i kept around from my other GTS. If you could find a good used one,might find it here in the forum classifieds from someones part out 86..or check craigslist & such..i think there's one on eBay right now for $45 bucks

I don't think these are genuinely made & sold by Toyota anymore

KonaTrueno723 wrote:

daveskatesallday wrote:

KonaTrueno723 wrote:My odometer did the same thing a year ago. I had an extra speedometer cable & i replaced it. Worked fine since then..

where'd you find an extra speedo cable from? can you buy them for a decent price? i was wondering the same thing as the OP, i changed out the gear in the trans to the gts one, and mine still reads incorrectly

It was an extra one i kept around from my other GTS. If you could find a good used one,might find it here in the forum classifieds from someones part out 86..or check craigslist & such..i think there's one on eBay right now for $45 bucks

I don't think these are genuinely made & sold by Toyota anymore

mYBE JUNKYARD?

KonaTrueno723 wrote:

daveskatesallday wrote:

KonaTrueno723 wrote:My odometer did the same thing a year ago. I had an extra speedometer cable & i replaced it. Worked fine since then..

where'd you find an extra speedo cable from? can you buy them for a decent price? i was wondering the same thing as the OP, i changed out the gear in the trans to the gts one, and mine still reads incorrectly

It was an extra one i kept around from my other GTS. If you could find a good used one,might find it here in the forum classifieds from someones part out 86..or check craigslist & such..i think there's one on eBay right now for $45 bucks

I don't think these are genuinely made & sold by Toyota anymore

thanks i'll look into it when the time comes!

80's Hatchi has a GTS speedo cable fs for $45 here in the classifieds..check it out!

Just tryin to help out!