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Mine is doing it again, for the second time. First time the speed sensor was broken in half....this time....same thing, broken again.
My vote is the speed sensor.
1998 2500 QC SB 4x4 White DDP 4s, O-ringed ported and polished head, Silver 62, Full Garmonized SunCoast, billet front to back, hood stack, pump plug, no plate, AFC disabled, 5K GSK, far more to come.....
Mine did the same thing, but I has accidently shorted the circuit when installing a brake controller. When I drove the truck is was really obvious because when you stomped on the brakes the rear ABS didn't work. Found out the fuse was blown (located in the cab next to the driver's door). Replaced the fuse and all problems are now gone.
Hope this helps.
The Following User Says Thank You to dodgenewbee For This Useful Post:
check your brake fluid... my lights were on also and i couldn't figgure out why, eventually figgured out that i had a crack in a brake line that was leaking fluid, so it was low. evenaually it got too low and the brakes didn't work so i kinda figgured out what was going on. After i fixed it and filled it back up with fluid lights went away and haven't come back on to this day
-'09 2500 QCLB 4x4, 6.7L, 68rfe, 3.73, 4" TBB, EGR Delete, AFE Stage 2, 235/80-17 Michelin's, open breather, EFI Live
-'94, 2500 2wd, 5 sp, 3.54, many mods... always fun to row gears in a 12v
My speedo doesn't read until 20mph, and my abs and brake lights are on. Does that mean my speed sensor is bad? Will this solve the abs and brake light problem? Where is the speed sensor, and where do I buy one?
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