Speed Sensor

[ntoprator]

Alright guys, I can't find the front drive shaft speed sensor anywhere!
My speedo doesn't work and I'm throwing a speed sensor code. I already replaced the rear, no fix, where is the front???

Thanks a bunch guys! Any links to pictures of the sensor on the tc?

 

[section525]

Only the rear speed sensor on the transfer case is used for the speedometer, I believe. If you replaced the sensor and it still doesn't work... then it could be the harness, etc.

 

[ntoprator]

Also, at about 80+- MPH the speedo will bounce from zero up to about 65, and bounce back and forth until I speed up or slow down past that point.

I'm starting to get extremely frustrated, honestly.

Do I need to tear the dash down adn look for a broken/loose wire?

 

[section525]

You can pull the cluster out without too much trouble. There's instructions on some of the indiglo guage swap threads you could search for.

You installed a whole new sensor and gear mech?

 

[ntoprator]

I pulled the sensor out (1 bolt) it had the gear mech (little plastic gear?) on, I moved that to the new sensor, and dropped it in, in it's place. Reconnected the electronic connector.

the wires appear fine.

 

[TPLYNCH]

Do the '97's have the VSS (Vehicle Speed Sensor) in the transmission?, or was that a later model part?

 

[section525]

Yeah, 2wd it was in the tranny, 4WD it was in the tcase. In 98 they moved it to the rear axle.

 

[ntoprator]

Well, today I tried a new guage cluster (dealers reccomendation) and still nothing.

Anyone else have any ideas? ECU? I'm at a complete loss, and I'm in bad shape here.

 

[TPLYNCH]

The VSS is different from the speed sensors used for Auto 4x4. It is inside the t/f case as Section525 indicated. Did they look at that? Are all the wires running to the t/f case connected properly?