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Unread 09-28-2012, 10:19 PM   #1
matt62
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Hesitation with low fuel

I have a 98 cherokee 4.0. I've had some hesitation with the engine cutting out upon acceleration, especially with the shift from first to second gear, when my fuel is low. I also have the engine cutting out when I corner, or when I go around a pretty sharp curve. This is all with low fuel. It doesn't have to be quite as low When I'm cornering. I'm assuming this is some kind of fuel filter issue? I put a couple bottles of heat in, and it didn't seem to do make a difference. Any ideas?

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Unread 09-29-2012, 07:11 AM   #2
CJ7-Tim
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Check for wire harness issues under the hood and at the fuel pump. Test the fuel pressure. You should have 49 +/- 5 psi of fuel pressure.

It is possible that you have a fuel pump issue such as a loose or clogged filter or a dislodged fuel pick up.
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Unread 09-29-2012, 09:38 AM   #3
Saudade
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How low is "low"?
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Unread 09-29-2012, 09:48 AM   #4
matt62
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Pretty low. For the cornering thing below an 1/8, for the acceleration thing, just above the E-line. Maybe a gallon and a half or 2 of fuel. Is when it starts. I was thinking sediment or fuel filter, but I wanted to see if there was some other idea before I pull the tank.
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Unread 09-29-2012, 03:52 PM   #5
tjwalker
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You are probably going to end up pulling the tank. And if you do this, I'd have a fresh fuel pump assembly ready to install. My favorite is Bosch, followed by Carter. You get what you pay for with fuel pump assemblies. Do not buy an "el-cheapo" or a "no-name" unit and do not buy an Airtex. That is unless you like doing things twice....

BTW, not a good idea in my opinion to run your gas tank that low. Both for picking up sediment and cooling. Fuel is what cools your fuel pump. As a matter of course, I don't go below 1/8th of a tank before refilling.
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Unread 09-29-2012, 08:34 PM   #6
matt62
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Thanks. I usually fill whenever I get remotely low, but twice I haven't. But on cornering, it doesn't have to be super low. That's the weird thing
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