problems with my truck

wonderboy24

wonderboy24

Royal Smart Person
Jul 10, 2012
1,167
651
113
Davenport, Iowa
#1
need some advise. my 96 ford f250 wouldnt start.i turn the key on and it wont start. i notice the odometer didnt show the mileage. as it normally does. i thought the battery was dead so i tried to jump it same thing. so i jumped the solenoid on the fire wall with the key on and it fired up.i took it for a ride and it shifted hard. the speedo dont work. the starter is a couple months old the solenoid as well a couple months old. i replaced the ignition switch. tried again same thing. i did researched and seems nobody is having the same problem either one or the other. i did check # 18 fues witch is for the speed sensor and the cluster. the fuse is good but. i checked for power on the prongs in the fues box i have no power there. was wondering if the cluster needs replaced. wasnt sure if the power runs to the cluster then to the fuse box. i am not good at electrical on cars or in this case trucks. thanks
 
TURNA

TURNA

Geezer
Jul 24, 2009
6,981
9,189
113
Socialist NY
#2
Is your neutral safety switch a box on the trans?
 
wonderboy24

wonderboy24

Royal Smart Person
Jul 10, 2012
1,167
651
113
Davenport, Iowa
#3
its on the trans.
 
Last edited:
1evilregal

1evilregal

Royal Smart Person
Apr 23, 2009
2,482
2,326
113
Greensboro, NC
#4
Just spitballing here, as electrical isn’t my strong point, but kinda sounds like what you said about no power getting to the cluster or a ground problem... if the computer isn’t getting a speed signal from the cluster, it sounds like it’s hitting predesignated points and not pulling out power at the shift... I know that you just did a lot of body repair on it, maybe some corrosion at the ground, Ora connector pulled loose?
 
pagrunt

pagrunt

Comic Book Super Hero
Sep 14, 2014
3,523
3,874
113
Shelocta, Pa
#5
I'd say the BCM might be the issue.
 
Scoot-71

Scoot-71

Not-quite-so-new-guy
Nov 13, 2018
20
26
3
Rio WI
#6
as a ford tech for almost 30 years it dont have a bcm, to old. Does ck engine lite come on with the key? Can you hear fuel pump turn on for approx 5 seconds? dbl ck all fuses and fuses under the hood, Im gonna look up wiring now, there is another fuse for the psom (speedometer) the psom takes the abs sensor reading and sends digital signal to pcm, the abs sensor is a voltage generator that makes its own signal with no external power sources applied to it. Ok ck fuse 8 as well. see if fuse 15 has power, both 15 and 18 recieve power from same source. Which is powered by fuse 10 under the hood which shows it is for the start curcuit too, hope this helps
 
Last edited:
Turbo Zach

Turbo Zach

Royal Smart Person
Sep 8, 2015
1,352
2,081
113
50130
#7
Sounds like a ignition switch problem to me. The one in the steering column. Good luck!
 
wonderboy24

wonderboy24

Royal Smart Person
Jul 10, 2012
1,167
651
113
Davenport, Iowa
#9
Just spitballing here, as electrical isn’t my strong point, but kinda sounds like what you said about no power getting to the cluster or a ground problem... if the computer isn’t getting a speed signal from the cluster, it sounds like it’s hitting predesignated points and not pulling out power at the shift... I know that you just did a lot of body repair on it, maybe some corrosion at the ground, Ora connector pulled loose?
checked every fuse they are all good.the part that puzzles me is the digital odometer isnt working where is it normally does. all the lights work.head.turn signals,brights, battery light just the ignition cylinder or the speedo and odometer dont work.
 
wonderboy24

wonderboy24

Royal Smart Person
Jul 10, 2012
1,167
651
113
Davenport, Iowa
#10
Sounds like a ignition switch problem to me. The one in the steering column. Good luck!
i replaced the switch today. and till the same thing. i didnt replace the lock cylinder though.
 

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