Hissing or squirting sound when accelerating

I was turning on my Tacoma ORSB and noticed a squirting sound whenever I start to press down on the gas, but only at the beginning of every press down. Anyone had this problem before? Any recommendations please?

 

Your truck has an electric brake booster, right?

 

Heater core maybe?

 

Sounds like your girlfriend is a keeper

 

Sphincter puckering from
ALL THAT POWER

 

Yeah

 

loose sphincter

 

Okay, there goes the easy answer. My first inclination is a vacuum leak; can you localize the sound to any particular area?

 

I haven’t been able to locate it. But where would be some of the common areas

 

I would check the coolant overflow/expansion tank. Mine had a small weep around the hose coming out of the base of the tank. The air in the heater core allows the coolant to make a sloshing/running sound. It was especially pronounced when taking off from a stop.