Jeide
New Member
- Joined
- Aug 25, 2023
- Messages
- 12
- Reaction score
- 7
- Points
- 3
- Location
- San Diego
- Vehicle Year
- 2000
- Make / Model
- Ford/Ranger
- Transmission
- Automatic
The good news is that I may have found the source of my P0443 trouble code. My truck has been running great ever since I replaced the engine a year ago. The other day, on my way home, I stopped by the store for a couple of minutes and when I went to leave, the truck would not turn over. I started checking the electrical and noticed a strong smell of gasoline from the engine compartment. I looked around and thought I saw a break in the hose connecting the fuel rails. I was wrong, what I saw was a broken piece of hose not attached to anything but sitting in the same area. Since I had it apart, I replaced the upper intake manifold gasket and injector orings. When I got her back together, I got her to start but running very rough with occasional blue smoke and a drop in power. The fuel pump runs. There was fuel coming from the vacuum hose connected to the fuel damper which indicates a break in the dampers diaphragm. I will be replacing that. When I pulled the other end of that vacuum hose from the nipple at the rear of the intake manifold a significant amount of fuel came out making me wonder if the manifold was the source of the leak. Is this possible? There is also a smell of gasoline to the oil on the dipstick which indicates an injector stuck open. Right now I can get her to start. When I turn the key, the fuel pressure barely registers. I vacuum tested the damper and the gauge would go up but quickly fall to zero. But I can't rule out the possibility that my Mickey Mouse gauge setup might be leaking. My main question is could there be any other way for fuel to get into the intake manifold vacuum other than from the damper? Any other things that I can check for? I understand that the fuel pressure regulator is in the tank. Could a problem there be causing any of this? Thank you in advance for any help that you can give.