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celica overheated. - 6G Celicas Forums

Topic #68078 43 posts Started by Badkarma
Badkarma
#1
my gf's celica overheated today and by the time she realized the temp guage topped out, she was home and the car was steaming. when i got home from work i checked the coolant, it was low so i filled it and it isn't leaking. (not enough to notice) so i had her start the car and the fans didnt turn on at all while the temp guage topped out again after about 5 min.

i figure its probably the thermostat, Fan Switch/Relay, or the Fan itself. am i on the right track? how hard is it to pull the thermostat or fan switch/relay?

Thanks, Erich
nics
#2
Revemove the ECT switch to see if the fan will run. If not you might have to replace it.

God made man....Everything else...Made in China
Badkarma
#3
Thanks, I'll give it a shot. Now My other celica over heated today after she dropped me off at work. And a/c died
nics
#4
>
QUOTE (Badkarma @ Jul 1, 2009 - 11:31 AM) *
>Thanks, I'll give it a shot. Now My other celica over heated today after she dropped me off at work. And a/c died


The fans should run all the time if you pull it. If you run with the fans on and still overheats, try looking at other areas. Radiator cap, Thermostat or internal leak.


God made man....Everything else...Made in China
Badkarma
#5
i pulled all the "fan relay" 's i could find. i pulled all 3 i found. the connection to the relay in the relay bos on the driver side of the engine bay was messed up. i got it to start up the driver side coolant fan. so now the driver side fan will run on both cars.. but still overheats.

Next is... replace the radiator cap?
nics
#6
>
QUOTE (Badkarma @ Jul 3, 2009 - 6:57 PM) *
>i pulled all the "fan relay" 's i could find. i pulled all 3 i found. the connection to the relay in the relay bos on the driver side of the engine bay was messed up. i got it to start up the driver side coolant fan. so now the driver side fan will run on both cars.. but still overheats.

Next is... replace the radiator cap?


Is there too much pressure when it overheats? Does the coolant look like kinda brownish or traces of oil?
God made man....Everything else...Made in China
laff09
#7
Replacing the radiator cap would be a good idea, poor seal/ broken spring will cause it to overheat.
Badkarma
#8
actually yeah, in the red 96' auto (gf's celica) the coolant looks very brown, almost pastey. like diarhea. haha. i figured rust but we did a coolant flush about 6 months ago. idk if its too much pressure. would that be a problem with the radiator cap?

erich
spy00005
#9
well im having same problem overheating old raid was leaking and cap was busted so like a week ago i bought brand new raid and cap i have good hoses not leaking actually its not leaking at all anymore. fans wouldn't turn on so i unpluged the sensor and their always on but it still over heats but i did notice the bottom hose no matter how hot the engine got it had no pressure and was cold so im gonna replace my thermostat hopefully that fixes it. i would suggest you atleast take a look at that. see if that does anything ill prob let u know if it fixed my prob cuz we might have the same issue. hope that helps. also watch out for leaks. mainly through the reserve tank if it is the preessure might be building and being relesed through that lil hole in the reserve tank.

by the way not 100% sure but i think thermostat is here



This post has been edited by spy00005: Jul 5, 2009 - 10:19 PM
*Thing i want for my car(i wish i had money)*-full gt4 front end conversion(DONE :) JUST NEEDS PAINT(next on to do list)-new seats all around-riser blocks-fog lights-new radio and speakers all around-full bodykit splitters and sideskirts to go with conversion(just needs fitting and painting)-nice rims(Got TC rims and painted them white)-light blue tint (next step will do this right after i get my paint job)WTB Reasonably pricedProjectors just Lows
trdproven
#10
check for leaks in the hoses
leaking water pump
leaking radiator
head gasket blown
94 Celica GT|Toyota OEM Japan|Toyota Racing Development|Tom's|Competition Clutch|5Zigen|Apexi||Laille/Beatrush|Magnecor|Denso|Royal Purple|Optima|PIAA|PW JDM|Megan Racing|Nitto||Work|Greddy|Samco|Project Mu|H&R|Gates|Moog|Rota|Yokohama|Epman|1320|Upgr804 Celica GT|Toyota OEM Japan|Toyota Racing Development|Tein|BC Racing|Greddy|89 Supra (Sold)90 Supra (Sold)
spy00005
#11
okay i replaced my thermostat and ran my car w/ the heat all the way up for 30min and it did not go to half. right just below it the whole time i still don't think 30min is good enough time to be 100% sure that solved my prob but it makes me hopeful. Ill try driving around for a while and see if it overheats if not problem solved the location for the thermostat is excatly where i thought it was but it was a B!tch to get out and i mean just the bottom screw cuz i have ac and the stupid compressor blocks all access to that screw. but i hope this helps you i would def check that out new thermostat plus gasket rubber less than 10 bucks.
*Thing i want for my car(i wish i had money)*-full gt4 front end conversion(DONE :) JUST NEEDS PAINT(next on to do list)-new seats all around-riser blocks-fog lights-new radio and speakers all around-full bodykit splitters and sideskirts to go with conversion(just needs fitting and painting)-nice rims(Got TC rims and painted them white)-light blue tint (next step will do this right after i get my paint job)WTB Reasonably pricedProjectors just Lows
trdproven
#12
one way to test your temp without driving your car around is to hold your throttle down (dont rev it high) steady for a bit until you see the temp rise and steady out.
94 Celica GT|Toyota OEM Japan|Toyota Racing Development|Tom's|Competition Clutch|5Zigen|Apexi||Laille/Beatrush|Magnecor|Denso|Royal Purple|Optima|PIAA|PW JDM|Megan Racing|Nitto||Work|Greddy|Samco|Project Mu|H&R|Gates|Moog|Rota|Yokohama|Epman|1320|Upgr804 Celica GT|Toyota OEM Japan|Toyota Racing Development|Tein|BC Racing|Greddy|89 Supra (Sold)90 Supra (Sold)
spy00005
#14
thats what i did lol trdproven i held it at like 3000 rpms constantly but then rev'ed it up 2 like 5 then let it go down. iknow its equivilent to driving but its not the same ive noticed actually driving is when you see things happen.
*Thing i want for my car(i wish i had money)*-full gt4 front end conversion(DONE :) JUST NEEDS PAINT(next on to do list)-new seats all around-riser blocks-fog lights-new radio and speakers all around-full bodykit splitters and sideskirts to go with conversion(just needs fitting and painting)-nice rims(Got TC rims and painted them white)-light blue tint (next step will do this right after i get my paint job)WTB Reasonably pricedProjectors just Lows
Badkarma
#15
i gotta wait till i get paid next friday.. so ill give the wire connector a shot, and the thermostat if that dont work.

