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Was PSD0389
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Discussion Starter #1
Ok so I have an 86 F-150 that has been sitting for almost 3 years now.

Its had a ton of problems. Its on its 4th engine.

Now I really dont know anything when it comes to gas engines, Ive focused all my attention on diesels

It has a 302 with EFI.

Now it lost compression in 3 cylinders the first time the engine blew with about 15k on it. I bought the truck with this engine in it, had a cam, timing chain, headers and a couple other little mods and was converted to EFI.

So I was 16 at the time and didnt really know any better and got a reman 302 short block from ford to put in cuase it had a warranty.

Well about 3 months later with 2k miles on it, the new engine lost compression in one cylinder.

So I took it to ford and they tore it apart to find the culprit (a different shop that I would trust any of my trucks with put the first one in)

So anyways since they had to go through everything for warranty approval the checked the numbers on my injectors. Well turned out that I had two sets of 4 cylinder fuel injectors in the truck so obviously it was running very lean.:doh:

So I know the guys at the dealer pretty well and even though it should not have been covered under warranty they replaced the engine at no cost to me minus the cost of actual 5.0l fuel injectors.

So now ever since then the truck would be back there every month becuase what would happen is the truck would randomly cut out and die and Id have to let it sit and cool down for a couple hours and then I could start it back up.

They threw a lot of parts at it and it never fixed it and finally it died one day about 3 years ago and never would start again, just doesnt seem to be getting any fuel

So enough was enough with throwing money at it so for the past three years its been sitting in a shed.

So there is the background on it, Ive been planning on using it as a project to swap a diesel in becuase the truck is in amazing shape but for now I really just miss driving it and would like to get it running again.

So the issue is that it gets no fuel whatsoever. Now obviously the guy I bought the truck from screwed up the injectors. Now the engine thats in it has about 2k miles on it only. Its all stock now no more cam or anything.

Like I said Im not good with knowing anything about gas engines so I wanted to see what you guys think. Id really like to get it running. I put stabilizer in the fuel but Im sure Im gonna have to drain that and put new stuff in before attempting any type of starting. lol

Thanks in advance and sorry for the essay
 

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Was PSD0389
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Discussion Starter #2
bump
 

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NO fuel whatsoever? Check the fuel pump for pressure at the rail and for power at the tank. Let me know what ya find
 

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Canadian Eh
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675 Posts
needs a carb
 

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Was PSD0389
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2,601 Posts
Discussion Starter #7
Sell, sell sell.
Why would I do that?

get rid if it isnt worth the time unless its a keep sake
Im not getting rid of it, if that was an option it would have been gone 3 years ago. Like I said the plan for it is to put a diesel in when I have the funds to be able to. It was my first truck so I dont want to get rid of it and its in perfect shape

NO fuel whatsoever? Check the fuel pump for pressure at the rail and for power at the tank. Let me know what ya find
Im gonna do both of those when Im back near the truck in a week. Thanks for the tips

needs a carb
yes it does. But that wont be happening since that engine wont be in there forever
 

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screw the DARK SIDE
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948 Posts
Yeah get rid of it and sell it to me haha. I dont blame ya matt that truck is gorgues its in awesome shape.
 

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<-MONEY PITT!!
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1,308 Posts
NO fuel whatsoever? Check the fuel pump for pressure at the rail and for power at the tank. Let me know what ya find
:whs: Check fuel pump relay and fuses if you dont have power at the pump...
 

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Demon Dually
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5,140 Posts
First off whoever told you it had four cylinder injectors in it has their head up their azz. They are bosch style injectors that flow x number of lb per hour. The truck should have orange ring top injectors in it which are 19# injectors. You could even put green tops in which are 24# injectors. The most common problem is the fuel pressure regulator fo fuel issues. If it was converted from a carb application then you most likely have an inline pump on the frame somewhere as opposed to an in tank pump. As far as your problem with it not starting when hot or shutting off and having to wait for a while to start it back up, that is the TFI mocule on the distributor that is bad. It is a very common problem on ford gas engines of that era.
 

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Was PSD0389
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2,601 Posts
Discussion Starter #11
:whs: Check fuel pump relay and fuses if you dont have power at the pump...
Ill check those as well, thanks!

First off whoever told you it had four cylinder injectors in it has their head up their azz. They are bosch style injectors that flow x number of lb per hour. The truck should have orange ring top injectors in it which are 19# injectors. You could even put green tops in which are 24# injectors. The most common problem is the fuel pressure regulator fo fuel issues. If it was converted from a carb application then you most likely have an inline pump on the frame somewhere as opposed to an in tank pump. As far as your problem with it not starting when hot or shutting off and having to wait for a while to start it back up, that is the TFI mocule on the distributor that is bad. It is a very common problem on ford gas engines of that era.
The dealer is the one that told me, and that was a long time ago and like I said Im not very knowlegable when it comes to gas engines, they've always helped me out but who knows if they were being honest or not. Damage has already been done on that bill, and it was not a cheap bill:eek:

Where is the fuel pressure regulator located at?

