How to do a tuneup?
Thread Starter
Seasoned Member
Joined: Jul 2010
Posts: 381
Likes: 0
From: Portland, OR
Year: 89
Model: Cherokee
Engine: 4.0 L
Hi guys. Finally got my overheating issue dealt with. So far ive had the battery replaced...twice. new start. New battery cable ends. About 6 gallons of antifreeze. A new thermostat to replace the one that...wasnt there before. >.< And a radiator flush. The temp now stays at around 200 on the gauge. My next step is going to be a general tuneup. What parts do i need? Id prefer to buy them online for the best deals if you guys can give me a list and some links to cheapest resources you have found?
Ive got an nss. got it on e-bay shockingly. Looks like itll do the trick. Gonna have a mechanic do that one though. I couldnt get the old one off. I just have manage to manipulate the old nss into letting me start sometimes. I need to get a muffler as well. I want to replace the whole exhaust system. Its rusty its got holes in it. Its loud and i dont want to get pulled over... Any recommendations and or links on that? Its a 92 cherokee laredo 4.0L with the straight 6. Auto and 2wd. Please stop laughing...!
Ive got an nss. got it on e-bay shockingly. Looks like itll do the trick. Gonna have a mechanic do that one though. I couldnt get the old one off. I just have manage to manipulate the old nss into letting me start sometimes. I need to get a muffler as well. I want to replace the whole exhaust system. Its rusty its got holes in it. Its loud and i dont want to get pulled over... Any recommendations and or links on that? Its a 92 cherokee laredo 4.0L with the straight 6. Auto and 2wd. Please stop laughing...!
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
you will find everything you need at Autozone.
Plugs and wires
cap and rotor
Plugs and wires
cap and rotor
Thread Starter
Seasoned Member
Joined: Jul 2010
Posts: 381
Likes: 0
From: Portland, OR
Year: 89
Model: Cherokee
Engine: 4.0 L
Any specific plugs recommended? Do you have pics or diagrams of where the parts go? Im still new to all of this but im sick of paying hundreds of dollars to jackass mechanics in my pissant town.
Senior Member
Joined: Apr 2010
Posts: 530
Likes: 0
From: Saginaw, Mi
Year: 99
Model: Cherokee
Engine: 4.0
ok then
welcome to the forum
not bein a dick or anything
but the search tab is your friend and go get your self a chilton or haynes manual
i know books are soo old skool but they give you tons of info, hell they teach you how to rebuild everything
good luck
welcome to the forum
not bein a dick or anything
but the search tab is your friend and go get your self a chilton or haynes manual
i know books are soo old skool but they give you tons of info, hell they teach you how to rebuild everything
good luck
Check this site out. I have found a lot of useful info about all my jeeps here. AND IT FREE
http://www.jeep4x4center.com/jeep-se...uals/index.htm

http://www.jeep4x4center.com/jeep-se...uals/index.htm
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
plugs wires cap and rotor are pretty self explanatory, but you can ask the guy at autozone and he will point them all out for you. other then that it should take you no more then an hour to change them all, they are all easy to get to you just need a few tools:
socket wrench
8" extension
spark plug socket
Philips screwdriver
the rest is a cake walk
socket wrench
8" extension
spark plug socket
Philips screwdriver
the rest is a cake walk
Senior Member
Joined: Oct 2008
Posts: 871
Likes: 0
From: Port Orange, FL
Year: 1993, 1994
Model: Cherokee
Engine: 4.0L HO
Cheap Champions or NGKs work great. You don't need Bosch Platniums, or any kind of platniums, so don't let the guy talk you into it. Giving your Jeep a tuneup isn't hard, and it's pretty fun to do if you like using tools.
Don't forget to change the air filter while you are in there!
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Member
Joined: Jan 2010
Posts: 136
Likes: 0
From: Northeast Ohio
Year: 1999
Model: Cherokee
Engine: 4.0 HO
One tip I have for you: While you are repleaceing your plugs and wires only pull and repleace one plug and wire at a time. If you yank all the wires off at once and then try to put new ones on you are going to have a heck of a time figuring out which one goes where.
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
HA HA...i did this the first time i changed plugs. had a hell of a time figuring it out, just in case you do, there is a picture on how the firing order goes is in one of those repair manual at autozone
Senior Member
Joined: Mar 2010
Posts: 500
Likes: 0
From: Logan, UT
Year: 1989
Model: Cherokee
Engine: 4.0L i6
Ahah I know right, the first time I did the plugs/wires, I removed everything and then put eh wires in lenght order and put everything back nice and in order trying to make it so the the wires were not crossing each other... I like order I can;t help...
Well no need to say that it didn;t work out very good for me lol... I havelearned now to love the organized disorder of my engine lol
As for tune up I know people suggest the fuel filter as well
and it probably doesn;t hurt to check your CCV system and other
Good advice, get the haynes or chilton and follow instruction on the first chapter.... will be super easy
Well no need to say that it didn;t work out very good for me lol... I havelearned now to love the organized disorder of my engine lol
As for tune up I know people suggest the fuel filter as well
and it probably doesn;t hurt to check your CCV system and other
Good advice, get the haynes or chilton and follow instruction on the first chapter.... will be super easy
Thread Starter
Seasoned Member
Joined: Jul 2010
Posts: 381
Likes: 0
From: Portland, OR
Year: 89
Model: Cherokee
Engine: 4.0 L
Thanks for all the comments guys. So to recap. Plugs, wires,cap, rotor, air filter. Anything else that would be a quick and easy replacement? There is no autozone here . But i can at the very least order them online from autozone or pick them up from o'reilly's auto parts while im at work.
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
Thanks for all the comments guys. So to recap. Plugs, wires,cap, rotor, air filter. Anything else that would be a quick and easy replacement? There is no autozone here . But i can at the very least order them online from autozone or pick them up from o'reilly's auto parts while im at work.
CF Veteran
Joined: Dec 2008
Posts: 1,533
Likes: 0
From: eaton ohio
Year: 93
Model: Cherokee
Engine: 4.0
Check this site out. I have found a lot of useful info about all my jeeps here. AND IT FREE
http://www.jeep4x4center.com/jeep-se...uals/index.htm

http://www.jeep4x4center.com/jeep-se...uals/index.htm
amazing link!!!
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter


