Why is my diesel surging?
If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.
How do I know if my 6.7 Cummins has a bad injector?
A few signs that your injector is going bad include:
- Poor engine performance or misfires.
- A check engine light comes on.
- Hard starting or poor idle – especially after the vehicle has been sitting overnight.
- Black smoke from tailpipes.
- Foul odor from tailpipes.
- You notice a decrease in fuel efficiency.
What is engine hunting and surging?
Engine hunting and surging at idle is usually caused by a fuel delivery, air leak, or governor system problem. Cleaning/overhauling the carburettor, adjustment of the governor, and/or changing the air filer may be required.
Is there a recall on Dodge Ram 6.7?
If you live in California and own one of the trucks affected by this recall, you’ll need to provide proof of repair before you can renew the truck’s annual registration. Owners with questions or concerns can contact Chrysler at 800-853-1403. You have an 06 pictured there. 06s did not come with the 6.7.
What causes an engine surge during fuel injection?
In combination with the camshaft position sensor (CMP), the CKP signals are used by the ECU to manage fuel injection and spark delivery. A faulty CKP (or CKP circuit) can easily cause an intermittent misfire, which naturally results in what the driver may perceive as a surging effect.
When did Dodge Ram 3500 Heavy duty truck come out?
It was in 2007 that Dodge started to use the smaller/more compact Ram 3500 Heavy Duty badge. 2006 still had the “Ram 3500” in the large, silver, letters on the driver and passgenger doors. @Eblue: you are right about the tail lights however. Dodge probably just photoshopped the new badge on the 2006 truck.
What causes an engine surge when the ECU is off?
If closed TPS voltage changes, the ECU may assume that your foot is on the throttle, causing a richer fuel mixture to be delivered. This can also be caused by a faulty TPS, or even a poor ground. With the engine off, check TPS voltage with the accelerator pedal relaxed. Then work the pedal a few times and see if the voltage changes.