pissing coolant

potatoe · 07-22-2009, 06:52 PM

so im not sure if its the thermostat thats bunk or if you guys might have a better idea; but the temp guage shows normal, but the motor gets really hot and the coolant tank fills up and pisses everwhere after about a mile of driving.
any suggestions?

Jackstand Queen · 07-22-2009, 07:55 PM

Malfunctioning thermostat inside the housing on top of the tranny. Never go aftermarket with thermostats. Yota oem is the only way to go.

Check to see if the previous owner removed the oil cooler. Its a 3" black tube about 18" long that is on the firewall mounted almost in front of the exhaust manifold.

Look for oil in your antifreeze, and vice versa.

Smell the exhaust . . . sweet smelling?

check oil level . . .

check for paper, animal nests blocking the radiator.

dirocyn · 07-24-2009, 12:40 PM

Burp your system, too. Air in the cooling system can stop your circulation, so the hot never gets to the temp sensor.

potatoe · 07-30-2009, 07:24 PM

ok. there was no oil in the coolant or coolant in the oil so im trying to pull the thermostat and the housings giving me alot of trouble. i thought i got all the bolts but mabey not. is there a bolt under the housing next to the alternator that needs removing? the books not being very helpfull on this one

mr3 · 07-30-2009, 07:31 PM

The thermostat is over the transmission. Not over the alternator.

potatoe · 07-30-2009, 07:55 PM

ok. so there was a bolt and i removed it but now the housing is still corroded to the pipe that runs to the block and i cant get the two appart. even with wd 40. suggestion?

potatoe · 07-30-2009, 08:39 PM

ok. how do i get to it then

muffinman · 07-31-2009, 11:41 AM

Quote:

Originally Posted by mr3

The thermostat is over the transmission. Not over the alternator.

+1

can you post some pics of what your trying to get off?

mr3 · 07-31-2009, 01:22 PM

I cant take a pic of the right part right now. I'll probably be able to look at it tomorrow or Sunday if you dont find it out by then.

potatoe · 07-31-2009, 05:58 PM

i got it right this time. i dont have a camera or i woulda taken pics for whoever might want/need em, but i can tell you how to get to it and ****. you just remove the battery and for me the k&n airbox extention hose thing. the thermostat housings the part with the engine air bleeder valve. take the hose off that runs from that towards the firewall and hooks under the battery tray. remove the 2 10mm bolts that hold the thermostat housing to the other side of the housing, pop the thermostat out.

YellowJacket · 08-06-2009, 01:29 PM

Thats great but did it solve your problem?

potatoe · 08-11-2009, 04:37 AM

still not sure. i went to fill and bleed the coolant yesterday and my water filler pipe broke and toyota wants 100 bucks for a new one so i gotta scavenge one.

toyotaspeed90 · 08-17-2009, 04:11 PM

typically what happens is that there will be an air pocket in your coolant system.... it is those pockets that get hot and expand (coolant/water will expand, but not as much as air). So, when a hot spot comes through the extra pressure is released through the cap into the overflow tank....

further... make sure your overflow tank cap isn't on backwards (internally).

I use non-toyota thermostats all the time.... Toyota doesn't make them, they just buy them from a supplier.....

when you bleed your system, make sure you do it for a LONG time and/or use the proper techniques described online if you don't have an airlift tool.... air pockets hide quite well in these cars.....

07-22-2009, 06:52 PM	#1 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	pissing coolant so im not sure if its the thermostat thats bunk or if you guys might have a better idea; but the temp guage shows normal, but the motor gets really hot and the coolant tank fills up and pisses everwhere after about a mile of driving. any suggestions?

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07-22-2009, 07:55 PM	#2 (permalink)
Jackstand Queen Cage Fighter Join Date: May 2008 Posts: 677 Thanks: 52 Thanked 56 Times in 53 Posts iTrader Rating: (1/100% )	Malfunctioning thermostat inside the housing on top of the tranny. Never go aftermarket with thermostats. Yota oem is the only way to go. Check to see if the previous owner removed the oil cooler. Its a 3" black tube about 18" long that is on the firewall mounted almost in front of the exhaust manifold. Look for oil in your antifreeze, and vice versa. Smell the exhaust . . . sweet smelling? check oil level . . . check for paper, animal nests blocking the radiator.

07-24-2009, 12:40 PM	#3 (permalink)
dirocyn Cage Fighter Join Date: Mar 2009 Posts: 133 Thanks: 6 Thanked 12 Times in 12 Posts iTrader Rating: (0/0% )	Burp your system, too. Air in the cooling system can stop your circulation, so the hot never gets to the temp sensor.

07-30-2009, 07:24 PM	#4 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	ok. there was no oil in the coolant or coolant in the oil so im trying to pull the thermostat and the housings giving me alot of trouble. i thought i got all the bolts but mabey not. is there a bolt under the housing next to the alternator that needs removing? the books not being very helpfull on this one

07-30-2009, 07:31 PM	#5 (permalink)
mr3 Cage Fighter Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 840 Thanks: 19 Thanked 26 Times in 25 Posts iTrader Rating: (2/100% )	The thermostat is over the transmission. Not over the alternator.

07-30-2009, 07:55 PM	#6 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	ok. so there was a bolt and i removed it but now the housing is still corroded to the pipe that runs to the block and i cant get the two appart. even with wd 40. suggestion?

07-30-2009, 08:39 PM	#7 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	ok. how do i get to it then

07-31-2009, 01:22 PM	#9 (permalink)
mr3 Cage Fighter Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 840 Thanks: 19 Thanked 26 Times in 25 Posts iTrader Rating: (2/100% )	I cant take a pic of the right part right now. I'll probably be able to look at it tomorrow or Sunday if you dont find it out by then.

07-31-2009, 05:58 PM	#10 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	i got it right this time. i dont have a camera or i woulda taken pics for whoever might want/need em, but i can tell you how to get to it and ****. you just remove the battery and for me the k&n airbox extention hose thing. the thermostat housings the part with the engine air bleeder valve. take the hose off that runs from that towards the firewall and hooks under the battery tray. remove the 2 10mm bolts that hold the thermostat housing to the other side of the housing, pop the thermostat out.

08-06-2009, 01:29 PM	#11 (permalink)
YellowJacket 1985 N/A 6-Speed Join Date: Sep 2008 Location: Nashville, TN Posts: 262 Thanks: 8 Thanked 17 Times in 13 Posts iTrader Rating: (1/100% )	Thats great but did it solve your problem?

08-11-2009, 04:37 AM	#12 (permalink)
potatoe No Skills Join Date: Jun 2009 Location: san marcos, ca Posts: 46 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	still not sure. i went to fill and bleed the coolant yesterday and my water filler pipe broke and toyota wants 100 bucks for a new one so i gotta scavenge one.

08-17-2009, 04:11 PM	#13 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 422 Thanks: 0 Thanked 32 Times in 32 Posts My Google Map iTrader Rating: (0/0% )	typically what happens is that there will be an air pocket in your coolant system.... it is those pockets that get hot and expand (coolant/water will expand, but not as much as air). So, when a hot spot comes through the extra pressure is released through the cap into the overflow tank.... further... make sure your overflow tank cap isn't on backwards (internally). I use non-toyota thermostats all the time.... Toyota doesn't make them, they just buy them from a supplier..... when you bleed your system, make sure you do it for a LONG time and/or use the proper techniques described online if you don't have an airlift tool.... air pockets hide quite well in these cars.....