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My 1989 buick lesabre won't start! After having

My 1989 buick lesabre won't start! After having problems with leaking antifreeze and overheating yesterday it finally stalled out and started pouring oil and antifreeze from the overflow. Someone please help!! Its a great car, i hope it is fixable

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Not anymore it isn't a nice car
Sounds like oil & coolant come out
into the coolant recovery bottle
You lost a head gasket or thermostat
stuck closed
I think it's time after 24 years to send it
to car heaven & take the tax write off

Posted on Jul 28, 2013

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2000 buick lesabre stall after starting or after running for 30 minutes

I have a 1996 Lesabre. I had a similar problem that slowly got worse. I brought it to two different mechanics that did diagnostic checks and could only "suggest" what to replace to fix the problem. Their problem was that it wouldnt stall out while they had the mv. After replacing a bunch of sensors and the fuel pump/ filter, I solved the problem by replacing the Crank Sensor. Its located behind the lower crank pulley on the 3.8 lt motor. Hope this helps!

Posted on Oct 29, 2008

shop242
  • 214 Answers

SOURCE: '97 Buick Century Overheating Problem

Yes Ma'am, Have a pressure check done on the coolant system and I'll be willing to bet you have a blown lower intake gasket.. Pls let me know..

Posted on Mar 11, 2009

  • 91 Answers

SOURCE: 92 Buick LeSabre overheating.

make sure the cooling fans are working and most vehicles will turn on the fans when you first start and A/c is in max mode

Posted on Apr 24, 2009

  • 1 Answer

SOURCE: 93 Buick Lesabre custom 3.8 L with engine knock and stalling

if you can turn the serpentine belt either direction by hand at all you probably need a harmonic balancer..or just look in the passenger wheelwell at the h/balencer and see if the rubber is cracked all the way around.. just fixed one with that issue

Posted on Jun 05, 2009

  • 2 Answers

SOURCE: I have a 1998 Buick Lesabre that keeps losing antifreeze.

Buick 3.8's are notorious for intake manifold leaks. If you are sure you are not leaking externally (look under the alternator and on the top of the transmission), it could be an intake manifold leak. I've replaced mine...I didn't think it was too hard a job for an amateur.
It could also be a head gasket, but the intake leaks are much more common.

Posted on Dec 25, 2009

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I have a 1998 Buick Lesabre that keeps losing antifreeze.


Buick 3.8's are notorious for intake manifold leaks. If you are sure you are not leaking externally (look under the alternator and on the top of the transmission), it could be an intake manifold leak. I've replaced mine...I didn't think it was too hard a job for an amateur.
It could also be a head gasket, but the intake leaks are much more common.

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1 Answer

Antifreeze


the color of the antifreeze will have zero effect on the problem you are having.  I suspect the replacement engine has a leaking manifold gasket or a blown head gasket.  Why would you buy an engine with that many miles on it?

Mar 28, 2009 | 1998 Buick LeSabre

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