07-24-2008
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#1
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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1g overheating.
my car overheats, fans turn on at 196, new 160 t-stat. WP has about 10k on it tops. koyo radiator, 1 12" and 1 10" fan wired to turn on like stock.
Whenever i drive around temps stay around 200 sometimes more, will go over 210 if i do a pull.
Don't know what else to do, gonna replace the cap with a 16lbs one and put in water wetter.
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07-24-2008
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#2
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formerly ecoli
Join Date: Oct 2003
Location: On the dyno
Posts: 4,892
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Re: 1g overheating.
Does your dash temp gauge go past straight up and down? Those would be normal temps on a 2G, maybe your sensor just reads a bit high.
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07-24-2008
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#3
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Join Date: Nov 2005
Location: Cottage Grove
Drives: Silver '02 IS300, Blue '06 Suzuki SV1000
Posts: 5,293
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Re: 1g overheating.
Are you pushing coolant? When my car was pushing, it ran a little warmer than normal and would heat up after a pull.
__________________
'02 Lexus IS300
'06 Suzuki SV1000: Back on the road and ripping hard as ever!
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07-24-2008
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#4
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: 1g overheating.
i haven't found any coolant pushing.
Gauge is going straight up, but more importantly i am logging cruising temps of 200-206, it sucks last year i would cruise at high 170s, maybe 180s with the same setup.
I grabbed a coolant pressure tester hopefully tomorrow i can see if there are any leaks, the only thing i can think of right now is that i didn't turn on the heater when i filled the coolant this time around, but i am uncertain if i did or not.
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07-25-2008
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#5
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: 1g overheating.
Welcome to my nightmare. I will be ditching my Checker 160 thermostat and going back to an OEM Mitsu one as I have heard they just perform better. I will also be buying a new temp sensor.
Good luck man, I feel your pain.
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07-25-2008
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#6
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Kevin
Join Date: Jan 2004
Location: Shoreview
Posts: 3,356
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Re: 1g overheating.
I sometimes also get a tiny bit higher coolant temps than I want (past the E lol) At what temp does the OE thermostat open?
__________________
Misses the Mitsu Community
Currently on Corvette #4
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07-25-2008
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#7
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is Nashty
Join Date: Oct 2007
Location: Stillwater
Drives: Cyborg from Japan
Posts: 2,080
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Re: 1g overheating.
Sounds like the thermostat might be sticking. My friend's 2g used to run a little hotter once and a while and that was the cause..
__________________
-1990 Mitsubishi Cyborg 4WD-
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07-25-2008
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#8
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: 1g overheating.
Its a new stat, but yes it is a checker t-stat (beck-arnley).
Maybe i will have to go to OEM mitsu too.
B man what coolant sensor you gonna replace? I was thinking the one on the radiator because i don't know if my fans are turning on at low speed, just high speed.
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07-25-2008
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#9
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: 1g overheating.
I've had good luck with OEM Mitsu and Napa 180* thermostats.
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07-25-2008
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#10
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Re: 1g overheating.
200 or so isnt that hot. My car used to sit at around 210 during the summer, with AC on it would climb even higher, so I didnt use that often.
How many fans do you have? I think that was my problem.
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07-25-2008
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#11
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: 1g overheating.
I actually just replaced the switch in the radiator. If your fans aren't coming on, that could be it. I will be replacing the one around the T-Stat housing though, the one that sends the temp signal to the ECU.
And I believe the OEM thermostat opens at 180.
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07-25-2008
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#12
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: 1g overheating.
OEM thermostat is rated at 194* I believe.
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07-25-2008
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#13
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It was a auto get over it
Join Date: Apr 2006
Location: rochester mn
Drives: something better then you
Posts: 1,987
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Re: 1g overheating.
Have you thought about wiring your fans to be on all the time or by switch
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07-25-2008
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#14
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: 1g overheating.
Start by getting some fresh coolant and some Water Wetter in there.
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07-26-2008
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#15
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: 1g overheating.
I had an issue with a cheap t-stat too. Damn thing was bad right out of the package. I only use Mitsu ones now. I thought I remembered reading that there were some lower temp Mitsu ones, but that was a while ago.
__________________
Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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07-26-2008
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#16
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: 1g overheating.
I keep reading that there are 180 ones around, i called BP mitsu and they only have a 88C one, yeah dumb ass didn't know what it was in F. Any who its a 190 they have which makes sense since that is when the ecu goes into learn mode.
I keep hearing that there is a 180 from mitsu, but that dude at BPM didn't know of it.
Also, i wanted to know if anyone knows how the Fans work?
By this i mean do they have 2 speeds at which they turn on, mine right now kick on at 203 but at a really high speed, isnt there some lower speed that they turn on?
Brandon was telling me that he heard of using a diff sensor (ford, gm, etc) to have the fans turn on at a lower temp. does anyone know about this?
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07-26-2008
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#17
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Join Date: Nov 2005
Location: Cottage Grove
Drives: Silver '02 IS300, Blue '06 Suzuki SV1000
Posts: 5,293
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Re: 1g overheating.
As far as I know, the fans only have one speed.
__________________
'02 Lexus IS300
'06 Suzuki SV1000: Back on the road and ripping hard as ever!
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07-26-2008
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#18
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: 1g overheating.
Ok, thanks.
Well i found a 170 stat from mitsu, its on the way thanks to Bill@MAP.
ALso i put on the 16lbs cap.
I will also be trying to make some ducting soon.
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