My speedometer quit working today. I got in my truck and started driving and realized about a quarter mile away from the house that my speedometer wasn't working. The truck was also shifting very hard. My brother said to get a code reader and run my codes but I have no idea how to go about that. Could I just need more tranny fluid? Any advice would be very helpful. This truck is my only means of transportation so I need to get this fixed right away.
-- P.S. My ABS light has been on for the past couple weeks. Nothing seemed off so I didn't think anything of it.
i would have to say its something with the overdrive switch..... makes it shift rough, and the speedometer may or may not work up to a certain mph..... also does your overdrive light flash? if so i would get that checked.... cuz i don't think its a bad cluster.... and its not cable driven either.... so i would get that overdrive checked out.
_________________ 95 F-150 300 CID 4.9 5-SPD 325,000 and still kicking! 01 Grand Prix 3800 134,000. 91 Camaro 3100 T-Tops 220,000 on the body, 112,000 on the engine. 85 F-150 (soon to be 351M) 4x4, 39 inch tall tires.
Joined: Sat Nov 02, 2002 2:19 pm Posts: 12511
My Photos My Truck Mods Location: Memphis, TN
Truck: 83 Bronco w/major mods
Driving an electronic automatic with a dead speedo can do some damage to the trans, so don't. Codes won't tell you anything useful - find out why the speedo isn't working by testing power, ground, & the ABS sensor in the rear diff. I agree that it's most likely a short in a circuit on the same fuse as the PSOM.
On Rear end their is your speed sensor unplug it and check it for corrosion also try to pull the wires look for green stuff. I bet thats where the problem lies and I agree with Steve83 with the speed sensor not working it could mess up the e4od. If you pull codes and they say tranny problems its most likely from the speed sensor not functoning and its not located in the transits on the rear diff.
_________________ 1979 F-350 Crew Cab
2wd 351m 4 Speed Long bed
1979 F-150 Ranger Supercab
2wd 351M C-6 Long bed
4wd 5.0 E40d
12-15 mpg. 190,000mi.
1995 F-150 Standard
2wd / 4X4 converted 4.9 5 speed
15-16 mpg 255,000mi.
My truck is having the same Problem Speeodometer quit working.I droved stright to my Machanic's house, he checket it out made some test, and said that I should buy a speeodometer cluster, he also said that it was alright to drive my truct until I found one. This proved a mistake, because after 2 days the truck trans. will not engage. Please advise:and I still have not been able to fine a speerodomeater cluster...not even from a ford dealer. Thanks
well the other day my exhaust mount broke causing my exhaust to wobble and slide off its sleeve as i tried to get it off till i got back home to fix it i guess i hit something i eventually hung it up with a clothes hanger for the time being but my speedometer stopped working is there any way i could have hit the vss and shorted it out or or is it in a case, also my abs light is on and ever since then when i go up hill it jerks its making me feel like my clutch is slipping but its new so i know thats not it any help would be apprieciated