Question about 2000 Buick LeSabre

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2000 buick lesabre custom oil in the coolant

I have a 2000 buick lesabre custom that has oil mixing into the coolant. i recently changed my oil and found the coolant was discolourd, i think it is the oil mixing into the coolant, i have good power the oil is at a regular level. The vehicle starts great and runs even, i was told my head gasket is gone and with 275000 k on it is it worth paying to fix.

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You have a blowin head gasket, Verry costly to have repaired, Plan on $2000 end up.

Posted on Nov 28, 2012

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Posted on Jan 02, 2017

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What can make a 1994 Buick LeSabre power down and stall while turning after oil change and valve cover gasket change engine started grinding when turning after a stop light then stalls.


Engine Stalling Due to Mass Air Flow/Crankshaft Position ...

repairpal.com > Problems > Buick > LeSabre
Buick LeSabre Engine Stalling Due to Mass Air Flow/Crankshaft Position Sensor Failure. This is a verified problem based on 124 reports. Learn more ... 1994 Buick LeSabre90,000Visitor ... The engine just shut down today , its like its not firing.

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3800 burning oil


check your crankcase breather may need cleaned. so you get back pressure.

Dec 05, 2013 | 2000 Buick LeSabre Custom

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I have a 2000 buick lesabre custom the heat doesn't work. The blower works it just doesn't blow out hot air to heat the inside, coolant is fine, not sure where the fuse is to check that, thermostat is...


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Oct 25, 2013 | 2000 Buick LeSabre

1 Answer

My 1994 Buick Lesabre was spewing white smoke from the tail pipe . I took the heads off and had them tested. No cracks -then had them planned down flat and a mechanic rebuilt and replaced using new bolts...


Classic signs of coolant in the oil and since heads were repaired and sealed, it could be a cracked block.
Coolant is mixed in oil and coolant impedes lubrication of engine thus hard to turn over and start.
One last hope is to drain crank case, refill with fresh oil and new filter.
Add Barr's leak "copper" )(looks like liquid copper and costs about $10) sealant to coolant fluid. Run the engine a few times to full warm up, each time observing for tell-tale white smoke from exhaust. Check dipstick level between each cycle.
If problem subsides, go buy a lottery ticket as you're very lucky. If not, a new engine or short block is on the menu.

Good Luck

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Ses light on code po102 and po171 2000 buck lesabre


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May 15, 2010 | 2000 Buick LeSabre

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Mar 08, 2010 | 2000 Buick LeSabre

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2000 Buick LeSabre heater only blows cold


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Nov 29, 2009 | 2000 Buick LeSabre

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MY 1996 Buick Lesabre needs coolant added. what do I add?


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2000 buick lesabre motor fan


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Nov 14, 2008 | 2000 Buick LeSabre

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