Toyspeed.org.nz Message Board

by **gleem** » Mon May 03, 2010 7:52 am

4age blacktop. takes car 5 mins of triving to get just above the c line (cold). if i stop and let idle it goes up to just over a 3rd. then 1 minute of driving again to drops all the way. I have changed the thermostat but didnt do any thing, old one workes fine but the rubber seal was a bit worn and wouldnt completly seal when closed. Ive also changed the water temp sensor. But by feeling the hoses once warm they were only work so its not a temp sensor.

Any other comments?

by **mr30%jr** » Mon May 03, 2010 9:00 am

TGP thermostat? or cheap shite one?

they can be faulty from new you know?

by **gleem** » Mon May 03, 2010 9:29 am

cheap shite one, but origanal wasnt really broken to start with and the new one was closed when new so i dont know how it would instantly be stuck open on first time

by **Mr Revhead** » Mon May 03, 2010 10:16 am

Faulty sensor maybe

by **Malcolm** » Mon May 03, 2010 10:53 am

I used a cheap thermostat in my MR2 and had the same issues with it being slow to heat up and cooling down at higher speeds, so I got a TGP one and all was fixed.

by **rollaholic** » Mon May 03, 2010 12:55 pm

is the fan working correctly? its not on fulltime is it

by **iOnic** » Mon May 03, 2010 1:02 pm

Pull the thermostat out and check/test it? If your car was warming up fine and holding temperature and now it doesn't.......and the only change you've made is the thermostat + sensor - seems like a likely place to start looking?

Website · by **Rych** » Mon May 03, 2010 1:15 pm

My Evo used to do that, would get to full temp when idling for awhile but drop when travelling at a 100km consistantly.

Only when it was coolish weather, when really hot it would stay at full temp. Never figured it out, but was really annoying as the idle would always be high because it thought the engine was cold...

by **MAGN1T** » Mon May 03, 2010 4:57 pm

A headgasket will fix it.

Steve

by **Mr Revhead** » Mon May 03, 2010 4:59 pm

Where ya been!! We missed ya!! :oops:

by **frost** » Tue May 04, 2010 12:09 am

make sure the bobby is at the top when installing the thermo, if not then it might cause air pocket,

by **frost** » Tue May 04, 2010 12:10 am

MAGN1T wrote:A headgasket will fix it.

Steve

blacktops dont blow head gaskets, they throw rods or run #4 bearing,

Corolla FXGT · by **Brick** » Tue May 04, 2010 12:11 am

dam he beat me to it, i was going to say headgasket

:lol:

by **gleem** » Tue May 04, 2010 8:58 am

Fan doesnt come on at all, Just purchased the car and it had this problem, Doesnt ues water or any thing relating to the head gaskit

by **MAGN1T** » Tue May 04, 2010 10:05 am

Ahhhh, bought a lemon.

If the last owner had any clues they would have dropped a bottle of additive into the cooling system, that should hide most of the symptoms for the next 3 months or so.
I'd suspect that the gauge is reading wrong too. Try earthing the wire that pulls off the sensor, make sure the gauge creeps up to the red when you turn on the key.

Steve

by **tsoob** » Tue May 04, 2010 11:35 am

MAGN1T wrote:Ahhhh, bought a lemon.

If the last owner had any clues they would have dropped a bottle of additive into the cooling system, that should hide most of the symptoms for the next 3 months or so.
I'd suspect that the gauge is reading wrong too. Try earthing the wire that pulls off the sensor, make sure the gauge creeps up to the red when you turn on the key.

Steve

then change the headgasket

by **mr30%jr** » Tue May 04, 2010 3:01 pm

tsoob wrote:
MAGN1T wrote:Ahhhh, bought a lemon.

If the last owner had any clues they would have dropped a bottle of additive into the cooling system, that should hide most of the symptoms for the next 3 months or so.
I'd suspect that the gauge is reading wrong too. Try earthing the wire that pulls off the sensor, make sure the gauge creeps up to the red when you turn on the key.

Steve

then change the headgasket

what the hell..

there will be nothing wrong with the HG just put a fricken new TGp thermostat in it and STFU if its not boiling and is running ok just leave it the hell alone

by **touge_ae101** » Tue May 04, 2010 3:19 pm

would test the temp guage as that could be playing with your head a bit. other than that you could check waterpump/alternator belt isn't slipping and causing the water pump to work intermidently. but that would be quite unlikely.

by **gleem** » Sat May 22, 2010 2:29 pm

ok. put a new tgp thermo stat in and now it gets up to tempreture but the top hose gets really hot and bottom hose not at all? at normally operating tempreture. half way. I know this shouldnt be right

by **Boosted_162** » Sat May 22, 2010 2:32 pm

gleem wrote:ok. put a new tgp thermo stat in and now it gets up to tempreture but the top hose gets really hot and bottom hose not at all? at normally operating tempreture. half way. I know this shouldnt be right

Radiator possibly blocked and not cooling properly.

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Water temp flucuations - not theremo stat

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