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09-04-2006, 04:06 PM
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#1 |
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Registered User
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Stuck Thermostat?
When I've parked the truck after driving it the past 2 days, I've noticed that i've been dropping some coolant overflow. The temperature's been in the low 90's which is to say average for around here and I haven't added any coolant in months. Once it cools down I'll check the radiator to see how much has been dropped but what do you guys think? Normal or possible stuck thermostat?
Oh yeah, my temp gauge doesn't really work either. |
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09-04-2006, 04:08 PM
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#2 |
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67-72 parts finder
Join Date: Aug 2006
Location: southeast mo
Posts: 788
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Re: Stuck Thermostat?
take the thermostat out and take something like a torch or maybe a lighter even or something to heat it with hold it with some pliers and see if it opens shouldn't take more than a minute or two that will tell you if its stuck
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  1969 chevy shortstep 2wd (under construction)1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb) |
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09-04-2006, 04:45 PM
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#3 |
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Registered User
Join Date: Sep 2003
Location: New Salem, ND
Posts: 1,558
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Re: Stuck Thermostat?
Heat some water up to the temp it is supposed to open up at and drop it in and see what it does, if it doesn't open all the way up it is shot. I would say don't use a torch or direct flame, just because it opens with a torch doesn't mean it will open with hot water.
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07 Chevy classic LBZ Duramax (a few mods) '67 Chevy 1/2 ton 2wd (in pieces) '69 Chevy 1/2 ton 2wd (on hold) '71 GMC 3/4 ton 4x4 ‘71 GMC 1/2 ton 2wd suburban |
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09-04-2006, 05:21 PM
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#4 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Stuck Thermostat?
lots of people just dont take the time to fill the radiator correctly filled cold it'll leak out like that
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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09-04-2006, 05:33 PM
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#5 |
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Registered User
Join Date: Aug 2006
Location: Worley, ID
Posts: 48
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Re: Stuck Thermostat?
A pan of water on the stove works great
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09-04-2006, 09:55 PM
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#6 |
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Registered User
Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: Stuck Thermostat?
Thansk for the advice all, I'll give the hot water a try.
cdowns, I haven't topped off the coolant in a couple of months so I'm not sure why it would start overflowing now all of a sudden. |
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09-05-2006, 12:19 AM
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#7 |
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what happened to flint mi
Join Date: Oct 2005
Location: san diego
Posts: 436
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Re: Stuck Thermostat?
before you pull the t stat you could pull the radiator cap, clamp off the heater hoses and let it run till it gets hot. the water in the radiator should appear to be to be moving if your t stat is good as well as your upper and lower hoses should be hot , your radiator could be plugged as well .
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71 swb 2wd fleet frame off in progress 72 4x4 blazer daily driver 70 olds cutlass s mint condition owned by a grandma 56 gmc 2wd project waitng 97 fiance mobile Last edited by tom71; 09-05-2006 at 01:00 AM. Reason: more in fo |
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