my grandson has a 93 f150 5.0 multi port injection. truck started running bad and is now down on the drivers side. i can pull any plug wire on drivers side and it makes no difference. motor is shaking and if i pull one from the passengers side it get worst. also the wipers and radio stopped working during the two to three weeks that the motor started running bad. it did not happen all at once. i have replaced the plugs, wires, cap, rotor and o2 sensor. we did find a bad injector and replaced it before this new problem started. i'm a gm and amc man so i really don't know what i'm looking for. i did find the shark plug (spelling) and pulled it but it made no difference at all. i would be very grateful for any advice to try to fix this. he has been eye balling a chevrolet motor i have on a stand but i really don't want to give it to him.

if this is in the wrong section please move.

 

He needs to read this caption, and follow the link in it before doing anything else:

(phone app link)


An engine swap would be a gargantuan waste of time, money, & effort.

 

Have you checked or spark on the left bank?
With a plug/wire setup it's easy to see if you can get the wire to arc. Don't do that if you have fuel evident though.

I can't remember how the fuel delivery system works, but is it possible there is no fuel to the left bank? It's odd that all 4 injectors would fail. Unless there is a control module that controls that. I can't remember how that work.

There is an ignition control module but I don't think it would only cut out fuel to one bank.
It can't be a spark thing with a distributor actually, so maybe no need to check for spark.
Have you checked fuel pressure?

What is this "shark plug" thing you pulled? You aren't sure if it's spelled correctly but I'm not sure what you're trying to describe by that name.

I had a '93 until 2011ish so I'm a big foggy on those motors.

How about checking compression?

 

I'm sure he's talking about the SPOUT connector.

 

yes that's it. i have also found these trucks leak around the windshield and may have a problem with the fuse box getting moisture in them. if i can get that sorted out i'll pull the injection off and put a carburetor on it. i'm really beginning to dislike this truck.

 

Not sure what makes you think you could install a carburetor.


What is the SPOUT connector?

 

the spout connector is the plug you pull to set the timing. what makes you think i can't install a carburetor, this is right up my alley. like i stated i'm a gm and amc man you can add mopar to that too. carbs are what i know. i was a racer for many years. i'm just left in the dust on fuel injection as i never really worked with the injection setups on anything.

 

No, these trucks didn't have w/s leaks. Previous & later ones did, but not '90-96.

Putting a carb on it will make it illegal on any public road, harder to drive, harder to maintain, harder to sell (worth A LOT less), less efficient, less powerful, less reliable, less durable... The EEC-IV system is arguably the simplest & most-reliable EFI ever. Maintain it - it's cheap & easy. Much cheaper & easier than hacking a carb onto it.

 

i don't know where you live but we can do what ever we want to here in alabama. i know of a few of these trucks that have been swapped and a few more that have chevy motors in them i know i can make the truck perform a lot better with the carb then the injection will ever do. i have also been told by a big time ford man that this is the worst fuel injection system ford ever put on a truck. he says you can't hop it up and said a shift kit and advance the timing is about the best you can do with it. the truck will never be sold so that holds no water with me. now on the other hand i'll have to teach my grandson about carbs if i do that. the injection would be easier for him, but if it was mine to drive i would have already mounted a 455 oldsmobile in between the rails. i do things like that, i'm building a 67 rambler 220 coupe on a s10 frame with a 454 th400. been doing some reading and i believe i know how to test the pulse to the injectors so that is the next thing for me to try. . i do know that the floor board gets wet but haven't figured out from where yet and was told the windshield, so you say not this year model makes me feel better. i'll try to keep yall posted on what works or don't work, chasing these demons is gonna be fun. hey yall have a great day and thanks for dropping by.

ps i see your in tn. i figure yall could do the same there as here to your ride.

 

I'm going to follow your build threads.
Anything is possible, just seems like this vehicle isn't the one to make custom.

Good luck. You'll need to do a bunch of research to find out which wiring components you cannot remove. Some will be required but not all.

I'm curious which option you'll take first -the intake and carb swap or just pulling the motor and retrofitting a custom motor.

Thanks for thinking outside the box with the creative solutions.
I had to rebuild a few motors with my dad when I was a kid, including the motor in my own car. I learned a lot for life, your grandson is lucky to have somebody teach him these things.