This is soooo weird!!
Thread Starter
Redneck
Joined: Mar 2011
Posts: 138
Likes: 0
From: Farm
So where do I start I just bought this truck last weekend. There was a new fuel filter behind the seat. the rear tank only works on truck also. So should I start with fuel first and replace fuel filter then take a good pump out of one of my other trucks? ( I have 5 of these . My old man figures maybe pick up coil? I'm not sure where to begin. I sure do miss carbs right now!!! 
Senior Member
Joined: Jul 2008
Posts: 58,557
Likes: 1,165
From: Long Beach Calimexifornia
So where do I start I just bought this truck last weekend. There was a new fuel filter behind the seat. the rear tank only works on truck also. So should I start with fuel first and replace fuel filter then take a good pump out of one of my other trucks? ( I have 5 of these . My old man figures maybe pick up coil? I'm not sure where to begin. I sure do miss carbs right now!!!
Senior Member
Joined: Jul 2008
Posts: 58,557
Likes: 1,165
From: Long Beach Calimexifornia
So where do I start I just bought this truck last weekend. There was a new fuel filter behind the seat. the rear tank only works on truck also. So should I start with fuel first and replace fuel filter then take a good pump out of one of my other trucks? ( I have 5 of these . My old man figures maybe pick up coil? I'm not sure where to begin. I sure do miss carbs right now!!!
EFI is a smaller can of worm's than Carbed...trust me/ us!
Senior Member
Joined: Aug 2008
Posts: 556
Likes: 25
invest 30 bucks in a code reader (since you have 5 f150's) and start there. Throwing random parts at an EFI engine rarely works. The days of raising the hood and glancing in the bay and saying..."there's the problem" are looooong gone my friend. LOL. A dual tank setup is liable to give you a severe headache if you're not sure where to start at least. Sounds like something dumb to me..it usually is.
Senior Member
Joined: Jul 2008
Posts: 58,557
Likes: 1,165
From: Long Beach Calimexifornia
invest 30 bucks in a code reader (since you have 5 f150's) and start there. Throwing random parts at an EFI engine rarely works. The days of raising the hood and glancing in the bay and saying..."there's the problem" are looooong gone my friend. LOL. A dual tank setup is liable to give you a severe headache if you're not sure where to start at least. Sounds like something dumb to me..it usually is.
See link: http://www.handsontools.com/Equus-In...ol_p_5574.html
Junior Member
Joined: Sep 2011
Posts: 3
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From: New Jersey
How many miles on engine? old 302s were notorious for the timing chains to jump when they get old. Also check the ingition control box. Its the silver square box that has about 3 connectors going to it. They have some sort of a retarding capability built inside of them. They are easy to replace, just plug it in. Could also be a vacuum leak. If its an injected motor they are known for leaking at the upper mainifold. If thats the case make sure to get the extra long torx socket to reach the bolt that no one seems to be able to find.
Senior Member
Joined: Jul 2008
Posts: 58,557
Likes: 1,165
From: Long Beach Calimexifornia
How many miles on engine? old 302s were notorious for the timing chains to jump when they get old. Also check the ingition control box. Its the silver square box that has about 3 connectors going to it. They have some sort of a retarding capability built inside of them. They are easy to replace, just plug it in. Could also be a vacuum leak. If its an injected motor they are known for leaking at the upper mainifold. If thats the case make sure to get the extra long torx socket to reach the bolt that no one seems to be able to find.
I think you're referring to the TFI module (ICM). The ECU adds timing advance via the TFI. Doubt that's it either. Removing the SPOUT plug bypasses the ECU timing advance through the TFI. The TFI can be removed & bench checked at most auto part's stores.
Pull error code's.
Take Fuel pressure reading off the test port (Looks like a tire valve stem) on the fuel rail.
Remove your O2 sensor temporarily & see if you get RPM's back (Clogged Cat Converter)
Last edited by ymeski56; Sep 9, 2011 at 06:45 PM.
Thread Starter
Redneck
Joined: Mar 2011
Posts: 138
Likes: 0
From: Farm
Wouldn't even get what he's getting w/ a jumped timing chain.
I think you're referring to the TFI module (ICM). The ECU adds timing advance via the TFI. Doubt that's it either. Removing the SPOUT plug bypasses the ECU timing advance through the TFI. The TFI can be removed & bench checked at most auto part's stores.
Pull error code's.
Take Fuel pressure reading off the test port (Looks like a tire valve stem) on the fuel rail.
Remove your O2 sensor temporarily & see if you get RPM's back (Clogged Cat Converter)
I think you're referring to the TFI module (ICM). The ECU adds timing advance via the TFI. Doubt that's it either. Removing the SPOUT plug bypasses the ECU timing advance through the TFI. The TFI can be removed & bench checked at most auto part's stores.
Pull error code's.
Take Fuel pressure reading off the test port (Looks like a tire valve stem) on the fuel rail.
Remove your O2 sensor temporarily & see if you get RPM's back (Clogged Cat Converter)
Troll Hater
Joined: Apr 2011
Posts: 2,837
Likes: 7
Originally Posted by ymeski56
Wouldn't even get what he's getting w/ a jumped timing chain.
I think you're referring to the TFI module (ICM). The ECU adds timing advance via the TFI. Doubt that's it either. Removing the SPOUT plug bypasses the ECU timing advance through the TFI. The TFI can be removed & bench checked at most auto part's stores.
Pull error code's.
Take Fuel pressure reading off the test port (Looks like a tire valve stem) on the fuel rail.
Remove your O2 sensor temporarily & see if you get RPM's back (Clogged Cat Converter)
Also, might help to know if it acts the same (3200 rpm cutout) under load and no load.