1999 Buick Century Engine cooling Problems

“My complaint is on my 1999 Buick Century. December of 2002 I took my car to my mechanic because it was leaking dex-cool coolant. My mechanic informed me it was the intake manifold gasket and it would cost around $440.00. My car only had 59,000 miles on it and was only three years old. This shouldn't have happened. Very poor job of quality in this area by general motors/.”

“Notice coolant is leaking around the intake manifold area on 3.1l v6 engine of my 1999 Buick Century. Local mechanic said it was a common problem with this engine. Dealer is asking approximately $900.00 to repair this problem. This should be a recall on this engine if this is a frequent problem. A good engine should not failed like this in my opinion. This is not a normal wear and tear of the engine, but poor engineering of the engine. Dealer should pay for this problem.”

“I am the owner of a 1999 Buick Century with 78,000 miles. I bought the vehicle used and have no current warranty. Recently, the low coolant dash light began to intermittently illuminate, which prompted me to check thee coolant level and search the underneath of my vehicle. The coolant level was not low; however, there was a small amount of coolant on the ground. I did extensive research on the internet and identified that tens of thousands of GM vehicle owners have had this same problem with the coolant systems in their GM vehicles. …”

“1999 Buick Century began using dex-cool and overheating. Also heater would blow cold indicating coolant was low. Car taken to dealer who said it was a leak in upper and lower intake gaskets. When asked why this happened they said that GM has had bad batches of gaskets and they are having to replace a lot of gaskets, even on 2003 models. I asked why they were charging me $403.66 to repair, since it is happening so much. They said that GM considers this gasket problem a normal wear and tear item just like belts, oil changes, ect! …”

“Second failure of intake manifold gasket on 1999 Buick Century 3.1 m engine. Causes anti freeze to leak from manifold which could cause a fire (as stated in owners manual, warning not to spill anti-freeze on a hot engine when filling radiator as it could cause a fire). First failure occurred at 72,000 miles. Second failure at 115,000 miles.”