Video - Losing fuel pressure under throttle
06-18-2017, 10:10 AM
#1
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Year: 1999
Model: Cherokee
Engine: 4.0
Video - Losing fuel pressure under throttle
99 4.0 Auto. Sorry for exhaust leak noise.
See below the link to a video I took. Getting 45 PSI at idle, and under light driving. Under heavy throttle, the Jeep dies out, and you can see my pressure drop to 10-20 psi.
I had been through some water, and concerned that my pump is bad. Before I drop the tank and order a new one, does anyone think this wouldnt be my issue?!?
Also, noted that the hard line from the tank to the Charcoal canister/box is broken, so Ill replace that at the same time.
See below the link to a video I took. Getting 45 PSI at idle, and under light driving. Under heavy throttle, the Jeep dies out, and you can see my pressure drop to 10-20 psi.
I had been through some water, and concerned that my pump is bad. Before I drop the tank and order a new one, does anyone think this wouldnt be my issue?!?
Also, noted that the hard line from the tank to the Charcoal canister/box is broken, so Ill replace that at the same time.
06-18-2017, 07:09 PM
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Going through water shouldn't make any difference except you might have gotten the fuel pump wiring connectors wet.
06-18-2017, 07:14 PM
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After posting this today, I dropped my tank and it was filthy inside. Lots of dirt and definitely some water. The "return" line that goes to that Charcoal box or whatever was broken, and so I assume I was drawing water/mud in there.
What else could cause the pressure to drop like that??!?
06-18-2017, 07:21 PM
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Year: 1990
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I should have mentioned that the crossing was a failure, and it sat in there for about 10 minutes running, with the water line above the tank.
After posting this today, I dropped my tank and it was filthy inside. Lots of dirt and definitely some water. The "return" line that goes to that Charcoal box or whatever was broken, and so I assume I was drawing water/mud in there.
What else could cause the pressure to drop like that??!?
After posting this today, I dropped my tank and it was filthy inside. Lots of dirt and definitely some water. The "return" line that goes to that Charcoal box or whatever was broken, and so I assume I was drawing water/mud in there.
What else could cause the pressure to drop like that??!?
