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Chris, Shop Foreman
Category: Jeep
Satisfied Customers: 3349
Experience:  Jeep Certified Master Tech
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Doing 80mph,ac is on.working fine,engine lite comes on.

Customer Question

Doing 80mph,ac is on.working fine,engine lite comes on. ,2006 gc 5.7 hemi. No other sounds or rattling, or any other vibrations. Turned off AC. Lite kept blinking then went off 30 secs later came on again. Checked all fluids were on.
Submitted: 12 months ago.
Category: Jeep
Expert:  Chris replied 12 months ago.

Hello and welcome to just answer. If you had a blinking check engine light, then the PCM (engine computer) thinks that the engine was misfiring. When was the last time the spark plugs were replaced?