I have a 2003 Silverado w/ 26k miles. I have alway's heard a gurgling sound in the dash. It sounds like it is in the passengers side, but I hear it quite often, and alway's have. The dealership told me right after I got this truck, that it was normal. Is this correct? Does anyone have any idea what the problem could be, and if there isa fix?

 

Sounds like you have air trapped in the cooling system.

 

I have an 2000 and it does the same thing. It has done it since it was new. I hear it maybe once a month if that.

 

this worked for me, got rid of gurgle.

i got a PRESTONE garden hose flush kit (has adapters+hose clamps). installed it at highest point (with upward pull) on hose that goes from upper engine to heater core.

filled it there and got a burp. later ran engine (FROM COLD) with cap off, after a cough of fluid, level slowly rose as if i were filling at old style radiator cap with funnel. (unsure if part 2 was necessary)

started, no gurgle, drove, no gurgle. change climate, no gurgle. only with a good rev did i hear a slight noise (it was as bad as any gurgle before). and all said and done took only minutes.

i think it's just a sunday repair issue, just noise. i think due to silverado 1500 design (hoses high) and block design that no air is trapped in engine (no overheat air pocket syndrom).

i've heard so many with same problem i assume (and hope) it's not head gasket (i believe i have no milky oil, sure no oil in coolant, can't see in (if bubble in coolant) (2/3 ?), already did intake gasket, there's no water on floor this worked for me, got rid of gurgle.

i got a PRESTONE garden hose flush kit. installed it at highest point (with upward pull) on hose that goes from upper engine to heater core.

filled it there and got a burp. later ran engine (FROM COLD) with cap off, after a cough of fluid, level slowly rose as if i were filling at old style radiator cap with funnel. (unsure if part 2 was necessary)

started, no gurgle, drove, no gurgle. change climate, no gurgle. only with a good rev did i hear a slight noise (it was as bad as any gurgle before)

i think it's just a sunday repair issue, just noise. i think due to silverado 1500 design (hoses high) and block design that no air is trapped in engine (no overheat air pocket syndrom).

i've heard so many with same problem i assume (and hope) it's not head gasket (i believe i have no milky oil (had some after intake repair but had spilled some coolant in - none on dipstick now i'm sure), sure no oil in coolant, can't see in (if bubble in coolant) (2/3 ?), already did intake gasket, there's no water on floor, unsure if air is getting in rad system from heater or hoses: that i'll know after i get the gurgle out if it comes back!)


hope that helps