Thanks, Erich
spy00005
#16
okay ive been driving my car since the last post and no overheat at all. actully doesn't even ever get to 1/2. hope u solved ur prob.
*Thing i want for my car(i wish i had money)*-full gt4 front end conversion(DONE :) JUST NEEDS PAINT(next on to do list)-new seats all around-riser blocks-fog lights-new radio and speakers all around-full bodykit splitters and sideskirts to go with conversion(just needs fitting and painting)-nice rims(Got TC rims and painted them white)-light blue tint (next step will do this right after i get my paint job)WTB Reasonably pricedProjectors just Lows
Badkarma
#17
i disconnected the fan switch at the bottom of the rad. it started both fans, and the temp rose to half way, stayed there for ab out 10 min. then rose to max. the fans stayed on the entire time. tomorrow im going to buy a radiator cap, thermostat and some flush. we'll see if that works. i hope it fixes it. im hoping this works. been bumming rides 2 weeks till this paycheck.

another question though. if unplugging the fan switch is the only way the fans start. is that a problem with the relay, switch, fans, or the thermostat not working??

Thanks, Erich
Badkarma
#18
well, the bolt to the thermostat on the 94 5spd is pretty rusted. and the head is rounded. so i tried just the new radiator cap in that celica and it didnt help. still overheated after about 5-10 min.

the 96 auto celica didnt repsond to a new thermostat or a new radiator cap either.overheated after 5-10min. i dunno what to do next.

both cars had the fans running the whole time.

Erich
nics
#19
>
QUOTE (Badkarma @ Jul 16, 2009 - 10:10 PM) *
>i disconnected the fan switch at the bottom of the rad. it started both fans, and the temp rose to half way, stayed there for ab out 10 min. then rose to max. the fans stayed on the entire time. tomorrow im going to buy a radiator cap, thermostat and some flush. we'll see if that works. i hope it fixes it. im hoping this works. been bumming rides 2 weeks till this paycheck.

another question though. if unplugging the fan switch is the only way the fans start. is that a problem with the relay, switch, fans, or the thermostat not working??

Thanks, Erich


No problem with the relay and fans. Does you fans EVER come on when everything is connected?


>
QUOTE (Badkarma @ Jul 17, 2009 - 6:36 PM) *
>well, the bolt to the thermostat on the 94 5spd is pretty rusted. and the head is rounded. so i tried just the new radiator cap in that celica and it didnt help. still overheated after about 5-10 min.

the 96 auto celica didnt repsond to a new thermostat or a new radiator cap either.overheated after 5-10min. i dunno what to do next.

both cars had the fans running the whole time.

Erich


It does push all the coolant in the reservoir, isnt it? if thats the case then it would prolly b an internal leak.

Be prepared to spend $$
God made man....Everything else...Made in China
Badkarma
#20
great.. could it be waterpump? in the 96 auto, when i took the rad cap off it was covered in rust/dirt. very gritty feeling. that cant be good.

and the 94 5 spd i took the rad cvap off and it smelled like...fish. odd. right?i think i may take one to a shop so i can at least have one to drive for now. and maybe get an educated heads up on what the problem could be with the other celica.

Erich
nics
#21
>
QUOTE (Badkarma @ Jul 18, 2009 - 1:01 PM) *
>great.. could it be waterpump? in the 96 auto, when i took the rad cap off it was covered in rust/dirt. very gritty feeling. that cant be good.

and the 94 5 spd i took the rad cvap off and it smelled like...fish. odd. right?i think i may take one to a shop so i can at least have one to drive for now. and maybe get an educated heads up on what the problem could be with the other celica.

