making my trip to napa today
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
doing a complete tune up
premium plugs, wires, cap, rotor, fuel filter, air filter, 02 sensor
engine degrease and cleanup
new radiator and hoses
can someone add to this list?
Edit: ehh this feels more like chat now that I post it. I dunno
premium plugs, wires, cap, rotor, fuel filter, air filter, 02 sensor
engine degrease and cleanup
new radiator and hoses
can someone add to this list?
Edit: ehh this feels more like chat now that I post it. I dunno
Seasoned Member
Joined: Jan 2011
Posts: 434
Likes: 0
From: NJ
Year: 2001
Model: Cherokee
Engine: 4.0 I6 Powertech
If you change the radiator it's a perfect time to add a ZJ Napa clutch fan I will be upgrading to this in the near future. Napa part number is 272310. Cool Max will not fit.
CF Veteran




Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Regular Champion copper plugs are the ticket for your 93. Get the premium wires, cap and rotor (with brass contacts, not aluminum). And a tube of dielectric grease for inside of both ends of the plug wires.
If you are doing radiator and the water pump is old, I usually replace that at the same time you have everything drained down. And the thermostat as well. 195 degree.
If you are doing radiator and the water pump is old, I usually replace that at the same time you have everything drained down. And the thermostat as well. 195 degree.
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
thanks I'm feeling a lot more comfortable about this now. yeah I was wondering if now was the time to do the 195 or not. I'll pick one up
anything else?
anything else?
CF Veteran




Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Can't think of anything else offhand unless you have symptoms.
You are doing the right thing by performing comprehensive maintenance. With maintenance, it's pay me now, or pay me MORE later. I prefer to pay now.
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
yeah I figured I should spend my money there before anywhere else
at 118,000 miles it runs amazing. idles perfect with no vibration or weird hiccups
but it starts rough from sitting for 2 years. I need to flush it, replace the head gasket, and tune up and hopefully it starts nice and smooth
another symptom is a whirring at low rpms that goes away with acceleration.
sounds like a bearing or some other part of the pulley system. ideas? serp is good tho
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CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
If u replace hoses, radiator, t-stat and water pump, u only have to drain/refill coolant once, otherwise, it'll be multiple drain/refills.
......and as suggested, replace the fan clutch.
......and as suggested, replace the fan clutch.
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
is this the proper ntk 02 sensor?
does napa carry these or can I get a better priced one anywhere?
http://www.autopartswarehouse.com/de...e&apwid972wjPO
does napa carry these or can I get a better priced one anywhere?
http://www.autopartswarehouse.com/de...e&apwid972wjPO
CF Veteran




Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
is this the proper ntk 02 sensor?
does napa carry these or can I get a better priced one anywhere?
http://www.autopartswarehouse.com/de...e&apwid972wjPO
does napa carry these or can I get a better priced one anywhere?
http://www.autopartswarehouse.com/de...e&apwid972wjPO
I'd check to see if Napa has them and what their price is. Otherwise, that one would be fine and you can check RockAuto's online catalog as well.
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
little update
so I actually went and looked under my hood and everythings been tuned up very recently
like stealership quality.. you think the PO wouldve mentioned a recent tuneup?
well that frees up some play money
still need:
radiator (small leak), water pump, B&M trans cooler, zj fan clutch, 195 tstat
possible 02 sensor
want:
spectre cowl induction and neon injectors
was thinking about pulling my own injectors and cleaning them up..
SYMPTOMS:: still have a rough start! suggestions? I hate it
so I actually went and looked under my hood and everythings been tuned up very recently
like stealership quality.. you think the PO wouldve mentioned a recent tuneup?
well that frees up some play money
still need:
radiator (small leak), water pump, B&M trans cooler, zj fan clutch, 195 tstat
possible 02 sensor
want:
spectre cowl induction and neon injectors
was thinking about pulling my own injectors and cleaning them up..
SYMPTOMS:: still have a rough start! suggestions? I hate it
CF Veteran
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by Atmos
little update
so I actually went and looked under my hood and everythings been tuned up very recently
like stealership quality.. you think the PO wouldve mentioned a recent tuneup?
well that frees up some play money
still need:
radiator (small leak), water pump, B&M trans cooler, zj fan clutch, 195 tstat
possible 02 sensor
want:
spectre cowl induction and neon injectors
was thinking about pulling my own injectors and cleaning them up..
SYMPTOMS:: still have a rough start! suggestions? I hate it
so I actually went and looked under my hood and everythings been tuned up very recently
like stealership quality.. you think the PO wouldve mentioned a recent tuneup?
well that frees up some play money
still need:
radiator (small leak), water pump, B&M trans cooler, zj fan clutch, 195 tstat
possible 02 sensor
want:
spectre cowl induction and neon injectors
was thinking about pulling my own injectors and cleaning them up..
SYMPTOMS:: still have a rough start! suggestions? I hate it
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
I couldnt really tell you. It's hard to describe when you dont know a whole lot about engines
tried to take a video and of course it starts up perfect
I'll try again in the morning when it's colder
Jeep Cherokee startup - YouTube=
tried to take a video and of course it starts up perfect
I'll try again in the morning when it's colder
Jeep Cherokee startup - YouTube=
turn ur key on for a few seconds to allow the fuel system to prime before cranking the engine that should help with cold starts
Thread Starter
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
it just cranks hard and catches.. rough haha. then runs smooth
what do you guys think of MSD ignition upgrades?
was looking through brians old thread because I liked his budget engine upgrades
http://www.msdignition.com/Products/...n_Control.aspx


