JEEP_cannible
NAXJA Forum User
- Location
- oklahoma
I was woundering if anyone has added a hotter coil,and where did you get it?My jeep is an 87 wagoneer,with the 4.0.I've been having some fire problems in the colder weather.
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Ignition Questions
- Thread starter JEEP_cannible
- Start date
So called hotter coils (by themself) seldom help any problem.
I wood.
Check battery clean post clamps etc. Check ALT output too. . Make sure it's all up to the job.
Is it spinng up to speed? A bad starter will spin slowly and place heavy load on the battery. Sometimes reducing voltage to the firer makers.
The 87 has a dis right.
IF this is the OEM engine it's getting old. Look for shaft play in the dis. dis gear slop, timing chain slop. do a good tune up. HOLD a lose spark wire about an inches way from your belt buckle as you lean on car. Crank engine. ((((SORRY)))) ! Hold about an inches from a good ground. Crank engine. If you get a good consistant spark. Coil is most likely good to go.
She also has a carb right. Is the butterfly closing proplerly. Any vac leaks.
Run compression test you may just have a tired old engine that don't like the cold any more. Like me.
Luck
I wood.
Check battery clean post clamps etc. Check ALT output too. . Make sure it's all up to the job.
Is it spinng up to speed? A bad starter will spin slowly and place heavy load on the battery. Sometimes reducing voltage to the firer makers.
The 87 has a dis right.
IF this is the OEM engine it's getting old. Look for shaft play in the dis. dis gear slop, timing chain slop. do a good tune up. HOLD a lose spark wire about an inches way from your belt buckle as you lean on car. Crank engine. ((((SORRY)))) ! Hold about an inches from a good ground. Crank engine. If you get a good consistant spark. Coil is most likely good to go.
She also has a carb right. Is the butterfly closing proplerly. Any vac leaks.
Run compression test you may just have a tired old engine that don't like the cold any more. Like me.
Luck
Last edited:
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
There is no coil upgrade for the Renix XJs due to the ICM/coil piggyback arrangement.
You can patch in something like an MSD 6--MSD actually makes a patch cable for the Renix--but I don't see a need for it.
Work over the electrical system first--battery, main cables, grounds. Get all of that in top-notch condition and then if there is still an issue we can test our way to the solution.
Good luck.
You can patch in something like an MSD 6--MSD actually makes a patch cable for the Renix--but I don't see a need for it.
Work over the electrical system first--battery, main cables, grounds. Get all of that in top-notch condition and then if there is still an issue we can test our way to the solution.
Good luck.
drakenxj
NAXJA Forum User
- Location
- upstate n.y.
check picup module in dist
- Location
- Bakersfield, CA
The stock coil is already pretty powerful, modern EFI systems (including Renix) come with very good coils already, an upgrade is virtually useless.
JEEP_cannible
NAXJA Forum User
- Location
- oklahoma
Thanks guys for all the help.I was woundering why no one was making a performance coil for these things.With all the people driving XJ's,and with Jeepspeed.I thought for sure it would be avalible.When I saw no listings for it.I knew something was up just not what.
Thanks again
Thanks again
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
91-99 you could wire in any performance coil you like--MSD Blaster, Accel, whatever, however as Goatman put it so eloquently there really is no need unless you had a high compression engine at high RPMs and trying to obtain max ignition. High compression and high RPMs do not go with 4.0s.
