Thread: Thermostat help on a 3.1

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  1. #1 Thermostat help on a 3.1 
    ch1620
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    Default 06-07-2013
    I'm changing the thermostat on a 2002 Gran Prix 3.1. Having trouble accessing the bottom bolt on the housing. Any suggestions?
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  2. #2 Re: Thermostat help on a 3.1 
    dbextreme
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    Default 06-07-2013
    I had to go get a cheap wrench from Autozone and bend it. IIRC, the housing is right behind the crossover pipe and is a PITA to get to!!!
    1999 GPGT - L26, Ported Top Swap, XP Cam, 3.2 MPS, 42.5#, N*, LQ4, SD Headers, Double Roller, TEP Race Trans w/Stand alone Cooler, Precision Industries 3000RPM Stall, 75 Shot Nitrous Express Proton Kit w/Purge, 3" Dual Borla Pro XS, Corsa Dual 3.5 Tips, 5% Tint
    1995 Firebird Formula - Under the Knife
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  3. #3 Re: Thermostat help on a 3.1 
    dsmuts
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    Default 06-07-2013
    The bottom of the thermostat housing is slotted so the bolt doesn't need to come completely out.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
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