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XJ Ask the Question Thread
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
Posts: 12,692
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Shouldn't be an issue thwarting uniden. Never used it but alot of truckers always say its not always the unit but the wiring, the mount and the Mic that makes a difference. Rice crispie boxes are a different story
CF Veteran
Join Date: May 2011
Location: Glendale,Az
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Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
That's my problem. The airtex matched up with the one I had in the tank originally but when I just tried to buy the pumps at Autozone they didnt fit the original bracket and I actually somehow "Melted/powderized" the fuel residue on the first pump I tried installing on the factory bracket. I burned the pump up and the gas had powderized to the pump in a white filmy powder. It was weird. So I just swapped the sending unit with the only one they offered. Now I believe I need another sending unit/pump.
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
Posts: 18,251
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
That's what you get with Airtex... They have an extremely bad name for being unreliable pieces of ****. My advice is to get a quality unit.
CF Veteran
Join Date: Oct 2011
Location: South Mills, NC
Posts: 1,812
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Year: 1998
Model: Cherokee
Engine: Rebuilt 4.0L I6
That's my problem. The airtex matched up with the one I had in the tank originally but when I just tried to buy the pumps at Autozone they didnt fit the original bracket and I actually somehow "Melted/powderized" the fuel residue on the first pump I tried installing on the factory bracket. I burned the pump up and the gas had powderized to the pump in a white filmy powder. It was weird. So I just swapped the sending unit with the only one they offered. Now I believe I need another sending unit/pump.
CF Veteran
Join Date: May 2011
Location: Glendale,Az
Posts: 1,458
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Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
I plan to buy a fuel pressure gauge today to verify my pressure.
My question is when the gauge is attached to the rail what is normal pressure and what should I look for? 38psi?
Would the pressure change with rpm change or should it be steady at any throttle point?
My question is when the gauge is attached to the rail what is normal pressure and what should I look for? 38psi?
Would the pressure change with rpm change or should it be steady at any throttle point?
CF Veteran
Join Date: May 2011
Location: Glendale,Az
Posts: 1,458
Likes: 0
Received 2 Likes
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2 Posts
Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
Posts: 18,251
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Received 13 Likes
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Seasoned Member
Join Date: May 2012
Location: Ware Shoals, SC
Posts: 436
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Year: 1993
Model: Cherokee
Engine: 4.0L