Thread: Heater Core or Not?

Results 1 to 13 of 13
  1. #1 Heater Core or Not? 
    SE Level Member
    Join Date
    Jan 2016
    Location
    USA
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Good Morning! Yesterday I got into my Pontiac Grand Prix GT 2004 3.8 Series 3 Engine after letting it warm up and it was leaking water on the passenger side floorboard. My heater is producing warm air no problem, but my windows are steaming up and water all over the floor. Is this my heater core or could there be another problem? If I can avoid changing the heater core that would be great but its probably not my luck.
    Reply With Quote  
     

  2. #2 Re: Heater Core or Not? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    need to see if its coolant, if it s coolant your changing the core.

    you can bypass the core till you get a new one.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  3. #3 Re: Heater Core or Not? 
    Donating Users GoldGTP's Avatar
    Join Date
    Jan 2011
    Location
    Sacramento, CA
    Posts
    151
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I had a similar issue after I had the windshield replaced...Water on passenger side...

    Appears they forgot to replace the seal correctly and all I had to do was push it in place, iirc...
    Reply With Quote  
     

  4. #4 Re: Heater Core or Not? 
    GXP Level Member
    Join Date
    Mar 2015
    Location
    Tomball
    Posts
    2,633
    Thanks (Received)
    0
    Likes (Received)
    3
    Dislikes (Received)
    0
    If you park on an incline, or if it's been raining recently and it's not coolant you may just have a plugged drain. I had that happen earlier this year and had to unplug it.

    Jeff
    An engine is an engine no matter the size.... I think Dr. Seuss said that... or maybe it was Big Weld....
    Reply With Quote  
     

  5. #5 Re: Heater Core or Not? 
    SE Level Member jaydubb71's Avatar
    Join Date
    Apr 2013
    Location
    Waldorf MD
    Posts
    110
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Smell it. You will know if its coolant or not. Speaking of a plugged drian, I need to clean mine...
    1998 GTP Coupe: Self-tuned with HPTuners, 3.4, FWI w/ 12 inch K&N, Autolite 103's, hot-wired FP, Caspers fan override, 180 t-stat, Speed Daddy headers, SLP exhaust w/ GTX tips, 12 inch brakes (Riviera/Impala), 6000K HID's, solid rubber engine and trans mounts, poly dogbone inserts (SOLD 3/2020!!! )
    Reply With Quote  
     

  6. #6 Re: Heater Core or Not? 
    SE Level Member
    Join Date
    Jan 2016
    Location
    USA
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by cmayle0724 View Post
    Good Morning! Yesterday I got into my Pontiac Grand Prix GT 2004 3.8 Series 3 Engine after letting it warm up and it was leaking water on the passenger side floorboard. My heater is producing warm air no problem, but my windows are steaming up and water all over the floor. Is this my heater core or could there be another problem? If I can avoid changing the heater core that would be great but its probably not my luck.

    Good Morning again! Yes it is coolant, and the passenger side is soaking wet. Windows are all steamed up! Looks like Saturday I'm changing the core! Not looking forward to taking the whole dash and console apart! Thanks for everyone's help!!
    Reply With Quote  
     

  7. #7 Re: Heater Core or Not? 
    GXP Level Member
    Join Date
    Mar 2015
    Location
    Tomball
    Posts
    2,633
    Thanks (Received)
    0
    Likes (Received)
    3
    Dislikes (Received)
    0
    So I guess you are saying it smells and is sticky like coolant as well?
    An engine is an engine no matter the size.... I think Dr. Seuss said that... or maybe it was Big Weld....
    Reply With Quote  
     

  8. #8 Re: Heater Core or Not? 
    Donating Users GoldGTP's Avatar
    Join Date
    Jan 2011
    Location
    Sacramento, CA
    Posts
    151
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    This guy did it without pulling the dash...

    https://www.youtube.com/watch?v=VuQ078KHX0U

    Hope this helps...
    Reply With Quote  
     

  9. #9 Re: Heater Core or Not? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    dash stays in. its just a lot of back and forth side to side removing little gold screws.

    console has to come, seats can come out or not. depends on how much room you need

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  10. #10 Re: Heater Core or Not? 
    Donating Users Bronco Boy's Avatar
    Join Date
    Jul 2010
    Location
    Coquitlam,BC,Canada
    Posts
    3,800
    Thanks (Received)
    5
    Likes (Received)
    23
    Dislikes (Received)
    0
    Your heater core will leak coolant. If you have water on the floor, it is coming from outside the vehicle. Unless you have water in your cooling system.
    Chris B
    2009 CX-9
    ** SOLD ** 2002 GT
    Reply With Quote  
     

  11. #11 Re: Heater Core or Not? 
    SE Level Member
    Join Date
    Jan 2016
    Location
    USA
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Good Morning!
    Yes it is coolant! It's sticky and smells like coolant. No heat this morning! Froze on my way to work! I will watch the You Tube video and hopefully there is a easier way then pulling the dash. I have to wait till Friday when I get paid before I can buy the new heater core. All I can say at this point is I hope it warms up! Again thank everyone for their help!!!
    Reply With Quote  
     

  12. #12 Re: Heater Core or Not? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    make sure you keep the rad full. take the hoses off the fire wall and loop the alt bracket coolant ports. this whay it stops leaking, and the coolant stays full.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  13. #13 Re: Heater Core or Not? 
    SE Level Member
    Join Date
    Jan 2016
    Location
    USA
    Posts
    4
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Thank all of you! I will be changing this Saturday morning and will let you all know what happens. Christa
    Reply With Quote  
     

Similar Threads

  1. heater core
    By dlk in forum General Grand Prix Discussion
    Replies: 2
    Last Post: 04-22-2014, 06:29 PM
  2. need help heater core
    By PDUBC in forum Introductions/Noob Questions
    Replies: 2
    Last Post: 05-17-2013, 06:05 AM
  3. Heater core
    By jase711 in forum General Tech Discussion
    Replies: 1
    Last Post: 02-18-2013, 01:29 PM
  4. heater core
    By jase711 in forum Introductions/Noob Questions
    Replies: 0
    Last Post: 02-18-2013, 12:22 PM
  5. Heater Core?
    By GrandPrixgtp2000 in forum General Tech Discussion
    Replies: 8
    Last Post: 06-21-2012, 04:33 PM
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
  •