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67 Posts
Hello all.
Two weeks ago I replaced my fuel pump and everything went smoothly. Approximately four days later my car would not start and I was not getting any fuel or pressure to the rail.
I then dropped the tank again and found that the three inch piece of high pressure hose that connects the top of the fuel pump to the sending unit had began to tear. I also noticed that the sending unit seemed slightly bent but I didn't think much of it at the time.
I replaced the three inch hose, put the tank back up and everything seemed to be back to normal. Running strong and smooth. Two days later my jeep would not start again. I had the same symptoms as before, no pressure or fuel to the rail.
So today I dropped the tank again and this time I noticed that the tank looks like its collapsing and the sending unit was noticeably bent and contorted. I bent the sending unit back into shape and replaced the small hose once more. I also tested the pump and unit before placing it back in the tank. Everything worked perfectly until I put the sending unit into the tank. For some reason once I get the sending unit into the tank and the tank jacked up with all of the vacuum lines and hoses connected the pump will not turn on. I checked this twice and dropping a tank two times in one night is too many.
So I'm looking for any reasons or ideas of
1. Why is my tank contorting and bending the sending unit? This is causing the three inch hose from pump to sending unit to tear repeatedly. Can this be dangerous?
2. Why would my fuel pump not engage only when in the fuel tank ?
3. At the end of the sending unit there's a small rubber grommet that I believe fits onto the end of the return line. I lost this and don't know if its of any significance. Anyone know?
Any ideas or advice would be much appreciated.
Two weeks ago I replaced my fuel pump and everything went smoothly. Approximately four days later my car would not start and I was not getting any fuel or pressure to the rail.
I then dropped the tank again and found that the three inch piece of high pressure hose that connects the top of the fuel pump to the sending unit had began to tear. I also noticed that the sending unit seemed slightly bent but I didn't think much of it at the time.
I replaced the three inch hose, put the tank back up and everything seemed to be back to normal. Running strong and smooth. Two days later my jeep would not start again. I had the same symptoms as before, no pressure or fuel to the rail.
So today I dropped the tank again and this time I noticed that the tank looks like its collapsing and the sending unit was noticeably bent and contorted. I bent the sending unit back into shape and replaced the small hose once more. I also tested the pump and unit before placing it back in the tank. Everything worked perfectly until I put the sending unit into the tank. For some reason once I get the sending unit into the tank and the tank jacked up with all of the vacuum lines and hoses connected the pump will not turn on. I checked this twice and dropping a tank two times in one night is too many.
So I'm looking for any reasons or ideas of
1. Why is my tank contorting and bending the sending unit? This is causing the three inch hose from pump to sending unit to tear repeatedly. Can this be dangerous?
2. Why would my fuel pump not engage only when in the fuel tank ?
3. At the end of the sending unit there's a small rubber grommet that I believe fits onto the end of the return line. I lost this and don't know if its of any significance. Anyone know?
Any ideas or advice would be much appreciated.