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XJ Ask the Question Thread
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Revised 11-02-2012
* means instructions have been written.
1-Ground refreshing*
2-C101 connector refreshing**
3-Connector and relay/receptacle refreshing*
4-Coil/ICM contacts*
5-Checking sensor grounds*
6-Sensor ground upgrade**
7-CPS testing and adjusting*
8-TPS testing and adjusting*
9-ECU connector refreshing*
10-Trans plug connector refreshing*
11-Throttle body and IAC cleaning*
12-Setting your 4.0 to #1 TDC*
13-Renix Distributor indexing**
14-Restoring throttle butterfly adjustment*
15-Rear main seal diagnosis*
16-Vacuum test for exhaust restriction*
17-HO engine into Renix*
18-Improving the instrument panel ground*
19-Headlight harness installation*
20-4WD shifting tips*
21- Renix EGR valve test*
22- Renix vacuum harnesses**
23- CPS timing advance mod*
24-4.0 Engine date codes*
25-Valve cover mod*
26- Snugging up intake manifold bolts
27- CPS wiring bypass
28- Setting base idle
29- Renix O2 sensor diagnostics
https://www.cherokeeforum.com/f51/cruiser54s-mostly-renix-tips-153657/
Seasoned Member
Joined: Jan 2011
Posts: 295
Likes: 0
From: Roscoe, IL
Year: 2000
Model: Cherokee
Engine: 4.0L 242 Power Tech I6
Haha. Thanks guys! I'll look into the TPS, seems like it couldn't hurt either way. I was just thoroughly confused by the engine dying, with no light or codes being thrown.
I always appreciate all the help!
I always appreciate all the help!
Hey doublezero...I hope for your sake it is a vacuum leak ...those little doors when they stop opening and closing are a bear...or if it is the hose lines that carry the heated air. break or become disconnected..be prepared to be digging into the dash etc....not fun...our local auto body guy won't even fix his daughters heater stuff as that is what is broke or malfunctioning and it ain't worth the time and trouble and his an auto body guy!
What is the preferred brand when doing a tune up (wires, distributor, rotor)?
Are there ones to avoid? I want good solid bulletproof quality, but don't need to buy $500 overpriced for it's own sake.
Bosch?
Also, does distributor/rotor come in a single package? I just want to replace as much as I can, exclusing the CAM sensor (dissy switch plate)
RockAuto has this for "Tune Up Kit"
UNITED IGNITION WIRE Part # 3771 Includes Distributor Cap & Rotor, and PERMASHIELD Spark Plug Wires; INCLUDES: United-Packard DELCORE II wire set, OEM Cap & Rotor $17.88 Add Part
UNITED IGNITION WIRE Part # 27625 Includes Distributor Cap & Rotor, and PREMIUM Packard/Delphi Spark Plug Wires; INCLUDES: United/Delphi-Packard OEM Silicone wire set, Heavy Duty Cap & Rotor w/ BRASS contacts $23.89
Are there ones to avoid? I want good solid bulletproof quality, but don't need to buy $500 overpriced for it's own sake.
Bosch?
Also, does distributor/rotor come in a single package? I just want to replace as much as I can, exclusing the CAM sensor (dissy switch plate)
RockAuto has this for "Tune Up Kit"
UNITED IGNITION WIRE Part # 3771 Includes Distributor Cap & Rotor, and PERMASHIELD Spark Plug Wires; INCLUDES: United-Packard DELCORE II wire set, OEM Cap & Rotor $17.88 Add Part
UNITED IGNITION WIRE Part # 27625 Includes Distributor Cap & Rotor, and PREMIUM Packard/Delphi Spark Plug Wires; INCLUDES: United/Delphi-Packard OEM Silicone wire set, Heavy Duty Cap & Rotor w/ BRASS contacts $23.89
Last edited by BimmerJeeper; Dec 19, 2012 at 11:10 AM.
Revised 11-02-2012
* means instructions have been written.
1-Ground refreshing*
2-C101 connector refreshing**
3-Connector and relay/receptacle refreshing*
4-Coil/ICM contacts*
5-Checking sensor grounds*
6-Sensor ground upgrade**
7-CPS testing and adjusting*
8-TPS testing and adjusting*
9-ECU connector refreshing*
10-Trans plug connector refreshing*
11-Throttle body and IAC cleaning*
12-Setting your 4.0 to #1 TDC*
13-Renix Distributor indexing**
14-Restoring throttle butterfly adjustment*
15-Rear main seal diagnosis*
16-Vacuum test for exhaust restriction*
17-HO engine into Renix*
18-Improving the instrument panel ground*
19-Headlight harness installation*
20-4WD shifting tips*
21- Renix EGR valve test*
22- Renix vacuum harnesses**
23- CPS timing advance mod*
24-4.0 Engine date codes*
25-Valve cover mod*
26- Snugging up intake manifold bolts
27- CPS wiring bypass
28- Setting base idle
29- Renix O2 sensor diagnostics
https://www.cherokeeforum.com/f51/cruiser54s-mostly-renix-tips-153657/
Is there something line this for 1998-2001 XJ's? I'd like to clean all the grounds but have not been able to find an illustrated checklist.
Member
Joined: May 2010
Posts: 116
Likes: 1
From: Gads Hill, Ontario
Year: 1996
Model: Cherokee
Engine: 4.0
On my '98 ZJ, the rear wiper will not run if the tailgate or rear glass is open. (Not shown in my Haynes manual wiring diagram
).Check the tailgate and glass switches.
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
What is the preferred brand when doing a tune up (wires, distributor, rotor)?
Are there ones to avoid? I want good solid bulletproof quality, but don't need to buy $500 overpriced for it's own sake.
Bosch?
Also, does distributor/rotor come in a single package? I just want to replace as much as I can, exclusing the CAM sensor (dissy switch plate)
RockAuto has this for "Tune Up Kit"
UNITED IGNITION WIRE Part # 3771 Includes Distributor Cap & Rotor, and PERMASHIELD Spark Plug Wires; INCLUDES: United-Packard DELCORE II wire set, OEM Cap & Rotor $17.88 Add Part
UNITED IGNITION WIRE Part # 27625 Includes Distributor Cap & Rotor, and PREMIUM Packard/Delphi Spark Plug Wires; INCLUDES: United/Delphi-Packard OEM Silicone wire set, Heavy Duty Cap & Rotor w/ BRASS contacts $23.89
Are there ones to avoid? I want good solid bulletproof quality, but don't need to buy $500 overpriced for it's own sake.
Bosch?
Also, does distributor/rotor come in a single package? I just want to replace as much as I can, exclusing the CAM sensor (dissy switch plate)
RockAuto has this for "Tune Up Kit"
UNITED IGNITION WIRE Part # 3771 Includes Distributor Cap & Rotor, and PERMASHIELD Spark Plug Wires; INCLUDES: United-Packard DELCORE II wire set, OEM Cap & Rotor $17.88 Add Part
UNITED IGNITION WIRE Part # 27625 Includes Distributor Cap & Rotor, and PREMIUM Packard/Delphi Spark Plug Wires; INCLUDES: United/Delphi-Packard OEM Silicone wire set, Heavy Duty Cap & Rotor w/ BRASS contacts $23.89
$55 shipped from Summit racing.com
Good stuff IMO.
Senior Member
Joined: Dec 2011
Posts: 669
Likes: 0
From: Central Arkansas
Year: 1996
Model: Cherokee
Engine: 4.0L
Does anyone think My YJ Tires will fit on the Cherokee? I'm going to snow country and would rather have the more aggressive tread...
I believe the YJ tires are 31s.
I believe the YJ tires are 31s.
CF Veteran

Joined: Apr 2011
Posts: 3,493
Likes: 0
From: Chickamauga Ga.
Year: 2000
Model: Cherokee
Engine: 4.0
Originally Posted by Devodale
Does anyone think My YJ Tires will fit on the Cherokee? I'm going to snow country and would rather have the more aggressive tread...
I believe the YJ tires are 31s.
I believe the YJ tires are 31s.
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
They'll probably fit. Might hit the front bumpercap, if so just take them off. We put 31's on my buddies ol junker cherokee he had and it didnt really rub at all on stock lift.. And it actually had the same wheels on it as your wrangler. Rubbed the LCA's when you turned the wheel all the way, but other than that it did decent. Hell try it, if it dont work trade em back.





