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XJ Ask the Question Thread
THE Admin
Join Date: Sep 2010
Location: Lantana, Fl
Posts: 34,036
Received 231 Likes
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187 Posts
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
For next time, be sure to PM Morris4x4 here for your discount code. Or if you call, be sure to ask for Jessie, Hugo or John and tell them you are with Lee on CherokeeForum to receive the same.
Anyone besides XJwonders live up near Quadratec? If so, please let me know. Would be nice to have them as a vendor as well.
Anyone besides XJwonders live up near Quadratec? If so, please let me know. Would be nice to have them as a vendor as well.
CF Veteran
Join Date: Oct 2013
Location: Greenville, SC
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165 Posts
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Originally Posted by Outlaw Star
For next time, be sure to PM Morris4x4 here for your discount code. Or if you call, be sure to ask for Jessie, Hugo or John and tell them you are with Lee on CherokeeForum to receive the same.
Anyone besides XJwonders live up near Quadratec? If so, please let me know. Would be nice to have them as a vendor as well.
Anyone besides XJwonders live up near Quadratec? If so, please let me know. Would be nice to have them as a vendor as well.
THE Admin
Join Date: Sep 2010
Location: Lantana, Fl
Posts: 34,036
Received 231 Likes
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187 Posts
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
I live right by them and they know me well. Any issues, they will try to resolve. Someone only received 1 leaf spring in a kit. After the Postal Service had a claim filed against them, I went down, talked to them, they confirmed with the PS and Overnighted our member a new spring.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
Posts: 21,029
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3 Posts
Year: 1993 YJ Wrangler
Engine: 4.0 I6
Opinions on whether or not a 23 year old fuel pump should be preemptively replaced? I'm getting ready to swap tanks, and I'll definitely be replacing the sock (filter) on the pick-up tube. I'm trying to decide if I should just replace the pump while I'm at it.
I'm leaning toward keeping the original one until it dies, unless it's in really bad shape when I pull it.
I'm leaning toward keeping the original one until it dies, unless it's in really bad shape when I pull it.
Last edited by NewKindOfClown; 12-03-2016 at 01:40 PM.
Senior Member
Opinions on whether or not a 23 year old fuel pump should be preemptively replaced? I'm getting ready to swap tanks, and I'll definitely be replacing the sock (filter) on the pick-up tube. I'm trying to decide if I should just replace the pump while I'm at it.
I'm leaning toward keeping the original one until it dies, unless it's in really bad shape when I pull it.
I'm leaning toward keeping the original one until it dies, unless it's in really bad shape when I pull it.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
It's my '93 Wrangler. I guess part of my question would be about the reputation of aftermarket sending unit/pump assemblies. I know to avoid Airtex, but I have several options regarding branding. For $250, I'm trying to decide if it would be preventative maintenance or if an aftermarket pump would be more likely to fail.
CF Veteran
Join Date: Oct 2013
Location: Greenville, SC
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Originally Posted by NewKindOfClown
It's my '93 Wrangler. I guess part of my question would be about the reputation of aftermarket sending unit/pump assemblies. I know to avoid Airtex, but I have several options regarding branding. For $250, I'm trying to decide if it would be preventative maintenance or if an aftermarket pump would be more likely to fail.
CF Veteran
Sorry, I didn't mean to derail the thread. I jusy like learning this kind of stuff and I know most of you in here know a lot more than me.
What do you mean by constant? Isn't exhaust pressure more like alternating waves of pressure? Especially since the 1rst and 6th cylinder have further to travel? Depending where the crack is I could see the pressure waves interacting in strange or unexpected ways. There's a ton of variables to account for too.
That would be great. Anyone with access to the DRB(or whatever it is) tool that could record some data? Wonder if someone like the guys from Roadkill that have the engine masters show would take on this question to prove or disprove it?
the venturi effect is real. however, no measurable results will occur because of a minute crack in the exhaust manifold of a stock jeep. i've seen very slight changes caused my exhaust leaks in a/f occur on 600+ hp small cube, boosted engines with egt on all cylinders and a/f on both banks. it does and will occur, but not on this stuff.
We have no clue on how big of a crack it is. Thats why I said it is possible. And this is a different system than a race motor. On a Ford EEC and the GM ECU, the downstream is just a CEL tripper, not so much on the ChryCo. On CA style ECUs, it helps finer adjust the upstream O2 voltage.
I'm just saying that this whole theory of a crack in an exhaust manifold causing drastic changes in O2 sensor readings, and causing major driveability problems is unfounded.
Show me some proof. There's a gajillion 4.0s out there running around with exhaust cracks.....not experiencing driveability issues.
Show me some proof. There's a gajillion 4.0s out there running around with exhaust cracks.....not experiencing driveability issues.
CF Veteran
Join Date: Mar 2012
Location: Quebec
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Year: 1996
Model: Cherokee
Engine: 4.0L
i can vouch that i have a pretty significant crack in my exhaust manifold and it runs 100% other than slightly ticking when i first starting it up in the morning, and it is that way since i first got it end of 2011.
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Join Date: Aug 2011
Location: Prescott, Az
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
It's my '93 Wrangler. I guess part of my question would be about the reputation of aftermarket sending unit/pump assemblies. I know to avoid Airtex, but I have several options regarding branding. For $250, I'm trying to decide if it would be preventative maintenance or if an aftermarket pump would be more likely to fail.
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,875
Received 1,526 Likes
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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