Question about 2011 Buick Lucerne

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My 2011 Lucerne 6 cylinder car seems to be leaking antifreeze and when starting the car in 65 degree weather the windshield fogs. Warranty replaced the heater core 3 days ago but it still leaks and even worse than before it was replaced. Is there something else causing the problem?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 98 Answers

SOURCE: 1986 buick century ltd interior front passenger water leak

Tricky, tricky, tricky...Well, if the heater core and all connecting hoses are not leaking, the only other place that I could see water coming from would be a leaky windshield. Have you looked up around the windshield to see if there is any moisture around the trim? If the heater core and hoses aren't leaking, and the windshield isn't leaking either, the only other possibility that I can think of would be that perhaps your passenger side door has bad weatherstripping/seal. There just isn't anywhere else for it to be coming in. It kind of bites that you had to replace the heater core if it does turn out to be a leaky window or door seal, but at least you can comfort yourself in thinking that you have a 1986 Buick that eventually would have needed a new heater core, probably sooner rather than later, and now you wont have to worry about it for as long as you'll own that car. Just be glad that you were able to get it replaced at a far more convenient time than having to get stranded somewhere or a time when you didn't have the funds to do so. Hope this helps. Try to stay dry and have a great day!

Posted on Nov 23, 2008

Fixe_You
  • 1800 Answers

SOURCE: I HAD AN OIL LEAK

check ur model and statt from here

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plz rate

Posted on Feb 27, 2009

emissionwiz
  • 75122 Answers

SOURCE: Anti freeze smell when car is shut down

do u smell coolant in the car when te doors are closed? if not it is not the heater core, have you had the system pressure tested at a shop? If I had to guess the 2 area's that would cause this are loose radiator hose clamps that just seep, not enough to get to the ground, but enough to smell the coolant, the other a slight leak at the water pump weep hole on the underside of the water pump, this can also be a seep and not reach the ground. Try adding a can of Alumiseal radiator and block sealer, comes in a little aluminum colored tube, about $3 US

Posted on Mar 05, 2009

  • 181 Answers

SOURCE: Antifeeze leak on my 2000 VW Beetle Turbo

Most likely a leaky gasket. The water pump is a likely candidate, but also could be from a bad radiator hose/thermostat connection. Would suggest washing down the engine with a hose connected to the hot water. While the engine is cold use the hose to wash off the oil & grease deposits and old antifreeze. Allow the engine to dry without running the car. Once dry start the car and be prepared to look for the first sign of a leak. Sounds like a dealer issue since there is very little work clearence between the front of the engine and the car body. Barely enough room to be able to change the serpentine belt.

Posted on Oct 05, 2009

  • 238 Answers

SOURCE: How serious is an upper plenum leak (found upper

The upper intake has a egr port right next to a coolant port, the egr is exhaust gas that is recyled into the intake for emission control. On a long trip the exhaust burns a hole between the two ports causing your problem. Pretty common on the 3.8. My suggestion is to stop driving it until you have it repaired, reason being is the coolant can travel down the intake and fill up the cylinders. If that happens, worst case you can damage a rod, but you will be stranded.

Posted on Apr 05, 2010

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