Thread: Changing thermostat on a 2002 Gran Prix 3.1,need info.

Results 1 to 9 of 9
  1. #1 Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    SE Level Member
    Join Date
    Jun 2013
    Location
    West Valley City,Utah
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I'm helping out a friend,trying to save her some money. I am trying to remove the thermostat housing. Is there a way to remove the bottom bolt without dismantling half the upper engine?
    Reply With Quote  
     

  2. #2 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    The bottom of the thermostat housing is slotted so the bolt only needs loosened.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
    Reply With Quote  
     

  3. #3 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    SE Level Member
    Join Date
    Jun 2013
    Location
    West Valley City,Utah
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by dsmuts View Post
    The bottom of the thermostat housing is slotted so the bolt only needs loosened.
    Thanks
    Reply With Quote  
     

  4. #4 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    SE Level Member
    Join Date
    Jun 2013
    Location
    West Valley City,Utah
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by dsmuts View Post
    The bottom of the thermostat housing is slotted so the bolt only needs loosened.
    What a pain! If you change one of these,just suck it up and remove the mass air flow and throttle assembly. That makes it much easier ti get the housing off. I suspect this design came from an engineer that is related to the creator of the side post battery.
    Reply With Quote  
     

  5. #5 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    The 3100 is a bad design all around.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
    Reply With Quote  
     

  6. #6 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    GTX Level Member Steel Armadillo's Avatar
    Join Date
    Aug 2010
    Location
    Orlando, Florida, United States
    Posts
    519
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    The LG8 is a classic example of adapting new technology onto an ancient platform. It's really not that bad, and usually outlasts the tranny it's hooked to.
    The evil LG8 still refuses to die.
    Reply With Quote  
     

  7. #7 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    Banned
    Join Date
    Jan 2013
    Location
    Colorado
    Posts
    1,524
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Take some pics.
    Reply With Quote  
     

  8. #8 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    Quote Originally Posted by camopaint0707 View Post
    Take some pics.
    sounds like he's done.

    Yeah it suxks for sure on that engine.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  9. #9 Re: Changing thermostat on a 2002 Gran Prix 3.1,need info. 
    GrandPrix Junkie jteske88's Avatar
    Join Date
    Mar 2011
    Location
    Yoga city
    Posts
    4,195
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    just did this not that long ago for a friend, i declare once again i hate the 3100 in its entire
    2005 GP GXP-cocor tuned-poly's-lots of sundown
    Reply With Quote  
     

Similar Threads

  1. 2002 GP GT INFO CTR & Fan Blower
    By GP Motorsports in forum General Grand Prix Discussion
    Replies: 4
    Last Post: 06-20-2013, 04:26 AM
  2. 04 Gran Prix Gt
    By slopez in forum Members Rides
    Replies: 10
    Last Post: 04-17-2013, 05:21 PM
  3. New 01 Gran Prix gt
    By prixgt01 in forum Introductions/Noob Questions
    Replies: 1
    Last Post: 05-03-2010, 11:09 AM
  4. need info on 2002 mustang vs 2000 grand prix gt
    By bloxmagic in forum Track Sessions and Kills
    Replies: 13
    Last Post: 07-09-2009, 05:12 PM
  5. Changing Thermostat
    By Connors33 in forum General Tech Discussion
    Replies: 8
    Last Post: 07-06-2009, 11:31 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •