Bleh...... Thermo problems????

AlexSchuSupra · 01-31-2009, 12:11 AM

Ok so I have an 87 Supra N/A with the 5 spd. Anyway I bought this car with 100,000 miles! When I purchased the vehicle it had to have ALL belts replaced and a new water pump (along with gasket) radiator engine flush w/ chemicals and a new thermostat. Anyway the car is doing great except for this missfire due to the cyl 3 gasket but that is an easy fix. But just recently my thermo gauge had been flipping out on me! This car NEVER got hot no matter how hard I run it! But now from time to time the thermo gauge will go ALL the way up to the top and then spike back down to more normal temperatures. Anyway I checked the oil level just to make sure I was not stupid and gonna blow a head.....full oil! Coolant level is also full and its clean and new! So i am coming to the conclusion that the thermostat they have replaced may have been faulty! The engine still does not seem to get hot and even when the gauge is all the way up I can stand with my face over it and not feel the heat! So I was just trying to get a second opinion on the matter and find out what you guys thought.
Thanks!

CyFi6 · 01-31-2009, 05:49 AM

If its floppin up and down it could be an electrical issue. Check the connections on the thermostat housing in the engine bay. Wouldnt be a bad idea to do the thermostat. By the way, we have an AZ supra forum if you want to join!
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ddmcse · 01-31-2009, 01:11 PM

you are not going to be able to trust that gauge anymore , so start researching your new temp gauge and where you're going to mount it .

http://www.ddmcse.com/turbo/SANY2004.JPG

tak2099 · 01-31-2009, 09:09 PM

It could be the temp sensor. they're only a couple bucks at the parts store. I would start there.

01-31-2009, 12:11 AM	#1
AlexSchuSupra Intake Join Date: Jan 2009 Location: Scottsdale, AZ Posts: 42	Bleh...... Thermo problems???? Ok so I have an 87 Supra N/A with the 5 spd. Anyway I bought this car with 100,000 miles! When I purchased the vehicle it had to have ALL belts replaced and a new water pump (along with gasket) radiator engine flush w/ chemicals and a new thermostat. Anyway the car is doing great except for this missfire due to the cyl 3 gasket but that is an easy fix. But just recently my thermo gauge had been flipping out on me! This car NEVER got hot no matter how hard I run it! But now from time to time the thermo gauge will go ALL the way up to the top and then spike back down to more normal temperatures. Anyway I checked the oil level just to make sure I was not stupid and gonna blow a head.....full oil! Coolant level is also full and its clean and new! So i am coming to the conclusion that the thermostat they have replaced may have been faulty! The engine still does not seem to get hot and even when the gauge is all the way up I can stand with my face over it and not feel the heat! So I was just trying to get a second opinion on the matter and find out what you guys thought. Thanks!

01-31-2009, 01:11 PM	#3
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	you are not going to be able to trust that gauge anymore , so start researching your new temp gauge and where you're going to mount it . http://www.ddmcse.com/turbo/SANY2004.JPG __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

01-31-2009, 09:09 PM	#4
tak2099 3" Exhaust Join Date: Jul 2007 Location: ohio Posts: 90	It could be the temp sensor. they're only a couple bucks at the parts store. I would start there. __________________ 1988 supra turbo. In process of modding:Roll cage, seats, dp, 3" intercooler, fuel upgrades, and turbo upgrades next.

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01-31-2009, 05:49 AM	#2
CyFi6 3" Exhaust Join Date: Oct 2007 Location: SLO Posts: 234	If its floppin up and down it could be an electrical issue. Check the connections on the thermostat housing in the engine bay. Wouldnt be a bad idea to do the thermostat. By the way, we have an AZ supra forum if you want to join! AZSupraCentral Forums (Powered by Invision Power Board)