Thread: thermostat swap

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  1. #1 thermostat swap 
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    hey guys new here i got an 06 gp sc i just picked up a 180 degree thermostat was wondering if there was a write up anywhere that i might have missed or give me sime advice on how to swap thanks for any info is apreciated
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  2. #2 Re: thermostat swap 
    Donating Users Kejross's Avatar
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    easiest mod ever... just look at it and folow your upper radiator hose back to the motor... theres a metal piece it clamps to and two bolts holdin it down take those bolts out and pay attention to how the origional was in there, replace and put back together

    btw a pcm with altered fan temps is a great way to actually take advantage of it too... otherwise youll have a wide swing on the temps when not moving. no biggie though and no reason to be concerned
    SOLD-98 4dr GTP, l32 Swapped, IS2 heads, IS3 cam, S2 intercooler, S3 FMHE, E85, 65# inj, N* TB w/LQ4, OBX Headers, Borla catback, 3.0 zzp mps, lc-1 wideband, HP Tuners, PRJ wires, FWI, Lowered. 04 GTO M6, 07 Grand Prix LS4 powered GXP. 98 V6 GMC SWB, exhaust, custom intake. 09 HHR (Wifes)
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  3. #3 Re: thermostat swap 
    GPFs Sexy Ginger. SilvaMan61's Avatar
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    the swap is really simple and straight forward. I did it on my 99 gtp with no mechanical experiecne at all. it may be slightly differnt on yours but should be similar.

    all you have to do is follow the larger radiator hose towards the engine (driver side on my 99, should be on yours too), you should see a metal housing thats somewhat bell shaped, this is the t stat housing. i belive there were just 3 or 4 bolts holding it in place. remove these and lift up the housing ( have a good sized bowl or something ready because coolant will spill out, also GIVE THE ENGINE PLENTY OF TIME TO COOL the sh!t will be HOT otherwise.) now you should see the t stat sitting there. just pull and replace. reinstall housing and your done.
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  4. #4 Re: thermostat swap 
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    Quote Originally Posted by Kejross View Post
    easiest mod ever... just look at it and folow your upper radiator hose back to the motor... theres a metal piece it clamps to and two bolts holdin it down take those bolts out and pay attention to how the origional was in there, replace and put back together

    btw a pcm with altered fan temps is a great way to actually take advantage of it too... otherwise youll have a wide swing on the temps when not moving. no biggie though and no reason to be concerned
    all that typing for nothing? you bastardo lol... x2 on pcm, theres nothin wrong with running without it, itll just be more effecient with it
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  5. #5 Re: thermostat swap 
    Donating Users Kejross's Avatar
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    beat ya! ha!
    SOLD-98 4dr GTP, l32 Swapped, IS2 heads, IS3 cam, S2 intercooler, S3 FMHE, E85, 65# inj, N* TB w/LQ4, OBX Headers, Borla catback, 3.0 zzp mps, lc-1 wideband, HP Tuners, PRJ wires, FWI, Lowered. 04 GTO M6, 07 Grand Prix LS4 powered GXP. 98 V6 GMC SWB, exhaust, custom intake. 09 HHR (Wifes)
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  6. #6 Re: thermostat swap 
    Donating Users Kejross's Avatar
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    oh and when your done open that brass screw on top to bleed out any air. just leave it open til it flows solid coolant...
    SOLD-98 4dr GTP, l32 Swapped, IS2 heads, IS3 cam, S2 intercooler, S3 FMHE, E85, 65# inj, N* TB w/LQ4, OBX Headers, Borla catback, 3.0 zzp mps, lc-1 wideband, HP Tuners, PRJ wires, FWI, Lowered. 04 GTO M6, 07 Grand Prix LS4 powered GXP. 98 V6 GMC SWB, exhaust, custom intake. 09 HHR (Wifes)
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  7. #7 Re: thermostat swap 
    GPFs Sexy Ginger. SilvaMan61's Avatar
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    Quote Originally Posted by Kejross View Post
    beat ya! ha!
    yeah typing with a cig in one hand and a cast on the other is a b!tch lol
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  8. #8 Re: thermostat swap 
    Donating Users Kejross's Avatar
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    Quote Originally Posted by SilvaMan61 View Post
    yeah typing with a cig in one hand and a cast on the other is a b!tch lol
    no excuse i just had a plate and 5 screws put in my shoulder, its like the worlds most useless limb right now and i been drinking beer and eating popcorn with the other
    SOLD-98 4dr GTP, l32 Swapped, IS2 heads, IS3 cam, S2 intercooler, S3 FMHE, E85, 65# inj, N* TB w/LQ4, OBX Headers, Borla catback, 3.0 zzp mps, lc-1 wideband, HP Tuners, PRJ wires, FWI, Lowered. 04 GTO M6, 07 Grand Prix LS4 powered GXP. 98 V6 GMC SWB, exhaust, custom intake. 09 HHR (Wifes)
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  9. #9 Re: thermostat swap 
    GT Level Member Haulero's Avatar
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    Quote Originally Posted by SilvaMan61 View Post
    the swap is really simple and straight forward. I did it on my 99 gtp with no mechanical experiecne at all. it may be slightly differnt on yours but should be similar.

    all you have to do is follow the larger radiator hose towards the engine (driver side on my 99, should be on yours too), you should see a metal housing thats somewhat bell shaped, this is the t stat housing. i belive there were just 3 or 4 bolts holding it in place. remove these and lift up the housing ( have a good sized bowl or something ready because coolant will spill out, also GIVE THE ENGINE PLENTY OF TIME TO COOL the sh!t will be HOT otherwise.) now you should see the t stat sitting there. just pull and replace. reinstall housing and your done.
    I would like to do that to my 97, should be the same right? what kind of thermostat do I need to get? cause there are 2 types (if I remember good) I want to change it because lately, my car temperature stays on almost 210 mark
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  10. #10 Re: thermostat swap 
    GPFs Sexy Ginger. SilvaMan61's Avatar
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    its the same deal dude, what two types are you refering to?
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  11. #11 Re: thermostat swap 
    The mod from over yonder TheOtherNick's Avatar
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    Its 2 bolts, get a 180* tstat.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
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  12. #12 Re: thermostat swap 
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    yeah that! I heard of a 180 and 195? thats why I said two types
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  13. #13 Re: thermostat swap 
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    yupp 180 es goodo
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  14. #14 Re: thermostat swap 
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    195 for any car with a pulley larger than a 3.4 or N/A..............
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  15. #15 Re: thermostat swap 
    SE Level Member rmil03's Avatar
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    and whats this do..... sorry im just being dumb right now, does you engine run cooler with a smaller tstat in it?
    '01 gpgt, tinted tails, k&n custom intake, lime green engine bay, straight pipe exhaust, gold/black interior. dirrrrrtydir
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  16. #16 Re: thermostat swap 
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    uh no? either its the right size or its the wrong size.

    Since you're stock, run the stock temperature t-stat.
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  17. #17 Re: thermostat swap 
    SE Level Member GTX98's Avatar
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    Does changing out the t-stat make a noticeable difference for performance?
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  18. #18 Re: thermostat swap 
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    hells to the no!

    Stick with stock till youre running something more extreme than a 3.4 setup.
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  19. #19 Re: thermostat swap 
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    Not to hijack the thread...but can somebody tell me if the tstat on an 03 SE sits on it's side as opposed to the traditional upright position?
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  20. #20 Re: thermostat swap 
    The mod from over yonder TheOtherNick's Avatar
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    yup they are a pita on the 3.1,3.4
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
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