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Discussion Starter · #1 ·
I have had problems with my Jeep hesitating and stuttering when cold mostly. When you hit the gas slightly, it will stutter, or stay at the same RPM. The engine light had not come on before, and I had the same symptoms a couple of times last year. ( I dont get to drive all my trucks to often).

Well the last time I started it up, the engine light stayed on. I pulled the codes and it said O2 sesor running rich and O2 high voltages. I do have a scanner for this truck, if it will help in the diagnosis!

Chuck B.
 
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