When i start my truck, if it doesnt stall out the first try like usual, i hear a sound like bubbling or pouring liquid. i can hear it real clear, sounds like its coming from the passenger side close to the windshield. i can also hear it a little if i rev it a tad and let off.

any ideas?

 

My '00 1500 does the same thing. I've narrowed it down to 2 things. Either:

1) Tranny Fluid. I only drive my truck once every few weeks usually. When not running for a while, the fluid drains from the torque converter into the pan. The noise might be the fluid pumping back thru everything.

or, more likely:

2) Coolant. I have a small coolant leak somewhere. When I start it up I hear it filling up the higher spots in the cooling system. I HOPE thats what it is. A co-worker has an '01 2500 and his started doing that. Within a week, his heater core went. Mine's been doing it for a while, so I think it's due to my little leak.

 

Mine was doing it and I ckecked the coolent and I filled it up and it was done never herd it again
It sure is a funny noise !!!

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