Dropping power

[jerry ds]

My 04 Ram is losing power after traveling the interstate at speeds between 80-85. It boggs down and shutters (vibrates really bad) until I pull off the interstate and turn the engine off. I have changed plugs, wires and several coils. It throws code 2305, 2308 and today code 300 (a new one). I have also cleaned the throttle body. Any suggestions on what to do before taking it to the dealer?

 

[HemiLonestar]

0300 - multiple cylinder misfire
2305 - ignition coil B secondary circuit
2308 - ignition coil C secondary circuit

If I recall correctly, cylinder B is 2, C is 3. If you have brand new and known good coils and plugs on those cylinders, it may be injector or valve related. At this point (depending on your diagnostic/mech skills) it may be time to take it in.

 

[jerry ds]

Thank you for your reply, I’m leaning towards taking it in myself. I know the coils are good and I changed the plugs and wires last week. Next stop is the dealer. I’ll repost when it’s figured out. Thanks again.

 

[SYKRAMMAN]

My 04 Ram is losing power after traveling the interstate at speeds between 80-85. It boggs down and shutters (vibrates really bad) until I pull off the interstate and turn the engine off. I have changed plugs, wires and several coils. It throws code 2305, 2308 and today code 300 (a new one). I have also cleaned the throttle body. Any suggestions on what to do before taking it to the dealer?

I'd find a reliable and well known indy shop before letting a steelership even glance at my truck, but that's jmho.

 

[jerry ds]

Well tonight while driving down the road the engine shut off and would not restart. The ETC came on this time. It is also giving code P2314. Any suggestions before I have it towed to the dealer?

 

[HemiLonestar]

2314 is secondary coil circuit for cylinder E (5)

 

[jerry ds]

Thanks for all the replies and ideas. I had it towed to Steve Jones Dodge and Aikman Pollard (Mechanic) was able to diagnose the problem. The PCM was back feeding voltage to the coils which blew the bottoms out of 4 of them. After replacing the PCM and all 8 coils my HEMI runs like new. A big shout to the Steve Jones Dodge and Aikman Pollard for getting the HEMI running like new and especially with it costing under $800.00.