Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I am Mike, welcome. I'm reviewing your question.
Does the sound happen in park or neutral, just reving the engine up to 1900 rpm?
I don't know yet. If yo are not going to answer my questions, this is going to go nowhere cause I have more to ask, second is, is the noise coming from the engine?
Are you near the vehicle right now?
Ok, let's go by memory just for now.
Does it sound as though it's coming from the engine?
have you ever reved it up higher than 2000 rpm and if so is the noise still there and if so is it louder?
I am waiting for an answer?
By the way, it is my opinion that position slap would make a noise standing there under the hood reving the engine up by hand in park/neutral.
Humming? Does the fuel pump ever make that humming noise when you first turn the key to run before you turn the key to start?
Ok, never mind, it's not the fuel pump.
Do you have an auto or manual transmission?
And what model is this, what engine and is it 4wd or rwd?
My 1985 has an electric fuel pump.
Ok neither of those is the model, and I suppose the 4x means 4wd, what about the transmission?
I don't know if it's even possible to hear a piston slap on a diesel. I am not a diesel mechanic either.
One last question then I will opt out in case you want to talk with a diesel expert. If you feel safe doing so, please practice a few times but on a long stretch of open highway with no one else around, get it up to speed to when the noise occurs, then shift into neutral and listen if the noise is still there or not, if it is, shut the engine off just briefly, then start it back up and listen if the noise went away that little time the engine was shut off.
No, get it up to speed to where it makes the noise, then let up on the accelerator, then shift into neutral, then shut the engine off, just for a few seconds.