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rpmdiag, Tech and Instructor
Category: Dodge
Satisfied Customers: 6702
Experience:  Since 1975
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I have a 2012 ram 1500 recently changed all coils and spark

Customer Question

I have a 2012 ram 1500 recently changed all coils and spark plugs. After doing so under hard acceleration only I get I a cylinder 3 misfire. Checked coil with ohm meter checked spark plugs even swapped to a different cylinder. Still cylinder 3 misfire only under hard acceleration. Hooked up scan tool watched all cylinders and under heavy acceleration it drops cylinder 3 injector. I changed cylinder 3 injector with cylinder 2 along with coil and plugs but still continues to drop number 3. At this point I'm completely lost can you help?
Submitted: 1 month ago.
Category: Dodge
Customer: replied 1 month ago.
It's a 5.7l hemi with mds sorry left that out.
Customer: replied 1 month ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  rpmdiag replied 1 month ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 1 month ago.

If you're sure that it's the injector falling out on you, that may be a problem with the computer when it sees a certain load and RPM. It is odd, but there also may be a flash update that will cure that too.

Any dealer service department can tell you that over the phone too.

Thanks, Ron

Expert:  rpmdiag replied 1 month ago.

Hi, I'm just following up with you to see if you have any more questions.
Thanks, Ron