drmix

i got a 93 4runner v6. i have a coolant leak somewhere since i always find a puddle of it every morning. its not from the radiator but is somewhere on the motor and i cant find where exactly it is but its somewhere on the drivers side i think. it only leaks after its been sitting for a long time. any ideas on what it could be? my oil looks fine and isnt milky at all

fillsrunner4

Check your freeze plugs, coolant lines, heater core lines, and Possibly blown head gasket

TNRabbit

Well, there are three small hoses on top of the engine I can think of offhand; one is an upside-down u-shaped hose on the pax side under/behind the plenum, and the other two pass thru the throttle body. Start with those.

drmix

do you have any pics of the hoses?

TNRabbit

Check these threads:

https://www.yotatech.com/forums/f116/help-part-number-3vze-81731/

https://www.yotatech.com/forums/f116/need-help-broken-nipple-tvv-coolant-manifold-back-3vze-engine-125042/

Team420

check your oil cooler too, it is right in behind the drivers tire.

RaginYota

I had the same little U shaped one leak on me. It wasn't until the truck was shutoff and then sat for a little while. Be ready because it is a PITA to get to. You will need a flashlight to see it is leaking. I hope this helps.

jasonbrink

Water pump leaking? That's what mine was doing too. I took the timing cover off and it was quite obvious where it was leaking from then.

Jason

drmix

i checked the hoses and they were fine the leak seems to be coming around the thermostat but its not the thermostat housing

TNRabbit

Probably the water pump, then.

jasonbrink

That's EXACTLY what mine did. I'm in the process of fixing it now. Water Pump....

Get all the timing belt change stuff, and do it all unless you know it has been done in the last 60k miles.
Timing belt, idler pulleys (upper and "lower" or tensioner if you have one) Cam seal and crank seal

I see you have a '93, so you do have the hydraulic tensioner.
I bought my kit from this guy on ebay, and this is the kit for your truck, with all the previously mentioned items:
http://cgi.ebay.com/ebaymotors/Toyota-3VZE-Timing-Kit-w-Water-Pump-Hyd-Tensioner_W0QQcmdZViewItemQQ_trkparmsZQ7c301Q3a0Q7 c293Q3a1Q7c294
Q3a30QQ_trksidZp4634Q2ec0Q2em14Q2el1262QQhashZitem 334fc4c44bQQitemZ220381627467QQptZMotorsQ5fCarQ5fT ruckQ5fPartsQ5fAccessories

He is a good, honest seller. I am very happy with the price and the parts. All Japanese parts, just like what was on it. The AISIN water pump comes with an updated gasket that is a vast improvement over using RTV (FIPG) or the old style gaskets.

Just bite the bullet and buy it. I researched for days on the best deal, best parts etc etc etc So you have the benefit of all the research without any of the work....Except the job at hand, which there are TONS of postings about, especially lately.

Good luck, and when you tear it down to the point of being able to see the crank gear, start SOAKING that thing with PB Blaster. That step took me another whole day just to get that gear off to change the crank seal. My pump leaked all of its' juice down on that thing (there is a drain underneath the gear) and made the shaft rust enough to make it a bear to get off.

Jason

MacDaddy

drmix..thx for answer. Am I looking for part #9004? Is that just bulb or housing 2? Help me with buying a new housing. Mine are fine. Does that help newer bulbs project light, or can I get away with just #9004 bulbs?
Mucho Gracias
MAC

BIGR79

Mine was leaking from the front driver side timing cover too. I replaced the water pump and still leaked out of the cover, so I have been running it with the timming belt cover off and now found the leak, its leaking from the driver side heads front freeze plug! I tryed tapping it in on one side with a driver and cant get it to budge! andy suggestions on how to get it out?