DaPurpleRT Posted October 31, 2010 Report Share Posted October 31, 2010 So my parents described that their 00 3.8L Regal has been making sounds like water burbling when starting/shutting the car down. It did it last night and it could not produce warm air. What's going out? Condenser? Heater core? TIA, -Ryan Quote Link to comment Share on other sites More sharing options...
BXX Posted October 31, 2010 Report Share Posted October 31, 2010 It has an air pocket in the coolant system that has migrated to the heater core Odds are, its low on coolant and slowly leaking it out of the intake gaskets. Quote Link to comment Share on other sites More sharing options...
KingVee Posted October 31, 2010 Report Share Posted October 31, 2010 As Bob says, there's air in the cooling system and a lack of coolant. 3800's are known for cheap lower intake manifold gaskets, poorly designed upper intake manifold plenums (made of PLASTIC), and easily breaking plastic coolant elbows that connect the lower to the upper (or something like that, I'm not sure what the elbows do). Mine does the same thing when it's up to running temperature (has stopped doing it recently though), I hear some farts and bubbling coming from under the dash (heater system) as my gaskets are slowly beginning to leak outside of the motor. What you can do for an IMMEDIATE but temporary fix is have the coolant filled, but you might want to have all of the stuff listed above checked/replaced before it goes out of hand. If coolant happens to start leaking into the motor, it's done for. Quote Link to comment Share on other sites More sharing options...
AL Posted October 31, 2010 Report Share Posted October 31, 2010 I would have a coolant and heater core flush done Quote Link to comment Share on other sites More sharing options...
KingVee Posted October 31, 2010 Report Share Posted October 31, 2010 I would have a coolant and heater core flush done That too, considering once air gets into a Dex-Cool system, it starts to mud. Quote Link to comment Share on other sites More sharing options...
AL Posted October 31, 2010 Report Share Posted October 31, 2010 Yep and when the mud clogs the heater core it will make the water rushing sound as the water is trying to squeeze by all the mud Quote Link to comment Share on other sites More sharing options...
KingVee Posted November 1, 2010 Report Share Posted November 1, 2010 Wasn't sure if I still had the video. Took it like a week or two ago. Heh, what ya gonna do... [video=youtube;Tx_3WJhh3G8]http://www.youtube.com/watch?v=Tx_3WJhh3G8 Quote Link to comment Share on other sites More sharing options...
Andrew Posted November 1, 2010 Report Share Posted November 1, 2010 My GTP has been making the same noise, though not as noticeable. Not sure that its coolant related since the sound doesnt increase with revs. My level is fine, and heat works, but i am due for a flush. Quote Link to comment Share on other sites More sharing options...
KingVee Posted November 1, 2010 Report Share Posted November 1, 2010 My level hasn't dropped very much and I do have heat, yes. The sound isn't very noticeable, the camera does pick it up quite well. The heater wasn't even on in this video. It goes away if I turn it on. Quote Link to comment Share on other sites More sharing options...
AL Posted November 2, 2010 Report Share Posted November 2, 2010 Video? Quote Link to comment Share on other sites More sharing options...
KingVee Posted November 2, 2010 Report Share Posted November 2, 2010 http://www.youtube.com/watch?v=Tx_3WJhh3G8 Quote Link to comment Share on other sites More sharing options...
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