1999 Ford F-150 Electrical Problems

MY99172F150

MEMBER
1999 FORD F-150
V8
4WD
AUTOMATIC
172,000 MILES

I have a 99 Ford F150 4X4 Supercab 5.4V8 with 172,000 miles. Sometimes but not always my power windows will blow the 30amp fuse under the hood and the other day on a cold morning start up all the gauges on the dash went crazy, the speedmeter and the rpm gauge went all the way to the max and the engine shook a little but went away after just a minute or two.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Have you checked for a bad ground?

Was this

answer

helpful?

Yes

No

Tuesday, November 9th, 2010 AT 10:48 AM

MY99172F150

MEMBER
3 POSTS

I asked a question yesterday in why am I blowing fuses sometimes when I use my power windows and the fuse that blows is a 30 amp under the hood. You replyed by asking me to check for a bad ground wire. So now my question is where is the ground wire located at and what to look for when I locate it? If it is not a bad ground wire then what could be making the fuse blow under the hood sometimes when I use my power windows?

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Wednesday, November 10th, 2010 AT 1:42 PM

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Remove the door panel and you will find the wiring going to the switches. Check for broken or skinned wiring. As far as other things, a common place for a short to exist is between the door and door frame. There is a rubber boot covering the wiring and things break under there. Finally, the motor could be drawing too many amps due to an internal short.

Was this

answer

helpful?

Yes

No

Wednesday, November 10th, 2010 AT 4:05 PM