Gurgling/gargling bubbling sound
#1
Gurgling/gargling bubbling sound
Truck makes a gargling/bubbling sound at startup- usually only when it sits for some time like over night. Makes it for about 1-3 minutes then it's gone. It doesn't happen each time started after that like if running errands or something. It is really only audible from cab- under hood sounds normal and the truck is running fine. This started about a week ago a day or two after a 21 hr trip. I have read heater core (fluid is full and is clean) and trans filter may make noise- I have less than 2k on my new trans. Any thoughts?
#3