my truck

Asked by Jan 23, 2017 at 08:49 PM about the 1988 Ford F-150 XLT Standard Cab SB

Question type: General

Ok I have burnt wire on harness where it's
attached to under hood at firewall going
under drivers side cab, it's burnt 8in back
from female plug on inner side of fuselink
all th way back to gas tank to another
fuselink that looks good from there back to
taillights, now I replaced the burnt wire but
didn't on both fuselinks, I still have no
power, no crank, no start, no lights, no dash
lights, my brake lights don't even work, now
before I found th problem, I replaced
everything I thought was it, computer
system, new switch, new key switch, starter,
battery, cables, relay switch, fuel pump
relays, all th fuses under dash, just about
everything & 3 months & $400 dollars later, I
happened to take another look slowly at all
th wires & I think I finally found my problem,
burnt wire from harness at firewall to th gas
tank, that one wire was bare with nothing
covered it, after replacing it, I still have no
power no nothing, except I didn't replace
both fuselinks, U think if both fuselink is
fixed that I will have power again, I'm all out
of opportunities on what th hell it could be, if
anyone knows what they are talking about
please help me, thanks

4 Answers

109,385

I would double check all your grounds, battery ground and body grounds, also check your neutral safety switch, it should be located on the tranny...

20,120

Barring an external heat source, like a fire under the vehicle, or the wires being damaged by the exhaust system, you will have to locate the cause of the burned wire. A burned wire in the middle of a run and not at a junction location is usually a sign the wire is carrying more amperage than it is rated for.

20,120

Did you check inside the fuse box to see if anything was overloaded and burned out there. Use a multi-meter to check that you have 12 volts to the fuses controlling the things not working. I suspect you have 12 volts from the battery to the starter solenoid on the fender, but no voltage going to the solenoid to close the circuit thus engaging the starter. I suspect the problem is going to be in the circuit(s) controlling the interior accessories, including the ignition switch. I'd check the fuse box first.

I have 2010 ford f150 i dont get any power to my radio what could it be

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