Ryannn
Posted a lot
Posts: 2,421
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Hi all,
Picked up a 1998 4.0 petrol Cherokee last night, it has a strange but I suspect simple problem.
Can drive fine for miles and miles without issue. But occasionally, when you give it the beans, it’ll splutter, cut out and won’t restart.
The only way to fix it is by giving the petrol tank a swift kick. Jump back in and away you go!
It feels like it must be a fuel pump/filter issue so just wondering if there’s anything else obvious I’m overlooking!
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Checked the fuel lines? Years ago i had a problem the same, making more demands on the engine collapsed a dodgy bit of line, that was a mechanical pump tho’
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Rich
Club Retro Rides Member
Posts: 6,239 
Club RR Member Number: 160
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Jeep Grand Cherokee Fuel Pump Fault?Rich
@foxmcintyre
Club Retro Rides Member 160
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Sounds exactly like a pump fault. I’m not sure where the hp pump is on a grand, but if thumping the tank gets it going again then I think you are in the right area.
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squonk
Part of things
Posts: 858
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Is the fuel filler vent blocked?
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2004 Chevrolet Avalanche Z71
2005 Mercedes CLK320 Cabriolet
1996 Mercedes C180 Elegance Auto Saloon
1996 Rover 620Ti (Dead fuel pump)
1992 Toyota HiLux Surf
1987 Range Rover Vogue (Rusty)
1992 Range Rover Vogue SE (More Rusty)
2006 Chrysler Grand Voyager
2008 Corsa 1.4 Design
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Ryannn
Posted a lot
Posts: 2,421
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Sounds exactly like a pump fault. I’m not sure where the hp pump is on a grand, but if thumping the tank gets it going again then I think you are in the right area. It’s in the top of the tank... so you have to take it out! |
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Ryannn
Posted a lot
Posts: 2,421
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Is the fuel filler vent blocked? No idea, what’s the best way to check? |
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squonk
Part of things
Posts: 858
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When the fault happens remove the fuel cap. You may hear a rush of air as you remove it. Then try starting it up. If it starts its likely that as fuel is drawn from the tank a vacuum is created in the tank to the point where the pump isn't powerfull enough to overcome the vacuum.
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2004 Chevrolet Avalanche Z71
2005 Mercedes CLK320 Cabriolet
1996 Mercedes C180 Elegance Auto Saloon
1996 Rover 620Ti (Dead fuel pump)
1992 Toyota HiLux Surf
1987 Range Rover Vogue (Rusty)
1992 Range Rover Vogue SE (More Rusty)
2006 Chrysler Grand Voyager
2008 Corsa 1.4 Design
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They've not been kind enough at jeep to put an access hatch above it in the floor have they?
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Ryannn
Posted a lot
Posts: 2,421
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They've not been kind enough at jeep to put an access hatch above it in the floor have they? Lol nope! |
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