4runner4life93

93 4runner v6 when I turn the heat on and hit the gas there is a gurlging sound that gets louder as more gas i put to it. I can switch it so my ac it does not make the sound anymore. Please help.I cant really explain the sound =(
Sorry.

4runner4life93

keep in mind im only 15 i dont know that much about cars.
So you might have to explain it a little bit.

sb5walker

The end of the first post may help-
https://www.yotatech.com/forums/f116...nt-faq-192781/

Just elevate the front of the vehicle so the top of the radiator is above all heater hoses, slide heater control all the way to hot, make sure rad is cool then pull the cap off the rad and run the motor. Once the engine reaches operating temp, hold rpms around 2000-2500 for a while to get the coolant circulating well. Refill radiator with antifreeze or a 50/50 antifreeze/distilled water mix as the air works its way out. (Make sure you use the same type antifreeze as what's in there.) Then recap the rad and you should be good.

4runner4life93

Thanks alot.Its 15 degres here so i will try that when warms up.Keep ideas coming

shaeff

It's air in the system, plain and simple. If doing what sb5 doesn't work, look for pinholes in any cooling hoses. Even a pin hole will cause those symptoms. After that, it gets into a different ball park, but I won't mention that yet.

4runner4life93

thanks wold air in system cause the antifreze to come out in puddles sometimes its happend 2 or 3 times

4runner4life93

**would air

4runner4life93

if air in system wouldnt this gurgle when ac is on too

sb5walker

Where did the A/F come out? Did the vehicle overheat at the time? Possible blown head gasket. Compression test would give you more info.

shaeff

No, that's caused by leaks, or a BHG.
No, because when the the HVAC knob is pushed to the left (cool air), it closes the heater valve so little to no coolant circulates through the heater core. That's where you're hearing the air/gurgling from- the 'core.
That's what I didn't want to mention before, the possibility of a BHG.

4runner4life93

My truck has had a blown head gasket.

sb5walker

Sucks.