Erich


Man, I suggest you get professional help wink.gif

Have it checked by a mechanic and ask what part will you need to get it fixed. I also recommend getting oem part from 1sttoyotaparts.com

If your not satisfied with the mechanic, get a second opinion from another mech.

I suggest you save $$ for parts and labor.
God made man....Everything else...Made in China
Badkarma
#22
a friend of mine got the red 96 auto running. and not overheating. just had to be burped.. there was quite a bit of air that needed to get out.

tried the same thing with the 94 5spd, but no luck. gonna change the thermostat on the 94 next. but the bolt head has been rounded off, and ill need to move the compressor out ot the way for easier access.

Thanks for all the help. one down, one to go.

Erich
nics
#23
>
QUOTE (Badkarma @ Jul 23, 2009 - 8:08 PM) *
>a friend of mine got the red 96 auto running. and not overheating. just had to be burped.. there was quite a bit of air that needed to get out.

tried the same thing with the 94 5spd, but no luck. gonna change the thermostat on the 94 next. but the bolt head has been rounded off, and ill need to move the compressor out ot the way for easier access.

Thanks for all the help. one down, one to go.

Erich


Good to hear u guys got 1 car fixed! Let us know what you will you on the 5spd, might be helpful for others in the future!
God made man....Everything else...Made in China
Badkarma
#24
well, the auto that was fixed broke down the other day. just needed coolant. its either leaking(which i cant find a leak anywhere.) or its burning it up.so my gf is driving it around now and just refilling the rad every few days. hope its not a headgasket. but i guess it would be a good learning experience.

i bought a radiator today for the 5spd. i looked yesterday and it doesnt have any coolant flowing through, its full, but the coolant isnt moving. im thinking the rad is clogged up somewhere. when at operating temp, one side of rad is hot as hell, but the other side is... not so hot. just warm.

ill replace the rad. this weekend and ill keep you posted.

Erich
Badkarma
#25
got the 94 5 spd running without overheating. seems that replacing the radiator and thermostat solved it. finally got the nut off of the water inlet convering the thermostat and a boatload of coolant poured out.(after draining rad)

Anyway, works good now. hopefully this is a permanent fix. One down, One to go...Again..

got a radiator from keystone through the body shop i work at. everything was in the correct place. no problem with fitment or functionality. it was about 140$.

Thanks for the help. ill keep you posted on the 96 auto now.

Erich
dliverance
#26
man this is scary...all this head gasket talk. my car is starting to do the same thing. but its wierd. i have pressure in both hoses right when i start the car, but i haven't checked with a cold start. i have a new rad. fresh coolant, but i keep having to add coolant/water even tho i don't see a leak. and also when i turn on the heater at mid temp i get no heat. just cold air. like a/c air. i'm praying this isn't going to be my head gasket.i think i'm going to try the rad cap, then thermostat next. even tho the girl i just bought the car from says she just changed it last month. Nothing like a hot car in florida in the middle of the summer.
nics
#27
>
QUOTE (dliverance @ Aug 11, 2009 - 1:03 PM) *
>man this is scary...all this head gasket talk. my car is starting to do the same thing. but its wierd. i have pressure in both hoses right when i start the car, but i haven't checked with a cold start. i have a new rad. fresh coolant, but i keep having to add coolant/water even tho i don't see a leak. and also when i turn on the heater at mid temp i get no heat. just cold air. like a/c air. i'm praying this isn't going to be my head gasket.i think i'm going to try the rad cap, then thermostat next. even tho the girl i just bought the car from says she just changed it last month. Nothing like a hot car in florida in the middle of the summer.


sound like a clogged heater core.. did you ever use stop leak products?
God made man....Everything else...Made in China
dliverance
#28
no, should i try them out? or just bypass the heater for now and see if that helps?

ok, i just went to bypass the heater core and i noticed that it has already been done.and when i touch the hoses, the top one is piping hot and the lower one is just mildly hot so i'm thinking its the thermostat.

This post has been edited by dliverance: Aug 12, 2009 - 12:08 PM
nics
#29
>
QUOTE (dliverance @ Aug 12, 2009 - 8:52 AM) *
>no, should i try them out? or just bypass the heater for now and see if that helps?

ok, i just went to bypass the heater core and i noticed that it has already been done.and when i touch the hoses, the top one is piping hot and the lower one is just mildly hot so i'm thinking its the thermostat.


honestly I tried those stop leak products but i wouldnt recommend it for you to try. It worked for me for a bit but after a few months to a few week to a few days and it will go back losing coolant. From what I've searched on this forum it could cause your heater to clog, but my heater worked fine.

I know your losing coolant for a bit, but are you overheating?
God made man....Everything else...Made in China
dliverance
#30
ah ok. i just took the 1.1 rad cap from my other celica and put it on and it didn't overheat as fast as the 0.9 cap did. so i don't know just what to do yet. i think once i get out of work i'm gonna grab a thermostat and the 1.3 rad cap that the parts store recommends using.hopefully that'll solve the problem.
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