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Originally Posted by lesabre
I have a 1997 buick lesabre with the 3.8 v6 (k) engine. It ran hot the other day and I could see white smoke on acceleration, but not everytime I accelerated. The oil does not have any water in it. But Water is getting on top of my pistions. I removed the plastic cover (throttle body?) from off the top of the intake. The top of the intake is full of water. Is this normal? Could it be head gaskets or intake gaskets? I am puzzled as to why water would be in this plastic cover. The acceleration linkage and air cleaner attaches to this cover. Any help you guys can give will be appreciated.
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MY WIFE'S CAR IS A 1999 BUICK LESABRE AND WAS USING COOLANT UP AND WE SAW NO LEAKS. I SUSPECTED AND INTERNAL LEAK. I TOOK IT IN AND THE UPPER PLENUM (AIR INTAKE MANIFOLD IS CRACKED BY THE EGR. THIS IS USUALLY A PROBLEM FOR THE 3.1 V6 ENGINES. OURS IS THE 3.8. GM SAID NO RECALLS PER DEALER LOOK-UP ON ITS SERVER TO GM. IT IS A PIECE OF PLASTIC! I WAS SHOCKED TO SEE A PLASTIC INTAKE MANIFOLD WELL THEY CALL IT UPPER PLENUM. IT HAS A LOWER FOR A HEAT SHIELD. WELL GOOD BAIT AND SWITCH ON A CAR THAT IS NOW CHEAPENED IN MY MIND. $1200.00 APPROX TO REPLACE BOTH UPPER AND LOWER, NEW PLATNUM PLUGS, SQIURT OIL IN CYLINDERS, A SHOT OF ETHER IN EACH, AND NEW OIL AND OIL FILTER.
THEN GET IT RUNNING AND CHECK COMPRESSION TO SEE IF CYLINDARS WERE RUINED BY GETTING WASHED DOWN.
GOOD LUCK AND PUT PRESSURE ON GM FOR A RECALL!!!