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Post by mike on May 13, 2015 11:26:11 GMT -6
I went by there last night to bring some tools and help him button up this little project. Its turning over fine. It has no fuel pressure at the rail. You can hear the pump run and there's fuel in it but it doesn't seem to be pumping fuel.
We tried for half hour or so turning it off and on and checking the pressure at the rail bleeder valve and never got a drop of fuel out of it.
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Post by mpdxtreme on May 13, 2015 11:44:41 GMT -6
fuel filter maybe? Does the Cherokee have 2 fuel pumps or just one?
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Post by 06blackmax on May 13, 2015 12:16:48 GMT -6
Pressure and return lines connected at the right locations and not reversed?
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Post by James on May 13, 2015 13:54:24 GMT -6
 I have seen this happen more than once!!
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Post by Off_Road_Teacher on May 13, 2015 14:45:26 GMT -6
I didn't pull the fuel line though and I labeled every fuel injector
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Post by Somebody on May 13, 2015 15:13:18 GMT -6
Any puddles?? May have either cut a line or kinked it while removing parts..
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Post by BEN on May 13, 2015 16:03:43 GMT -6
Is there gas in it?
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Post by MJL on May 13, 2015 16:26:30 GMT -6
fuel filter maybe? Does the Cherokee have 2 fuel pumps or just one? Just one |
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Post by Off_Road_Teacher on May 13, 2015 17:00:55 GMT -6
No puddles
Pushed it back onto my driveway so haven't noticed anything
Half tank of gas in it
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Post by Off_Road_Teacher on May 13, 2015 18:38:43 GMT -6
I have checked every wire, every cable and I am lost
You can hear the fuel pump but still not working
Any other ideas
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Post by BEN on May 13, 2015 18:48:17 GMT -6
I can come over tomorrow evening and take a look. Idk if I can see anything but another set of eyes could help
Find a place you can take the fuel line apart (like before the filter) and cycle the key. See if you get any fuel, if so.... Then try after the filter, etc...
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Post by Somebody on May 13, 2015 19:47:13 GMT -6
I can come over tomorrow evening and take a look. Idk if I can see anything but another set of eyes could help Find a place you can take the fuel line apart (like before the filter) and cycle the key. See if you get any fuel, if so.... Then try after the filter, etc... This!! Start at the fuel pump.. take the connection off and start the pump... see if it's even pumping anything out of the pump itself.. then work your way up to the fuel rail.. |
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Post by Off_Road_Teacher on May 13, 2015 19:49:43 GMT -6
I can come over tomorrow evening and take a look. Idk if I can see anything but another set of eyes could help Find a place you can take the fuel line apart (like before the filter) and cycle the key. See if you get any fuel, if so.... Then try after the filter, etc... If I didn't have to work at the zone then that'd be great But I checked the line and doesn't appear to be bent but I'll look Tomo before I go to autozone. Before I did the swap I was having issues cranking it, it would never crank on first try and usually took two to three times to crank up |
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Post by BEN on May 13, 2015 20:40:47 GMT -6
Sounds like pressure regulator for the "before issue" or a leak down
But you should have pressure at the fuel rail regardless
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Post by davidsyj on May 14, 2015 7:25:02 GMT -6
Is it firing? Is there spark at the plugs? That system may only be pressurized when the pump is running...
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I have seen this happen more than once!!
Just remember...we give them back in 10 months 
It's alive!! 
