Electrical Problem

Reply Subscribe

Thread Tools

Search this Thread

Oct 10, 2013 | 10:36 AM

Paul_Ritter

Thread Starter

New User

Joined: Mar 2013

Posts: 2

Likes: 0

Electrical Problem

I have a electrical problem on my 2002 F-350 7.3 XLT. Every time I turn on the head light switch the windshield washer pump turns on and the truck louses power, and there was one time it made the engine quit. I can get the windshield washer pump to come on with just the key turned to accessory and hitting the high beam switch on.

I changed the turn signal switch assembly, I thought there may be a short in the assembly but it did not fix the problem. I think it may be in the PCM

Oct 10, 2013 | 07:58 PM

aawlberninf350

It's a Van Gogh

Joined: Feb 2010

Posts: 7,813

Likes: 1,335

From: Elk Grove, CA

So just the washer pump, not the wipers? I understand the wiper motor ground wire is commonly sketchy, so making sure it is properly grounded is a good start. Any new electric accessories recently? Or maybe HIDs and a chip? Any burnt fuses? Also, any mods on the truck?

Oct 10, 2013 | 08:10 PM

BobbyDiesel71

Postmaster

Joined: Apr 2005

Posts: 2,759

Likes: 0

From: round rock, tx

have the dealership check your GEM module
our 2002 have electrical gremlins

Oct 10, 2013 | 10:42 PM

Tugly

Hotshot

Joined: Jan 2011

Posts: 18,849

Likes: 179

From: Puget Sound

HIDs? Check the ground connection near your wipers.

Oct 11, 2013 | 04:51 AM

Paul_Ritter

Thread Starter

New User

Joined: Mar 2013

Posts: 2

Likes: 0

Thanks I got looking wiring and found It was a grounding issue. The wire going to the grounding lug at G100 on the fire wall was badly corroded. I replaced the wire and know everything is fine.
Thanks’
<!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority

9; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} </style> <![endif]-->