Dodge Ram 2500, speedo quit working, replaced speed sensor, what would be the next step

JOE WULFEKUHLE

MEMBER
1990 DODGE RAM
155,000 MILES

Speedometer quit working, replaced speed sensor, what would be the next step for checking out the speedometer.

Tuesday, October 18th, 2011 AT 7:31 PM

7 Replies

JACOBANDNICKOLAS

MECHANIC
108,164 POSTS

Has the abs light come on? Which sensor did you replace?

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Tuesday, October 18th, 2011 AT 7:32 PM

JOE WULFEKUHLE

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7 POSTS

I replaced the one on the transmission

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Tuesday, October 18th, 2011 AT 7:39 PM

JOE WULFEKUHLE

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I replaced the one on the transmission. The ABS light has not come on.

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Tuesday, October 18th, 2011 AT 7:42 PM

JACOBANDNICKOLAS

MECHANIC
108,164 POSTS

Do me a favor, based on different options, there could be a speed sensor on the top of the rear differential. Check to see if there is one there. If there is, check to see if there is continunity through it.

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Tuesday, October 18th, 2011 AT 7:55 PM

JOE WULFEKUHLE

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Yes, there is one on top of differential. Tried to remove plug from ABS sensor on the differential, plug and sensor was corroded very bad. I ordered plug and sensor. I will replace them, but I had to order them, parts houses and dealer did not stock them. Thanks for your help. Joe