bad fuel pump.
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More Turbo
Joined: Apr 2018
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From: pine city washington
bad fuel pump.
1985 f250 lariat carberated. it has sat for 15 yrs. i finally got the ign working. Someone has put an Endelbrok intake and carb on. Now it needs the fuel pump. Where is it? In the tank on the rail on the engine? it has a 460 in it and a single tank.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Pretty easy to find out.
Follow the fuel line from the carb to the tank till you come across the pump.
You will also see where ALL the rubber fuel line is that needs to be replaced as it is dried out and cracked.
Dave ----
Follow the fuel line from the carb to the tank till you come across the pump.
You will also see where ALL the rubber fuel line is that needs to be replaced as it is dried out and cracked.
Dave ----
Lead Driver
Joined: Jun 2013
Posts: 5,654
Likes: 1,158
From: Tolland, CT
Isn't the fuel pump mounted on the engine, driven by the cam near the lower side of the timing chain cover... ?
https://www.google.com/search?q=1985...hrome&ie=UTF-8
https://www.google.com/search?q=1985...hrome&ie=UTF-8
Lead Driver
Joined: Jun 2013
Posts: 5,654
Likes: 1,158
From: Tolland, CT
Moderator
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Posts: 56,977
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From: Virginia
Isn't the fuel pump mounted on the engine, driven by the cam near the lower side of the timing chain cover... ?
https://www.google.com/search?q=1985...hrome&ie=UTF-8
https://www.google.com/search?q=1985...hrome&ie=UTF-8
FTE Legend
Joined: Nov 2015
Posts: 30,876
Likes: 4,115
From: Angier, NC
Dave ----
Lead Driver
Joined: Jun 2013
Posts: 5,654
Likes: 1,158
From: Tolland, CT
Oh, see related threads below... maybe that may help... as you'll see, both Dave's are there too... 
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Thread Starter
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More Turbo
Joined: Apr 2018
Posts: 729
Likes: 59
From: pine city washington
that is what i figured. it sat for 15 years and it cranks just fine but no gasoline coming up and no pump on the engine.
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From: Virginia
If you have the original system you can do a quick check. Look at your starter relay (solenoid) on the pass side fender. You will have two small terminals on it. One will be the s terminal and have a red/blue wire on it. The other small terminal is the i terminal, and it should have a wire on it also, I think it's blue. If you pull this wire off and jump it to the battery + terminal, you can see if you hear the pump running. Jumping this will bypass a lot of the controls for the pump. The pump is what usually fails, but there a lot of other places for failure, like a oil pressure switch and a fuel pump relay. It will also bypass the inertia switch, another possible failure point.
Last edited by Franklin2; Dec 30, 2025 at 05:40 PM.
5th Wheeling
Joined: Aug 2023
Posts: 37
Likes: 20
it should be in the fuel tank.
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