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Old 01-04-2013, 05:35 AM   #1
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new ignition module affect timing?

85 CJ7 4.2 258- I recently replaced the ignition module and now my jeep is bogging down while I am driving(runs perfect in the garage). With a new ignition module would I have to time the jeep again?

Recently replaced coil, distributor cap, plug wires(wires is in the right position), ignition module

It started running funny after the module

Any ideas?
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Old 01-04-2013, 12:49 PM   #2
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Runs well in the garage (idle, revving), but not under load/driving?

Of course, check timing to confirm, but module shouldn't have changed the timing.

It sounds like a fuel-related issue. Suggestions to check include weak fuel pump, clogged fuel filter (tank sock, inline, or in carb base), proper float level and float integrity.

HTH, good luck!
'05 LJ
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