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Unread 11-23-2013, 05:37 AM   #1
Sn0wD
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1998 ZJ 
 
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Motor loses power when turning left

the motor feels like it loses a lot of power almost like cutting out when I take a hard left from a stop and giving it gas... Anyone have any idea what might be going on? Also it has a full tank of gas but does it more often when it's lower on gas close to E

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Unread 11-23-2013, 05:57 AM   #2
MTBlue
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Quote:
Originally Posted by Sn0wD
the motor feels like it loses a lot of power almost like cutting out when I take a hard left from a stop and giving it gas... Anyone have any idea what might be going on? Also it has a full tank of gas but does it more often when it's lower on gas close to E
Only thing that comes to my mind is that your fuel pump is going out...
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Unread 11-23-2013, 07:59 AM   #3
johns1mj
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Possible wire short caused by body roll?
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Unread 11-23-2013, 08:22 AM   #4
ZeeJay1997
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Originally Posted by MTBlue View Post
Only thing that comes to my mind is that your fuel pump is going out...
i'll give another vote for fuel pump
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Unread 11-23-2013, 10:41 AM   #5
PolkaPower
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Same thing mine did when the pump was going out.
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Unread 11-23-2013, 11:15 AM   #6
Sn0wD
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Give or take how much longer does it have in y'all's experiences?
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Unread 11-23-2013, 11:19 AM   #7
ZeeJay1997
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don't venture out too far from the house
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Unread 11-23-2013, 11:38 AM   #8
PolkaPower
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I drove around for a few months like that. I used to smack the fuel tank with a rubber mallet before I started it up. Eventually it just got to the point where I had to play with the gas pedal while driving straight to keep it going. I replaced it after that. Took a couple hours. It's bad to the motor to run it like that because it's being starved of fuel. This was on my first ZJ. I would never let it get that way on this one.
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Unread 11-23-2013, 12:27 PM   #9
bigbill888
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I once had a 95 ZJ and the radio would always die when I turned the steering wheel to the left. Maybe a similar issue? I struggled with it for some time and never found the problem before the Jeep was totalled...
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Unread 11-23-2013, 12:37 PM   #10
PolkaPower
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Quote:
Originally Posted by bigbill888 View Post
I once had a 95 ZJ and the radio would always die when I turned the steering wheel to the left. Maybe a similar issue? I struggled with it for some time and never found the problem before the Jeep was totalled...
Yep the fuel pump in the radio was going south. Every time you turned it would slosh the fuel away from the pump and cause the radio to stall. Especially when the radio was low on gas.

Seriously though the fuel pump is more on the drivers side of the tank. It would make sense that a weak pump would stall when turning left while low since the gas would be slung to the other side.
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Unread 11-23-2013, 01:40 PM   #11
bigbill888
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Don't go changing out the fuel pump until you have tested it and have certainty that it is bad. It is expensive, a PITA, and changing it out is somewhat dangerous. "Sounds like a fuel pump" isn't enough.
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95 ZJ Limited, 4.0, 242, 140K
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Unread 11-23-2013, 01:42 PM   #12
PolkaPower
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It's not dangerous if you are not dumb. It takes about an hour but it is not cheap. If it's your first time it will take longer. Just make sure you are very low on fuel. Switch the relays around to see if that may be the issue.
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Unread 11-23-2013, 01:47 PM   #13
ZeeJay1997
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49 psi plus or minus 5 at all throttle ranges.
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Unread 11-23-2013, 01:50 PM   #14
Sn0wD
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I'm all about narrowing down my options... How would I go by testing it?
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Unread 11-23-2013, 02:04 PM   #15
ZeeJay1997
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find a parts store that has loaner tools. there's a port on the fuel rail. screw it on, crank it up, jab the throttle, watch the gauge.
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