I have a 01 dodge ram 2500 v8. for as long as I have had the truck I have noticed this noise. I only hear it on acceleration and only when I just slowly pull away from the stop light ( keeping it under like 1500) I have never had a problem with the noise, no check engine light or anything but I also can't seem to find what would be making the noise. it sounds like water running. kind of like if someone upstairs flushed the toilet and you hear the water run down the drain in the wall from the main floor. It doesn't bother me but I'm just curious. anyone else ever have that problem?

 

yup, hear the same thing. no idea here

 

It's air in the heater core. Normal.
do a search on here and you will learn how to fix it.

 

use the search link theres a whole thread about it i think it like air pockets running through the heater core it tells you how to fix it on this one thread sry cant think of the name of it but maybe that helps a little

 

*echooooooooooo* lol

 

damn you laramie you bet me once again

 

air in the heater core eh, interesting. i would have never thought of that. do you think it could hurt the system if left unfixed? was there ever a recall?

 

it doesn't directly hurt anything, but it indicates you have problem with air in the system, either from a leak, or last time you opened up the system. in the winter it will interfere with the heat. check your overflow tank to be sure its at normal level. when cold, make sure radiator is full.

 

lol havent fixed mine yet eather its really an easy fix

 

well thanks alot guys I'll have to take a look at it this weekend