relays
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New User
Joined: Oct 2001
Posts: 12
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relays
I have a 86 f-250,460 carburated where are the fuel relays?And how can I tell what Ingition system I have, and does the Ing.Mod(on the fender)have anything to do with the fuel or is it just for spark,I'm just not getting fuel, but I think it is my in tank fuel pump.
Mountain Pass
Joined: Jan 2002
Posts: 198
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From: Ft. Pierce Fl usa
relays
The fuel/oil pressure relay switch is on the "T" on the back of the engine with the oil pressure gauge sender. Black 1" diameter, two wires coming out. Mine failed a couple of weeks ago and cost me a $200.00 tow bill. Pull the plug a jump the top two holes with a small wire. That will tell weather it is the cuprit. Yes there is a crash shut down, a tag on the radiator support should tell you where that is located, I have forgotten (hasn't broken YET)
MT
MT
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Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
relays
'86 inertia switch is on the firewall under the steering column in front of the brake pedal inside.
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Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
relays
Furl pump relay is on a plastic bracket off the firewall just above the ignition box. Ignition is DEFINATLEY Duraspark II, the 460 never ran anything else before it went EFI.
As for the inertia switch, on my truck, it was on the pass side of the transmission hump, up by the firewall.
If you suspect the fuel pump, it probably is... They are notorious, both of mine were gone(dual tanks)...
Evan
86 F250 HD XLT Lariat Explorer 4x4 ex. Extended Cab: 8800LB GVWR 460/Edelbrock 1411
T19/BW 1345/3.55 geared Full Floater 10.25/Dana 50 TTB
265/75R16's on Whitespokes
I'm just your average 18 year old... LOL
As for the inertia switch, on my truck, it was on the pass side of the transmission hump, up by the firewall.
If you suspect the fuel pump, it probably is... They are notorious, both of mine were gone(dual tanks)...
Evan
86 F250 HD XLT Lariat Explorer 4x4 ex. Extended Cab: 8800LB GVWR 460/Edelbrock 1411
T19/BW 1345/3.55 geared Full Floater 10.25/Dana 50 TTB
265/75R16's on Whitespokes
I'm just your average 18 year old... LOL
Posting Guru
Joined: Jul 2002
Posts: 1,785
Likes: 0
From: Paola, KS
relays
I believe that an '86 carbed. 460 would have a block mounted mechanical fuel pump therefore it cannot just be turned off.
Also if the fuel pump was able to just turn off it still would not quit running until the fuel bowls went dry, which could be up to a mile depending on how you are running at the time.
Also if the fuel pump was able to just turn off it still would not quit running until the fuel bowls went dry, which could be up to a mile depending on how you are running at the time.
