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meone help me PLEASE


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kinger69877
New User

Jun 20, 2008, 3:37 PM

Post #1 of 6 (1263 views)
post icon meone help me PLEASE Sign In

MadI have a 1986 F150 with a 302 EFI with duel tanks, while driving it down the highway the truck quit and now wont start. It will roll over but no start, when I turn the key I dont hear the fuel pump kick in. I checked the wire to the High Pres. pump (on the frame) and I only have 0.01 volts. Can anyone help me to figure out the problem, not even sure where to look; I tried reseting the fule pump shut-off switch, but that never worked. I have lots of power to the solinoid. Help me if you can please/Crazy


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 20, 2008, 3:48 PM

Post #2 of 6 (1259 views)
Re: meone help me PLEASE 86 F-150 Dual gas tanks Sign In

Hmmm? Doesn't this have a fuel pump in each tank? Can't you just switch to the other one for now. Not sure but it may share just one fuel filter,

T



kinger69877
New User

Jun 20, 2008, 3:51 PM

Post #3 of 6 (1257 views)
Re: meone help me PLEASE 86 F-150 Dual gas tanks Sign In

It does not matter which tank I have the switch on I cant get power to the main pump,


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 20, 2008, 4:06 PM

Post #4 of 6 (1254 views)
Re: meone help me PLEASE 86 F-150 Dual gas tanks Sign In

Could be and probably is me but I think each tank has its own pump and no other involved or shared. No matter - you are reading nothing for voltage and just in general for Fords of the 80s and 90s relays are common to just up and quit like that.

I just plain admit I don't know the trucks that well. Relay for fuel pump(s) is likely underhood and has a green connector if that helps and it's probably not marked otherwise.

Sometimes in a jam you can just whack them with the plastic of a screwdriver and they snap to till you get another one if that trick works,

T



kinger69877
New User

Jun 20, 2008, 4:09 PM

Post #5 of 6 (1252 views)
Re: meone help me PLEASE 86 F-150 Dual gas tanks Sign In

Thank you very much, I will give that a shot and see and let u know if it works.


jayeffel
User

Jun 21, 2008, 4:26 AM

Post #6 of 6 (1246 views)
Re: meone help me PLEASE 86 F-150 Dual gas tanks Sign In

    The dual tanks do have separate pumps in the tanks themselves. They share one fuel filter. My front tank pump stopped working ( all evidence points to the pump) and I simply switched to the back tank for all use. I have filled the front tank and used it as spare; only problem is I have to siphon to transfer from tank to tank.

Would fix the front pump except need to drop tank to get at pump.






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