Well the intake manifold blew up, nearly did me and my home, goodbye lesabre total lose... gm says act of God.
I had same "act of God." @ 52,000 miles my '99 Lesabre was leaking coolant. Luckily took to my trusted mechanic (not GM dealer) who ran pressure test. Showed me where there should have been seam, was a gap & through this gap coolant leaking. Since I happened to have camera with me, I even took pictures! Had I continued to drive, would have blown engine. Mechanic said manufacturer's defect & called GM. Of course they would not agree. Mechanic pointed out (unlike my previous Buicks he had worked on) this one has a PLASTIC upper plenum (i.e. "cheap"). With rental car, cost me $800, but that considerably cheaper than a blown engine would have cost. I just now e-mailed GM with my complaint. We both know what the answer is going to be...
Last week the plastic intake manifold in my 1999 Buick Le Sabre developed a hole that caused coolant to leak into the air chamber causing the car to emit white smoke from the exhaust. The engine light came on. Finally the car would not run. I had it towed to my mechanic. Repair bill was $850. The car has 83,000 miles on it. It was interesting to read the other two notes on your site. I guess I am another unfortunate Buick consumer. I will be contacting the Buick Dealer.
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