: the contact stated the intake manifold gasket fractured a year ago when the car had 40,000 miles. The fracture in the intake manifold constituted a leak and as a result of the leak the engine ran very inefficiently. The manufacturer was contacted 3 times to provide reimbursement for the repairs paid by the contact. Updated 8/30/2006 -

- Willowick, OH, USA

99 Bonneville, in March of 2004 while traveling at 45 mph the car back fired and the engine killed, it was towed to a shop and coolant was in the engine. The upper manifold was replaced and gaskets at cost of over $ $600. A year later March 2005 the car was making a noise. The Pontiac dealer could not find a problem. On April 2005 the porblem was find, haha, plastic intake was crank, more money. I thing GM sould recall and pay a these defects in there parts. I will fight till the end. I have spent over $1000 on there defect, me many many other people.

- Marksville, LA, USA

In mid may I had a authorized Pontiac dealer replace the intake manifold which had ruptured after a backfire upon initial start of 1999 Pontiac Bonneville with a 3.8 L engine. On June 1, 2004, I was nearly near ended on interstate 80 in council bluffs as I retruned from a trip because vehicle lost power. Took to dealer and they said lower bearing was gone, meaning a new engine. I know there have been numerous consumer complaints. It's more than the cost of a new engine that I'm concerned about. With my near incident that could have resulted in serious injury to me or another party, I think it's time that GM take responsibility for these issues and a recall is gone to cover the issue.

- Omaha, NE, USA

Without warning, my 1999 Pontiac Bonneville, equipped with 3.8 engine, lost power and died. The intake plenum (sitting atop the engine, and providing air and cooling of engine water, ruptured and sent water into the cylinders, and into oil pan. This identical problem occurred at 60000 miles, was repaired, and recently occurred @ 102000 miles, 5/24/04.

- Vernon, TX, USA

The upper plenum developed a hole that allowed coolant to flow into the egr. Was told this was a common problem by the dealer and could have locked up the engine.

- Griffith, IN, USA

Engine check light illuminates on dashboard due to vehicle overheating. Coolant was draining out the reserve into intake valve. Dealer was notified.

- Raymore, MO, USA