strange temp gauge activity - Page 2

mrnickleye · 08-02-2007, 05:30 AM

OK...I'll spill the beans. Mine did the same EXACT thing.
Block test showed no problems.

Finally (a month later) put the smog machine tailpipe tester probe at the open radiator cap while engine was idling.
BINGO.......a few hundred HCs. = BHG

All better now, 2.3 years.

PS: coolant goes into overflow bottle from engine, which leaves air is in the passages.

Over night the coolant should get sucked back into engine as it cools down.

D_Train · 08-02-2007, 07:07 PM

Quote:

Originally Posted by mrnickleye

OK...I'll spill the beans. Mine did the same EXACT thing.
Block test showed no problems.

Finally (a month later) put the smog machine tailpipe tester probe at the open radiator cap while engine was idling.
BINGO.......a few hundred HCs. = BHG

All better now, 2.3 years.

PS: coolant goes into overflow bottle from engine, which leaves air is in the passages.

Over night the coolant should get sucked back into engine as it cools down.

Thats what it does. I'd just hate to pay a shop all the fucking money and then have it not be it. i'm gonna try the thermostat first.

ddmcse · 08-03-2007, 01:19 PM

i took my car to toyota and they told me i didn't have a blown head gasket .
they were wrong ,wrong, wrong

<insert Queen song here>

mrnickleye · 08-06-2007, 05:47 AM

Repeat..
NOTE: A friend's '92 turbo over heating was a dirty radiator.

I just talked to him, and after 2 weeks of driving, it never gets hot any more.

If block test, AND emission snffer test are OK, then try radaitor cleanout or replacement.

88Tsupra · 08-06-2007, 06:37 AM

mines does the same as your only when i hit turns at speeds of 20mph making left or right ..buh it goes back to normal...ill let you know when i find my issue

dcrusupra · 08-06-2007, 03:18 PM

Quote:

Originally Posted by mrnickleye

Repeat..
NOTE: A friend's '92 turbo over heating was a dirty radiator.

I just talked to him, and after 2 weeks of driving, it never gets hot any more.

If block test, AND emission snffer test are OK, then try radaitor cleanout or replacement.

True. After I swapped my turbo engine in, I used my OLD radiator from my red car and it over heated on a long highway drive. Turned out to be a dirty radiator. So I bought a new radiator and a new fan shroud.

D_Train · 08-06-2007, 04:10 PM

Quote:

Originally Posted by dcrusupra

True. After I swapped my turbo engine in, I used my OLD radiator from my red car and it over heated on a long highway drive. Turned out to be a dirty radiator. So I bought a new radiator and a new fan shroud.

hmmmm... radiators aren't that hard to replace and pretty cheap right? Maybe i'll try that. or should I just try flushing the radiator first? is there anything that "cleans" it

fulljapan · 08-06-2007, 04:23 PM

I work in a Pennzoil and there is a lot of 2 step products to clean it or you can always do a Rad flush !

mrnickleye · 08-07-2007, 04:46 AM

http://www.toyota-supra.info/forums/...ead.php?t=9250

D_Train · 08-24-2007, 09:38 PM

Radiator Cap. I'm out $9.99 + $100 for testing at two different shops. No BHG though! :-D

Radiator cap was causing the coolant system to depressurize. Fun.

08-02-2007, 05:30 AM	#11
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	OK...I'll spill the beans. Mine did the same EXACT thing. Block test showed no problems. Finally (a month later) put the smog machine tailpipe tester probe at the open radiator cap while engine was idling. BINGO.......a few hundred HCs. = BHG All better now, 2.3 years. PS: coolant goes into overflow bottle from engine, which leaves air is in the passages. Over night the coolant should get sucked back into engine as it cools down. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08. Last edited by mrnickleye; 08-02-2007 at 05:33 AM.

08-03-2007, 01:19 PM	#13
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	i took my car to toyota and they told me i didn't have a blown head gasket . they were wrong ,wrong, wrong <insert Queen song here> __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

08-06-2007, 05:47 AM	#14
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Repeat.. NOTE: A friend's '92 turbo over heating was a dirty radiator. I just talked to him, and after 2 weeks of driving, it never gets hot any more. If block test, AND emission snffer test are OK, then try radaitor cleanout or replacement. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

08-06-2007, 06:37 AM	#15
88Tsupra 12psi boost Join Date: Jan 2007 Location: long beach, CA Posts: 252	mines does the same as your only when i hit turns at speeds of 20mph making left or right ..buh it goes back to normal...ill let you know when i find my issue __________________ 88turbo targa-white original Pin Stripe custom intake-Tenzo filter.....Momo racing seats and steering wheel... apexi exhaust tip-custom 3" piping. Replaced with RSR GT II NGK plug and wires HID conversion head lights HKS Turbo Timer Type-1 (in black) Tial BOV BIC DDP

08-07-2007, 04:46 AM	#19
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	read this thread http://www.toyota-supra.info/forums/...ead.php?t=9250 __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

08-06-2007, 04:23 PM	#18
fulljapan 3" Exhaust Join Date: Jul 2007 Location: Canada Posts: 69	I work in a Pennzoil and there is a lot of 2 step products to clean it or you can always do a Rad flush !

08-24-2007, 09:38 PM	#20
D_Train 3" Exhaust Join Date: Mar 2007 Location: Wisconsin Posts: 214	Fixed!! Radiator Cap. I'm out $9.99 + $100 for testing at two different shops. No BHG though! :-D Radiator cap was causing the coolant system to depressurize. Fun.

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