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Ask Jerry Your Own Question
Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 1754
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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It started running like it's cutting out. code p0300 came

Customer Question

it started running like it's cutting out. code p0300 came up. changed air filter, plugs. My son had just cut the exhaust off, so i bought a clamp. still not running right. will start out ok but after it runs for away it's start cutting out. Going to try changing the o2 sensor today. Any other suggestions
JA: Have you located all of the vehicle's oxygen sensors? Are the wires leading to and from each intact and in good shape?
Customer: not sure
JA: What is the model/year of your Dodge?
Customer: 2003 dodge 2500 2x4 5.7 hemi
JA: Are you fixing your B2500 yourself? What have you tried so far?
Customer: yes, I have a friend that has a machine that checks for codes. But it doesn't specify whats wrong with it. Just says multi misfires. Was thinking about check the coils
JA: Anything else you want the mechanic to know before I connect you?
Customer: Does it really matter if i should use high octane for fuel
Submitted: 8 months ago.
Category: Dodge
Expert:  Chad replied 8 months ago.

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