Topic Sponsor
1987 - 1996 F150 Still running strong! Talk about your 8th and 9th generation Ford F150 trucks.

Please help ..Truck won't start how do I diagnose problem

Thread Tools
 
Search this Thread
 
Old 10-15-2013, 04:29 PM
  #11  
Junior Member
Thread Starter
 
Spider walk's Avatar
 
Join Date: Oct 2013
Posts: 9
Received 0 Likes on 0 Posts
Default

Can I switch the fuel pump relay for another one to see if it is working ? Are all the similar looking relays the same ? Oh I tried both tanks.....neither fuel pump came on...
Old 10-15-2013, 04:34 PM
  #12  
Junior Member
Thread Starter
 
Spider walk's Avatar
 
Join Date: Oct 2013
Posts: 9
Received 0 Likes on 0 Posts
Default

Oh fuel gauge is not working on dash too
Old 10-15-2013, 04:43 PM
  #13  
Senior Member
 
Forge-World-FORD's Avatar
 
Join Date: Jun 2011
Posts: 2,364
Likes: 0
Received 102 Likes on 99 Posts

Default

O think you can swap it with the horn relay. So it has power right? It turns on but no pump noise? There is a way to jump two pins of the diagnostic connector to turn the pumps on. Can remember which right now...

Also, since you have dual tanks, you might want to make sure your tank switch is still good.
The following users liked this post:
Spider walk (10-15-2013)
Old 10-15-2013, 04:56 PM
  #14  
Junior Member
Thread Starter
 
Spider walk's Avatar
 
Join Date: Oct 2013
Posts: 9
Received 0 Likes on 0 Posts
Default

Ok u asked me if it has power .....not sure if the relay has power......so hold on let me take a step back what exactly do I check first......I checked the fuel inertia switch and it is on ....but maybe it is bad......I would like to test the fuel inertia switch by bypassing it...not sure how though .....or should I be checking the fuel pump relay first.....I will have to get my tester out.....guess I could just test both switch and relay .....ahhhh where do I start.....? I checked fuel pump fuse already.....thanks again for everyone's help
Old 10-15-2013, 05:59 PM
  #15  
Senior Member
 
Forge-World-FORD's Avatar
 
Join Date: Jun 2011
Posts: 2,364
Likes: 0
Received 102 Likes on 99 Posts

Default

Originally Posted by Spider walk
Ok u asked me if it has power .....not sure if the relay has power......so hold on let me take a step back what exactly do I check first......I checked the fuel inertia switch and it is on ....but maybe it is bad......I would like to test the fuel inertia switch by bypassing it...not sure how though .....or should I be checking the fuel pump relay first.....I will have to get my tester out.....guess I could just test both switch and relay .....ahhhh where do I start.....? I checked fuel pump fuse already.....thanks again for everyone's help
Just the truck in general has power. Check both. Don't forget to test the tank selector switch too.
The following users liked this post:
Spider walk (10-15-2013)



Quick Reply: Please help ..Truck won't start how do I diagnose problem



All times are GMT -4. The time now is 10:07 AM.