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#9811
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Year: 1991
Model: Cherokee
Engine: 4.0L H.O.
the reason it went though the floor is because you reset the computer. That resets the factory Air/Fuel trim settings. The computer needs to relearn what are the proper settings for your truck now. It takes up to 50 start-up cycles for it to do this.
note that in this sense a start-up cycle = full engine warmup (usually about 20-30 minutes of driving).
note that in this sense a start-up cycle = full engine warmup (usually about 20-30 minutes of driving).
So I just need to be patient and let it learn.... Hmmm sucks
It should get better though after it levels out right?
Thank you very much Dukie
#9812
CF Veteran
Join Date: Mar 2009
Location: Tenn. and Mich.
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Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
I wouldn't count on it. You installed a larger throttle body to allow more air into the engine, so that will need more fuel also to compensate.
#9814
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Year: 1991
Model: Cherokee
Engine: 4.0L H.O.
60mm thanks for the info.
#9815
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#9816
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Year: 1991
Model: Cherokee
Engine: 4.0L H.O.
#9817
Newbie
Join Date: Feb 2012
Location: Maine
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Year: 1997
Model: Cherokee
Engine: 4.0 HO
No, I have it in only 2wd on the road cuz the roads arent bad. At first I thought it might be my 4wd but its not cuz I just replaced it a few months ago... so I'm thinkin possibly my u-joints?
#9818
Seasoned Member
Join Date: Jul 2011
Location: Murray, UT
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
Over the past few weeks, my lights have been too dim for comfort because the voltage has been low. Not so low that it's harmful to the battery, but low enough to be annoying. It seems to sit around 12 volts instead of up by 14, like I feel it should be. I work at Batteries Plus and have the ability to check my charging system, but that has brought up no red flags. So my question is: where do I start? It's an 89, I know it's all old, but the previous owner claimed it was a newer, lower mileage motor, so one would assume that the alternator would be newer as well. So do I start/go straight to the ECU(voltage regulator)? Or start with the alternator anyway? The more I work on it, the less I begin to think of the shop that did the swap. I want the proper solution, and I want my headlights to actually serve their function again.
#9819
Senior Member
Join Date: Jan 2011
Location: N. IL
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Year: 2000
Model: Cherokee
Engine: 4.0
Over the past few weeks, my lights have been too dim for comfort because the voltage has been low. Not so low that it's harmful to the battery, but low enough to be annoying. It seems to sit around 12 volts instead of up by 14, like I feel it should be. I work at Batteries Plus and have the ability to check my charging system, but that has brought up no red flags. So my question is: where do I start? It's an 89, I know it's all old, but the previous owner claimed it was a newer, lower mileage motor, so one would assume that the alternator would be newer as well. So do I start/go straight to the ECU(voltage regulator)? Or start with the alternator anyway? The more I work on it, the less I begin to think of the shop that did the swap. I want the proper solution, and I want my headlights to actually serve their function again.
#9820
Newbie
Join Date: Feb 2012
Location: Ontario, Canada
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Model: Cherokee
Noob question, for a guy looking for a cherokee for a daily driver, and minor mods for light wheeling :
How common is the dana 35 ( with or without abs ) ? I know that a 8.25 is the better rear end, but are they hard to find in a factory original 97-01 cherokee, because most newer cherokee's have abs brakes ?
I plan on giving my cherokee a 3 inch lift, and 30's or 31's..... Will a dana 35 handle that ? If I can't find myself a xj with a 8.25.
If a dana 35 cant handle a 3" lift with 31's, then I will make sure that I strictly look for a cherokee with a 8.25 rear end....but if a D35 can handle it, then I won't worry if I get a cherokee with it.
How common is the dana 35 ( with or without abs ) ? I know that a 8.25 is the better rear end, but are they hard to find in a factory original 97-01 cherokee, because most newer cherokee's have abs brakes ?
I plan on giving my cherokee a 3 inch lift, and 30's or 31's..... Will a dana 35 handle that ? If I can't find myself a xj with a 8.25.
If a dana 35 cant handle a 3" lift with 31's, then I will make sure that I strictly look for a cherokee with a 8.25 rear end....but if a D35 can handle it, then I won't worry if I get a cherokee with it.
#9821
Junior Member
Join Date: Jan 2012
Location: Pennsylvania
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Year: 1999
Model: Cherokee
Engine: 4.0
Noob question, for a guy looking for a cherokee for a daily driver, and minor mods for light wheeling :
How common is the dana 35 ( with or without abs ) ? I know that a 8.25 is the better rear end, but are they hard to find in a factory original 97-01 cherokee, because most newer cherokee's have abs brakes ?
I plan on giving my cherokee a 3 inch lift, and 30's or 31's..... Will a dana 35 handle that ? If I can't find myself a xj with a 8.25.
If a dana 35 cant handle a 3" lift with 31's, then I will make sure that I strictly look for a cherokee with a 8.25 rear end....but if a D35 can handle it, then I won't worry if I get a cherokee with it.
How common is the dana 35 ( with or without abs ) ? I know that a 8.25 is the better rear end, but are they hard to find in a factory original 97-01 cherokee, because most newer cherokee's have abs brakes ?
I plan on giving my cherokee a 3 inch lift, and 30's or 31's..... Will a dana 35 handle that ? If I can't find myself a xj with a 8.25.
If a dana 35 cant handle a 3" lift with 31's, then I will make sure that I strictly look for a cherokee with a 8.25 rear end....but if a D35 can handle it, then I won't worry if I get a cherokee with it.
#9822
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
However, a D35 will be fine turning 30" or 31" rubbers with light wheeling. It's when you get larger tires, steel rims, in there that stuff starts to break. If you wanted to run 33s or 35s on some Soft 8s with a lunchbox locker I'd say stay away. But if this is more a "go screw around in the woods" weekend warrior you shouldn't see an issue. Remember to always bring spares!
#9823
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Location: Clayton, NC
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Year: 1988
Model: Cherokee
Engine: 4.6L I6 Stroker with port matched +99 intake and 62mm TB
I'm going to be swapping axles soon and while I'm at it, replacing the differential/gear oil.
What do you put in there to replace the old gear oil? Any good aftermarket oil?
What do you put in there to replace the old gear oil? Any good aftermarket oil?
#9824
Seasoned Member
Join Date: Aug 2010
Location: Ashburn, VA
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Year: 2000
Model: Cherokee
Engine: 4.0
Originally Posted by onlyinajeep726
I'm going to be swapping axles soon and while I'm at it, replacing the differential/gear oil.
What do you put in there to replace the old gear oil? Any good aftermarket oil?
What do you put in there to replace the old gear oil? Any good aftermarket oil?
#9825
Seasoned Member
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Location: Murray, UT
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
Check the battery ground, and then follow the bulb ground to wherever it may ground to the frame, and clean that up? Or is it simpler even than that?