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Customer installed spark plugs
Came in with rough Idle. Before any work was done I scoped the secondary coil wire. this is what I found [1998 Jeep Cherokee Classic, Not Applicable Waveform] Firing 16KV,Spark line 2.75KV at 1.56ms. Seems like most of the voltage was used up to fire the plug,... Login to read more.
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| Engine | 4.0 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1998 Jeep Cherokee Classic 4.0L
| Engine | 4.0 L |
| Trans | 4-speed Automatic (Electronic) |
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