Fuel Pump issue
#1
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Fuel Pump issue
Hello, I drive a 2001 Jeep Cherokee XJ with the 4.0 motor, and 214k miles automatic. I have heard things about the dreaded fuel pressure drop which causes you to have to turn the key 2-3 times to get it started, which my Jeep just developed after I changed the fuel tank gasket due to evap code leak. So I have been told it could be my fuel rail leaking, or the check valve in the fuel pump. Well today, as I was going about my business, I turned my Jeep on on the 3rd try, and my check engine light started to blink. So I ran the codes and they were misfire codes for cylinders 5 and 6. Could this be because I need a new fuel pump completely? I assume my fuel pump isn't getting fuel to the engine like normal because the cylinders are firing off beat. How could I fix this? By changing the whole fuel pump? Or do I have a bigger issue?
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
test the fuel pressure with a gauge you can borrow from a parts house.
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#4
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Year: 1990
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Yes. There is a fitting on there.
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Year: 1990
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#10
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Year: 97
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Time for a bluetooth sender unit and smartphone software to fit that fitting... What do you think? So it can be monitored while driving and differing load conditions
Thank you my friend for your kind words when I came back. Just needed to let you know I did catch that Cruiser and appreciate it very much Sir.
Thank you my friend for your kind words when I came back. Just needed to let you know I did catch that Cruiser and appreciate it very much Sir.
#11
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Time for a bluetooth sender unit and smartphone software to fit that fitting... What do you think? So it can be monitored while driving and differing load conditions
Thank you my friend for your kind words when I came back. Just needed to let you know I did catch that Cruiser and appreciate it very much Sir.
Thank you my friend for your kind words when I came back. Just needed to let you know I did catch that Cruiser and appreciate it very much Sir.
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They have wireless bluetooth technology for our code reader plug that works with a smartphone, quite well actually and cheaper than a code reader. Why not make one that taps the fuel line in systems that do not have a pressure sensor so that it can be monitored in real time while driving it under load and Etc. Having proper pressure sitting at an idle is not always accurate to what you might be getting under load and high flow conditions.
Last edited by Bugout4x4; 09-30-2017 at 03:08 PM.