rebelrunner

i've got a 96 4runner 3.4 automatic 4x4. it leaks alot of water. as in i need to fill it up every day becuase the light comes on and it runs hotter than usual. ive looked everywhere for the leak and cant find any water except for the ac drip which i can see dripping from a nozzle on the fire wall. any suggestions are appreaciated.

xxxtreme22r

heater core?

brian2sun

Pressure test the cooling system. Running it hot like that will ruin the motor quickly or at least significantly impact it's lifespan. It could be going into the combustion chamber. Any running issues, lack of power, white smoke out the tail pipe, rough idle, etc..? The more details, the better we can help. Have you had the codes read yet?

rebelrunner

thats what im thinking but the heater blows hot and i cant see any leaks with the heater on while the truck is running and warmed up.

rebelrunner

its not running really hot just a little hotter than usual.the truck runs exactly like it did before with absolutly no diffrence. no smoke and i had the HG replaced with stanless steel ones a year ago so i know thats not it. no the codes have not been pulled but the light has always been on because i unhooked somethin that made it idle really high after i had the HGs replaced.

brian2sun

Look around the oil cooler, water pump, and thermostat with an extendable mirror and a flashlight. You should see coolant trails or residue if it's leaking from any of those.

raydouble

Do you have rear heat?

Get it hot in your driveway and follow the water.

kball

Is the carpet inside your truck wet anywhere?