brose38

Hey guys. I went to look at a 1988 V6 4runner. It has 150000 miles and was in pretty good shape. When I was driving it I noticed a gurgle that sounded like it was right behind the dash. It only happened when I stepped on the gas. Has anybody had this happen to them or heard of it.

mastacox

Sounds like an air bubble in the coolant lines going to the heater core.

mr toytech

i agree

91_4x4runner

Yep, x3

DudeBud

yep my 88 does it too, but it also has a leaky HG, not saying yours does though.

the_supernerd

My truck does that every time I flush the coolant before it is completely full. Check to make sure it has not run dangerously low on coolant and make sure the heater works. A bad heater core can cause it to make that noise more.

Bigblock

I've heard that on lots of Yotys that were full and have been full of antifreeze.What do you do about it?

drew303

my 87 2wd does it. New radiator, coolants full etc... full heat.. It's more of a parts runner truck so i havent cared much to fix it, lol.

does it on startup when the the coolant moves into the heater core, after that, its gone.

Marc

Mine has always made that noise on occasion.

curly_c

my dads 86 does it. doesnt seem to make a difference with anything. i think its fine.

gohawks

mine did it after a drain and fill. Went away when I got all the air out.

006roadster

I just bought mine and it does it too. Is the heater core higher then the engine? My concern is that coolant might not be getting to the top of the engine? How do you get rid of the air?