Leak

Tiny
MARQUIS MARZETTE
  • MEMBER
  • 2007 BUICK LA CROSSE
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 296,098 MILES
Leaking antifreeze. If I use any kind of sealant will that mess up my engine
Thursday, February 4th, 2016 AT 10:56 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
A lot of them don't work and some will plug the heater core. Try the head gasket type of sealant. But be aware of what may happen best to have system pressure checked to see if it's a small external leak but probably a head/intake gasket
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Thursday, February 4th, 2016 AT 12:07 PM

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