2003 Chevy S-10 Speed sensor

BPCHIEF02

MEMBER
2003 CHEVROLET S-10
6 CYL
2WD
AUTOMATIC
136,000 MILES

Drive shaft broke in half and broke end housing on transmission. I have replace every thing now but I got a abs and brake light and my speedo jumps up and down about 10 mile per hour. I would like to know what this sensor reads on the transmission shaft. Is it a magnet that is replacable or do I have to replace the shaft coming out of the end of the transmission.

Sunday, January 10th, 2010 AT 7:55 AM

5 Replies

MERLIN2021

MECHANIC
17,250 POSTS

If tailshaft housing cracked or broke off, it needs to be replaced, Speed sensor is the magnet part, and reads teeth on output shaft. It is part # 22 in diagram.

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Sunday, January 10th, 2010 AT 8:11 AM

BPCHIEF02

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3 POSTS

I have replaced all that but still not working do you think when it broke that it messed up the teeth on the shaft? Cause it not reading right.

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Sunday, January 10th, 2010 AT 10:23 AM

MERLIN2021

MECHANIC
17,250 POSTS

If the tailshaft housing was broken by this event, it is possible that damage to the output shaft occured. Did the housing break?

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Sunday, January 10th, 2010 AT 10:58 AM

BPCHIEF02

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3 POSTS

Yes the tail house broke right off and it also it the sensor so I replaced it. Do replace this tail shaft to have to take transmission apart?

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Sunday, January 10th, 2010 AT 11:02 AM

MERLIN2021

MECHANIC
17,250 POSTS

No but you need some special tools to support the output shaft, and remve the speed sensor rotor from the shaft.
EXTENSION HOUSING Remove Vehicle Speed Sensor (VSS) retaining bolt. Remove speed sensor assembly and "O" ring. See Fig. 26 . Remove extension housing and seal. Remove output shaft sleeve and "O" ring (if equipped). Remove speed sensor rotor from output shaft (if necessary). Install Gear Puller (J-21427- 01) and Adapter (J-8433) on rotor. Pull rotor from output shaft. Install Output Shaft Support Fixture (J-29837-A) on output shaft. See Fig. 7 .

58 is output shaft, 59 is the sensor rotor. I would raise both rear wheel off the ground, remove the sensor, and rotate the driveshaft as I inspect the rotor for damage.

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Sunday, January 10th, 2010 AT 12:01 PM