Manifold/header/muffler/tail Pipe Problems of Buick Century - part 2

Intake manifold coolant leak caused engine failure. Intakes manifold gasket was replaced. Gasket now has a new part number to correct the defect on the original component, gm claim #1-180791866. Gm has recalled for coolant leak, but it was on a different model. Also, lower intake manifold gasket was leaking. Mechanic replaced the lower gasket.

See all problems of the 1999 Buick Century 🔎.

The vehicle experienced premature failure of the intake manifold.

A mixture of water and anti freeze seeped into the oil. When this occurred the fluids mixed with the oil, and went through the intake manifold gasket. This knocked the crankshaft and destroyed the engine. The engine was replaced, but the failure recurred 8 months later.

See all problems of the 1997 Buick Century 🔎.

The gasket has to be replaced. Anti-freeze leaked from the top, and dripped down onto the engine. However, took vehicle to dealer several times. The leak has not been found.

See all problems of the 1998 Buick Century 🔎.

Dealer replaced intake manifold gasket. Consumer stated it was premature to replace the manifold. When the consumers first purchased the used vehicle, dex-cool needed to be added every 2-3,000 miles. After a year, the consumer was adding dex-cool every 2 days. Consumer then noticed pink gunk in the dex-cool. Vehicle was taken to the dealer and they couldn't determine why this happened and where it came from. They were informed the intake manifold needed to be replaced and the vehicle needed a complete flush. When the consumer received the vehicle from the dealer, they noticed a lot of pink gunk still in the reserve jug.

The vehicle over heated while driving. The vehicle was taken tot he dealer who stated that the intake manifold broke and caused oil to leak into the cooling system.

See all problems of the 2000 Buick Century 🔎.

I own a 1998 Buick Century custom that I purchased new. My husband and I take good care of our cars; always do all the recommended maintenance. In February, our intake manifold gasket was replaced due to a leak and the car only had 76,000 miles on it. This cost us over $900. My husband has searched the web and found hundreds, if not thousands of similar complaints from other Buick and gm product owners. Many are forming groups and filing petitions and class action law suits. My grandfather and uncle were car repairmen in the '70's. Even back then, it was unheard of to have intake manifold gaskets replaced. This is clearly a defect that gm needs to own up to. Please pursue gm through whatever channels you have to make them pay for this problem and fix it. I have heard of a few lucky folks who are getting reimbursed, it should be for all of us.

After noticing a few drops of dexcool coolant on the garage floor, I checked the reservoir. It was empty. I checked for leaky hoses or clamps, then noticed that around some gasket I could see where coolant was obviously oozing and some had pooled in a recess in the engine mold. Anyway, I refilled the reservoir with dexcool and took the car to a local repair shop before doing any damage. The repair bill came to over $900. The car is only 5 years old and it needs a new intake manifold gasket, how absurd. After surfing the web, I find that others have had fires and blown engines from the same problem. We were lucky, but my wife and daughter travel the local highways alot, what if they ran out of coolant while driving and the engine siezed, possibly causing an accident or at least stranding them. (3. 1l v6).

Loosing coolant. No external leaks can be found. From the information I have read, we probably have an intake manifold gasket problem.

Intake manifold gasket (lower) failure.

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/.

There seems to be a large number of lower intake manifold gasket failures (defects) on general motors 3. 1l, 6 cylinder gasoline engines manufactured between approx 1995 and 2004 (possibly 3. 4l as well per internet wistleblowing website). There are no gm recalls (gm bulletins # 030601010 (March 2003), # 020601014 (01 April 2002), and possibly # vss20030024 (04 March 2003). From the whistleblower internet website, many people including me are on the second very expensive repair due to the failure/design defect of this gasket/design (gm refusing to pay). In my case, at 50k miles there was an external purge of coolant resulting in steam release in the engine compartment. At 91k miles I am now experiencing an external oil leak at that gasket, with possible internal coolant leak per gm dealers analysis (on my receipt). The failure of the gasket seems to permit the mix of coolant and oil inside the engine or an oil leak outside the engine. The mix could seize the engine (dilutes engine oil lubrication) or cause severe and sudden engine and cooling system damage. I did a google internet search on "intake manifold gasket problems" and was shocked at what I found and how many people were on their second round of very expensive repairs for the same gasket failure/defect. "all" gm dealers are well aware of this and are currently charging $800 to $1,100 per gasket/bolt replacement. There was mention on the internet that gm might be seeking legal action against the manufacturer of their special gm coolant (required for gm cars), but I cannot verify that. The internet sites mentioned that the gm coolant might be responsible for the gaskets failing from the inside of the engine (coolant dissolves the gasket). I saw one mention of possible water pump gasket failures due to the coolant. I also "heard" that these gaskets might be made of plastic and cracking, which leads to failure.

Oil is leaking on the driver's side of the engine towards the firewall, cause unknown. Dealer replaced the leaking lower intake manifold gasket, and resealed oil pump which has not remedied the problem. Please give any further details.

Fax fm william a. Araneo (NJ) request reimbursement for repairs related to a recall of the intake manifold on his Buick automobile.

The intake gasket leaked antifreeze. Dealership replaced the gasket, but problem recurred within 23,000 miles. GMC consumer representative informed the consumer of a recall on this issue, but consumer's vehicle was not included in the recall due to VIN. Recall not found in artemis.