If it has a pump on the frame is that pump still as likely to have gone out?

I know they have replaced the TFI module before when I brought it in for that same issue, but it probably wouldnt hurt to replace it again.

Thanks for all your help, as you can see my knowledge with gas engines isnt much
 

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Registered
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Ill check those as well, thanks!



The dealer is the one that told me, and that was a long time ago and like I said Im not very knowlegable when it comes to gas engines, they've always helped me out but who knows if they were being honest or not. Damage has already been done on that bill, and it was not a cheap bill:eek:

Where is the fuel pressure regulator located at?

If it has a pump on the frame is that pump still as likely to have gone out?

I know they have replaced the TFI module before when I brought it in for that same issue, but it probably wouldnt hurt to replace it again.

Thanks for all your help, as you can see my knowledge with gas engines isnt much
Why not take it to a reputable shop instead...this might sound strange but dealerships don't know it all!!! Has been proven countless times that they can be just as shady too...that of course is if you don't want to hassle with it...otherwise start by pulling plugs and make sure you got good spark and if you do start at the carb and work your way back in the fuel line...i like to put a small amount of gas down the carb and try to start it...if it is none of that then you need to get an ohm reader and start reading sensors and relays...hope this helps
 
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The pres reg is on the fuel rail on top of the engine it is round with a vac line coming out of it.But they usually do not keep the injectors from not getting any pres it will hang and have too much.There is a low pres pump in the tank and high pres on the frame (drivers side frame rail).There is a power and ground on the high press with a rubber cap over them make sure one has not come unplugged.The pump should come on and run about 10secs when the key is turned to run.
 

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FCDP
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122 Posts
Also check the pcm power relay. If thats not working its not going to run the pump for the first few seconds. Also spray a LITTLE starting fluid in the intake. If it trys to start its most likely fuel. If not it may have a lillte deeper problem.
 

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Was PSD0389
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Discussion Starter #15
Why not take it to a reputable shop instead...this might sound strange but dealerships don't know it all!!! Has been proven countless times that they can be just as shady too...that of course is if you don't want to hassle with it...otherwise start by pulling plugs and make sure you got good spark and if you do start at the carb and work your way back in the fuel line...i like to put a small amount of gas down the carb and try to start it...if it is none of that then you need to get an ohm reader and start reading sensors and relays...hope this helps
This dealer has helped me many times and I trust them, that truck has also been to another reputable shop that has done a lot of work for me. I havent been to a shop in a long time though. When I got my OBS I did all the work on it myself so there was no need to go to a shop so I havent dealt with a shop in a long time really. If I cant fix it, then Im gonna pull the engine out of it to get ready for a diesel swap. i dont want to take it to a shop and spend tons of money on it. Also its got EFI.

The pres reg is on the fuel rail on top of the engine it is round with a vac line coming out of it.But they usually do not keep the injectors from not getting any pres it will hang and have too much.There is a low pres pump in the tank and high pres on the frame (drivers side frame rail).There is a power and ground on the high press with a rubber cap over them make sure one has not come unplugged.The pump should come on and run about 10secs when the key is turned to run.
Awesome, this will be very helpful, Ill be sure to check all of this when Im up where the truck is this weekend. Thanks!

Also check the pcm power relay. If thats not working its not going to run the pump for the first few seconds. Also spray a LITTLE starting fluid in the intake. If it trys to start its most likely fuel. If not it may have a lillte deeper problem.
Ok I will definitely try that, thanks for the tips!
 

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Demon Dually
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5,140 Posts
If you end up needing a regulator I have a BBK regulator you can have for the shipping. I am getting rid of all my gas engine stuff. I have a brand new double roller timing chain set in the box if you need it too. Same deal, just pay the shipping. I think it would all fit in one of those USPS 5 dollar anywhere boxes .
 

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Was PSD0389
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2,601 Posts
Discussion Starter #18
If you end up needing a regulator I have a BBK regulator you can have for the shipping. I am getting rid of all my gas engine stuff. I have a brand new double roller timing chain set in the box if you need it too. Same deal, just pay the shipping. I think it would all fit in one of those USPS 5 dollar anywhere boxes .
I will take that stuff off your hands, thanks man! Let me know what I owe you for shipping and Ill send the money whatever way works best for you
 

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Demon Dually
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5,140 Posts
I honestly don't remember whether it is the two or three screw. I will get the stuff boxed up thurday night and let you know the shipping. I think it will all fit inside one of those anywhere for 5 bucks postal boxes.
 

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IH Diesel Power
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732 Posts
idk if you got her fixed yet but i would definently replace the pump on the frame, i had a 351 that did exactly the same thing and i couldnt figure it out for the longest time and after i found out there was a second pump on the frame it completly fixed the problem
 
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