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I have a problem with my 99 Dakota 4wd 5.2: My speedometer only works after 25mph and up any thing under 25 it reads 0. The check engine lights is not on, but the ABS and brake lights are on.
i am thinking that you have a bad speed sensor or abs wheel sensor. if you have 4 wheel abs, the front hubs hold the wheel sensors, then there is 2 more speed sensors. one in the rear diff and one on the trans(i think)
i just did this today. 30 dollar part at Autozone. they had it in stock. took about 20 minutes to do. Cruise control, speedo and odo didnt work, ABS, Brake and Check Engine light on. all is good now. just replaced the sensor on the rear diff.
Last edited by norcalmike; 10-20-2010 at 02:44 PM.
4x4 is the same? Rear sensor. i cant find it on mine
Mine is a 4x4 w/rear ABS. The sensor assembly mounts to the top to the rear differential pumpkin. If you have 4-wheel ABS, it might be a different setup.
Just a lil note, my 99 and 02 did the same thing, replaced sensor noticed metal shavings on sensor, so i changed out diff lube as well, good time to do it, cause the sensor gets magnetized and picks up shavings when magnet in rear housing gets accumulated with shavings, got to keep diff lube clean.