air in fuel???
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New User
Joined: May 2007
Posts: 24
Likes: 0
From: Wisconsin
air in fuel???
92 7.3L non turbo
I found out that my problem is air in the fuel. My truck stalled and would not restart for me, so i pushed in the shreader valve on the fuel filter housing and found pressure but just air.
My question is that i have the grey caps on my fuel injectors and i am not shure if i have to replaced the injectors or the caps or what? Also what else would be common places for air to enter the fuel system? Or is there any way to test for this problem?
Where is the best place to order parts?
I want to take care of this for good so anything that could be apart of this from old age/rust is going to be replaced.
Thanks
I found out that my problem is air in the fuel. My truck stalled and would not restart for me, so i pushed in the shreader valve on the fuel filter housing and found pressure but just air.
My question is that i have the grey caps on my fuel injectors and i am not shure if i have to replaced the injectors or the caps or what? Also what else would be common places for air to enter the fuel system? Or is there any way to test for this problem?
Where is the best place to order parts?
I want to take care of this for good so anything that could be apart of this from old age/rust is going to be replaced.
Thanks
Lead Driver
Joined: Jan 2005
Posts: 7,782
Likes: 221
From: Huntington Indiana
If you have grey caps and hoses - they are original equip. Replace as they will leak air into fuel system letting fuel return towards fuel tank making it very hard to start. There are many threads on this "common" problem. Also look at all steel fuel lines along frame for rust as this will let air in but not leak fuel.
Senior User
Joined: Sep 2007
Posts: 369
Likes: 0
From: halstead,Ks
The small hoses on top of Your injectors are on the return side they may leak fuel out but not air in.
If Your getting air in it would be somewhere in the line from Your transfer pump back to Your tanks.
After the transfer pump the system is under pressure all the way to the injection pump.
There is a small line going from the top of Your fuel filter housing to a T in the return hoses on top of Your injectors. This is to let air out of the filter as a self bleeder. All the return lines tie together at the back of the engine and return to tank.
If Your getting air in it would be somewhere in the line from Your transfer pump back to Your tanks.
After the transfer pump the system is under pressure all the way to the injection pump.
There is a small line going from the top of Your fuel filter housing to a T in the return hoses on top of Your injectors. This is to let air out of the filter as a self bleeder. All the return lines tie together at the back of the engine and return to tank.
New User
Joined: Feb 2008
Posts: 12
Likes: 0
After replacing the injectors , fuel lines and pump, I found a pin sizy hole , well two of them, in the steel lines. THey had been rubbing the frame for some time. just inside the frame at the right tire(pasenger). and one under the front cross member. WHAT a difference new lines have made!
