1994 Silverado, no 3rd, no speedometer

[MarkM66]

Brothers truck is having a problem.

1994 Silverado, 350, 4L60E.

It won't go into 3rd gear, and the speedometer stopped working, both at the same time.

Any ideals?

Thanks

 

[Smoky14]

Speedo drive broke and is jamming third.

 

[2oldtommy]

Check for a blown fuse as a first step. FWIW--Oldtommy

 

[vssjim]

Also after fuse check look for a speed sensor in the tail shaft housing. With out a scan tool you are kind of guessing. If wires on speed sensor look ok you can put one in they are cheap and easy. I also would guess the trans maybe in second gear all the time period. That is the default gear when something fails.

 

[MarkM66]

Thanks for the help. I'll check those things, and get back.

 

[MarkM66]

Yep, it was the speed sensor. Mice chewed up the wires.

 

[MrCritical]

Originally Posted By: MarkM66
Yep, it was the speed sensor. Mice chewed up the wires.


And the really "cool" thing is that the insulation around the wiring is made from a corn derivative.

"Hey mice and rats! It's lunchtime!"

 

[Bamboooo]

So, is it still stuck in 3rd gear?

 

[ltslimjim]

While I was out of town in Mississippi a few years ago, the speed sensor failed on a 1999 Dodge Stratus, 2.4L with a 41TE 4-speed auto transmission.

Not sure if it was the lame roads or what, but suddenly after going to see a movie with some friends...the car started but would not get out of what felt like 2nd or 3rd gear, just would have the RPMs rev. I can't remember if the speedometer still worked or not, I think it did.

 

[MarkM66]

Originally Posted By: Bamboooo
So, is it still stuck in 3rd gear?


No. It's back to normal.