5.0 questions
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Freshman User
Joined: Jan 2007
Posts: 41
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From: Oswego
5.0 questions
Soem of you have been very helpful with my recently acquired 87 F150 5.0. I have finally been able to get out under the truck. The cats were removed, and I found the old tube that ran from teh cat to the air check valve. The tube was metal, ran into a smaller valve, that then had a section of rubber hose that ran to what I believe must be the air valave at the back of the motor( i cant see it). THe tube was broke off at the air valve, because when I pulled it out from underneath, the inner valve came with it! Very carboned up, I might add, with thte metal ruptured. So, am I right in saying that the air valve is then hooked to the metal tube that runs between the back of the two heads? So that is where my exhaust smell is coming from? Can I just take the whole mess off, plug the holes in the heads, and plug the hose that comes from the AIR pump?
Tuned
Joined: Nov 2002
Posts: 395
Likes: 11
You can take all that stuff off and plug it. I would remove the air pump as well. You will probably get check engine lights but it will run. The EGR, EGR ports in the intake, and the rest of the EGR system are probably all plugged from the sounds of it. Plug all the vacuum lines that go to that stuff and it will probably run better than it ever has.
It would be best to pull all your codes from the computer, replace the egr system components if needed, test the air pump, tab and tad valves, vacuum lines and replace the pipe that goes down to the cat converter with some silicone exhaust hose, check the pipe that runs from the EGR to the intake, take the upper intake off and chip all the carbon out of it, clean it all up, clean the injectors or pop them out and have them cleaned while you have the upper intake is off, clean your IAC, clean the throttle body, put on a new intake gasket, throttle body gasket, EGR valve gasket, button it all up and run it.
It would be best to pull all your codes from the computer, replace the egr system components if needed, test the air pump, tab and tad valves, vacuum lines and replace the pipe that goes down to the cat converter with some silicone exhaust hose, check the pipe that runs from the EGR to the intake, take the upper intake off and chip all the carbon out of it, clean it all up, clean the injectors or pop them out and have them cleaned while you have the upper intake is off, clean your IAC, clean the throttle body, put on a new intake gasket, throttle body gasket, EGR valve gasket, button it all up and run it.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
that was a mouth full.
They make a bracket to replace your air pump.
the EGR stuff is helpfull, just a pain to keep running most of the time due to carbon build up.
Mines all blocked off i belive. i'm not sure to be honest. i can't find anything for it.
They make a bracket to replace your air pump.
the EGR stuff is helpfull, just a pain to keep running most of the time due to carbon build up.
Mines all blocked off i belive. i'm not sure to be honest. i can't find anything for it.
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