92 Nissan PU - blows fuel pump fuse


Old 03-01-02, 01:56 PM
Visiting Guest
Posts: n/a
Question 92 Nissan PU - blows fuel pump fuse

I have a 92 Nissan pickup that blows the fuel pump fuse on rainy or foggy days. It works fine on clear sunny days.

With the truck running I used a hose and sprayed the wiring to the fuel pump. When I sprayed close to the fuse block under the hood that contains the fuel pump relay the fuse blew. I swapped out the fuel pump relay and put dielectric grease on everything hoping to moisture proof it. The problem still exists. TIA!!!
Sponsored Links
Old 03-01-02, 05:20 PM
Visiting Guest
Posts: n/a
Likely a wire that has chaffed insulation and when it takes on moisture, it blows the fuse.
Old 03-01-02, 09:09 PM
Visiting Guest
Posts: n/a
That makes sense to me and I've traced the wires. I had a Subaru in that past that some squirrels took to eatin' the wiring. But I don't see any walnuts or any wires that look suspect. I've pulled apart every connector that I could find. The connectors look in good shape and I covered them with dielectric grease and put back together.

I am thinking on running a wire from the relay under the hood to the fuel pump to try and isolate the problem. Would you have any other suggestions on tracing this sucker. THANKS!
Old 03-02-02, 05:05 AM
Visiting Guest
Posts: n/a
You could do that. And if you lick the source of the problem, the wire has a breakdown somewhere.

Check www.alldata.com for any known bulletins that might match your problem.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes