gen 2 speedo - Toyota Nation Forum : Toyota Car and Truck Forums

phoenix639 · 02-08-2007, 10:01 PM

my speedometer has gone nutz, after about 40 mph the needle starts to jump back and forth, how can i track the cable?

TBayToyotaBoy · 02-08-2007, 10:05 PM

Don't worry about the cable, it's not the problem. At least, it's not this problem. You'll need to hit a scrap yard and buy a replacement guage cluster--preferably from a car with much lower mileage. Your speedometer mechanism (inside the guage cluster) is fried. Let me guess, mileage in the high 300,xxx km range? Or around 235,000miles?

I've had three Yotas blow a speedometer at almost exactly the same mileage...

monito · 02-08-2007, 10:42 PM

It may also be a problem w/ the speedo gear inside the tranny

atobe · 02-09-2007, 12:16 AM

could be an electrical problem mine did that at like 80k.. but only at 35-40 range fine everywhere else

IvanHoe · 02-09-2007, 03:20 AM

In general, I would suspect the problem to be the cable, but TBayToyotaBoy sounds like he's very familiar with this issue, so I would defer to him

TBayToyotaBoy · 02-09-2007, 10:22 AM

Well, there's a fairly easy way to diagnose between a cable/driven gear problem and a bad speedometer. If it's making ticking and scratching noises when the needle wobbles, the speedometer is gone. If it's relatively silent, check the other two items mentioned. Every speedo I've had pooch on me made these weird scratching noises (my current Rolla sedan is now making the noises--cold weather brings it on).

Doctor J · 02-09-2007, 01:54 PM

Separate cables at the joint in engine compartment near the firewall. Using oiler, add SAE 40 oil to the upper cable. This should thin the grease and free the cable core.

phoenix639 · 02-10-2007, 12:22 AM

Quote:

Originally Posted by TBayToyotaBoy

Well, there's a fairly easy way to diagnose between a cable/driven gear problem and a bad speedometer. If it's making ticking and scratching noises when the needle wobbles, the speedometer is gone. If it's relatively silent, check the other two items mentioned. Every speedo I've had pooch on me made these weird scratching noises (my current Rolla sedan is now making the noises--cold weather brings it on).

no noises that i can hear...but maybe thats because i always have my music up loud...

IvanHoe · 02-10-2007, 08:23 AM

Quote:

Originally Posted by phoenix639

no noises that i can hear...but maybe thats because i always have my music up loud...

Well there's an easy solution to that......turn the music DOWN!

fredk · 02-10-2007, 10:07 AM

i just had to put a new driven gear in my tranny after i checked the cable because it was missing a tooth and the needle bounced around