speedometer/transmission/rear abs

Reply Subscribe

Thread Tools

Search this Thread

Apr 20, 2003 | 09:55 PM

tommmy

Thread Starter

New User

Joined: Apr 2003

Posts: 3

Likes: 0

speedometer/transmission/rear abs

I HAVE A 92 FORD 4X4 WITH STRAIGHT 300 6 CYL. YESTERDAY ALL AT THE SAME TIME. MY REAR ABS LIGHT CAME ON,SPEEDOMETER STARTED BOUNCING AND TRANSMISSION SHIFTED HARD THEN BEGAN SLIPPING. ANYONE HAVE ANY IDEA WHAT COULD BE GOING ON?

Apr 20, 2003 | 10:20 PM

dro man

Senior User

Joined: Feb 2003

Posts: 140

Likes: 1

From: Arkansas

speedometer/transmission/rear abs

replace you rear axel speed sensor, about $15 bucks and give it a test drive.

Apr 20, 2003 | 10:48 PM

Ryan50hrl

Post Fiend

Joined: Nov 2001

Posts: 7,698

Likes: 4

From: Neenah, Wisconsin

speedometer/transmission/rear abs

pull the rear diff cover off and change the fluid too....make sure the clutch packs for the limited slip aren't busted up. if they are the metal in there will do all kinds of stuff to your speedo.

Apr 21, 2003 | 12:04 AM

steve83

Post Fiend

Joined: Nov 2002

Posts: 9,987

Likes: 7

From: Memphis, TN

speedometer/transmission/rear abs

First, check the wiring to that sensor - it runs along the e-brake cable, so it might have been pulled loose.

Apr 21, 2003 | 02:18 AM

MustangGT221

Post Fiend

Joined: Nov 2001

Posts: 14,947

Likes: 6

From: Topsfield, MA

speedometer/transmission/rear abs

The speed sensor controls the ABS and the transmission shifting so they are all related to the same problem. Check the wires like Steve said first. The signal from the rear end to the speedo is a pulse signal, any unteruption in that signal (bad wire) would cause it not to work. If that checks out. the speed sensor ring might have lost a tooth on it, so open the diff cover and inspect it. Check to make sure none of the teeth are damaged. If so, replace it, it's cheap enough. If that doesn't work, it could be the speed sensor on top of the differential.

Last edited by MustangGT221; Apr 21, 2003 at 05:28 PM.

Apr 21, 2003 | 10:47 AM

tommmy

Thread Starter

New User

Joined: Apr 2003

Posts: 3

Likes: 0

speedometer/transmission/rear abs

THANKS FOR YOUR HELP GUYS, I'LL FOLLOW UP AND LET YOU KNOW HOW IT TURNS OUT .

Apr 21, 2003 | 04:50 PM

tommmy

Thread Starter

New User

Joined: Apr 2003

Posts: 3

Likes: 0

speedometer/transmission/rear abs

JUST WANTED TO LET YOU GUYS KNOW. I CHECKED WIRING AND LO AND BEHOLD,THE WIRING TO THE SPEED SENSOR HAD BEEN BURNED IN HALF. SEEMS THAT WHEN I HAD NEW EXAUST INSTALLED THEY RAN PIPE AGAINST WIRES. REROUTED AND RECONNECTED.TRUCKS DOING GREAT!! YOU GUYS ARE SHARP.THANKS FOR YOUR HELP.