Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David, thanks for visiting the site. first off what engine are we dealing with and is the check engine light on? and if so what are thee codes?
Backfiring thru the intake means a spark plug is firing at the wrong time. Either the ignition cables are not routed correctly or maybe the cables are connected to the wrong spark plug. On a 5.9, it is easy to mix up 6-8 or 5-7. I would verify the ignition cables are installed correctly.
checking in to see how its going
do you have a scan tool that reads live data?
ok, you're going to have to hook up the scanner and drive the vehice til it starts acting up and then record the event or freeze frame the event so we can see what all the parameters are at when the problem occurs
im going to opt and out see if another tech has any thoughts on this. intermittent issues are difficult to diagnose over the internet for sure. good luck
Hello and welcome!
Different Expert here.
Have you checked fuel pressure? You might just have a faulty fuel pump causing this problem intermittantly when warm.
The problem is when the engine is warm under a load right? So you will need to check it WHEN this condition occurs under a load when accelerating. I have the fuel pressure is low, possibly due to a weak fuel pump.
YES, I do.. one minute while I post that information
First, you most likley can do this (check fuel pressure) and get it to act up doing a brake stand under a load. This way you dont have to drive the vehicle. You can have someone inside the vehicle doing a brake stand while you are standing next to the vehicle watching the fuel pressure gauge readings while it is hooked up to the fuel rail with the hood open.
Second, you can purchase an electronic or digital fuel pressure gauge and hook it up to the fuel rail and has a long "wire" that goes into the vehicle on your hand held digitial display so you can take a fuel pressure reading while driving down the road.
You got it! I suspect we nailed it. Replace the fuel pump and you will be good to go!
I am glad I can help!
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YES, thats correct. The fuel pump regulator is in the fuel pump assembly.
Hello! It'sCustomerfrom just answer.
I am just checking in to see if you need any further assistance?
Let me know!