thelaststarfighter13

I need to do a tune-up, Previous Owner can't remember the last tune-up and the vehicle has 193,00 miles on it.

should I do the cap, rotor and coil too? Are there any tried and true upgrades for these that are worth the money (I don't have a competition rig here, but I like power)????

I have 6 Bosch platinum +4 from another project just laying around, should I forego them even though the are free for some Champions????

thelaststarfighter13

somebody help me out here

TrekkerJmm

Hi, it seems just about everyone on this forum runs the Champion plugs so I would have to say to go with the majority....Tj

ol"blue

I run Champions in all my vehicles, and always have. I don't buy into the "flavor of the month club" that tries all the new high-dollar, latest-thing-out type of plug on the market. Even on my turbos. I'll change the heat range to suit the set-up of the engine, but I stick with Champions.

ltlgreenXJ

i just did a tune-up with all NAPA parts and champion plugs. truck feels a lot better after. parts all told was about $120 (plugs, wires, cap, rotor, and an oil change)

jaqattack02

I haven't done the tuneup yet, but we picked up a Mopar kit from a local Dodge dealer that includes wires, cap, and rotor all together for like $50. Just have to get plugs separately.

93gc40

Do the cap and rotor.. If the plugs you have are the correct size and heat range use them, since they are free. there are those that swear by them. Next time around don't bother waisting, your own, money on fancy plugs, champions work just as well.

MadMikeX3

I would never run Champions in anything but my Lawn Mower. I only Run NGK in all my Cars.

BuckB91XJ

Get the high end cap and rotor sold at any Auto parts store. If they sell more than one, all of them are usually junky aluminum contacts except for the high end one. Have your coil and ignition module tested at the auto parts store. If they're good don't spend the money on a new one just to do it. A coil is either good or bad. Find the highest cliff or deepest lake you can and throw those @#$%& Bosch Platinum tips as far as you can and then when you go to the parts store, get a set of OEM Champions for your Jeep.

thelaststarfighter13

How do I tell what heat range the plugs are in?

They were for a 351 windsor

thelaststarfighter13

How do I test the ignition module???

Metmknice

Get the accel super tune kit from quadratec.. comes with cap, rotor 8.8mm plug wires and plugs. You do not necessarily have to use the plugs, but they work good. and the kit is cheaper than the wires by themselves.

ol"blue

If those plugs are for a 351 windsor, do a cross reference on them to see if they'll work in your engine. They might extend too far into the combustion chamber and hit the pistons. Or they might not extend far enough. Don't use them unless you make sure they're safe to run in your engine. Don't run them just because they're free.

BuckB91XJ

Your coil and ignition module can be removed as a set. Take them into your friendly neighborhood Autozone and they will test them both for you for free on their test bench.