Replace ignition coil with tuneup or not?
01-12-2013, 11:37 PM
#1
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Year: 1996
Model: Cherokee(XJ)
Engine: 4.0
Replace ignition coil with tuneup or not?
Say if I were about to do a tuneup on my 1996 XJ, with wires, plugs, cap, and rotor, should I replace a functioning (no issues) ignition coil as well? It looks like two bolts and an electrical connector (easy) to replacing this part. Around $50 for an OEM replacement of good quality.
What are your thoughts? Any advantage to putting in a new ignition coil at tuneup time when the old one is still working fine?
What are your thoughts? Any advantage to putting in a new ignition coil at tuneup time when the old one is still working fine?
01-13-2013, 12:48 AM
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
No, I wouldn't. Pretty rare they fail. I DO carry both a drive-line and a front axle U-joint. Shoot. Can't you buy one of those jumper packs for $50? I'd get something I want when the stores are closed or too far...first
Or a nice chain. Fire extinguisher. Flairs....
How many miles on your 02 sensor? Your final fuel mix depends on that thing working right.
Or a nice chain. Fire extinguisher. Flairs....
How many miles on your 02 sensor? Your final fuel mix depends on that thing working right.
Last edited by DFlintstone; 01-13-2013 at 12:54 AM.
01-13-2013, 02:16 AM
#6
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Model: Cherokee
Unless you are buying it from a Chrysler/Jeep dealer, you aren't getting OEM. You are getting OEM-spec aftermarket. None of the aftermarket coils are as good as the factory unit, in fact many are considerably worse. I'd leave it alone unless it's causing trouble.
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01-13-2013, 05:39 PM
#11
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Year: 1996
Model: Cherokee(XJ)
Engine: 4.0
Replace both upstream and downstream oxygen sensors? Or, just the upstream? Again, no issues, just trying to do some preventative maintenance and gain some MPGs in the process.
01-13-2013, 06:16 PM
#12
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Year: 1990 Laredo
Model: Cherokee
Engine: 4.0 Inline 6 Renix
Yes Do the upstream and down stream o2 sensors for the max mpg gain... i think the company name for the o2 sensors is ntk? Correct me if I am wrong please 
btw how many miles on your Jeep?
looks like a nice country model from the picture
btw how many miles on your Jeep?
looks like a nice country model from the picture
01-13-2013, 07:45 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
I replaced my coil at 129,247 miles. It fixed a stumbling during heavy acceleration problem I had.
Edit: I guess my coil didn't last the lifetime of my Heep. LOL
Edit: I guess my coil didn't last the lifetime of my Heep. LOL
Last edited by CCKen; 01-13-2013 at 07:56 PM.
