1999 Pontiac Bonneville: engine failure

Filed Apr 13, 2005 · Engine · 46,000 miles · IN

Two intake manifold failures for my 1999 pontiac bonneville, 3.8 engine. First one was in january 2003. Now 15 months later, it has failed again after 35000 miles. The first time, repair costs were just over $800. Now I'm looking at a bill of $866. I have read the tsb and many other online complaints that I'm not the only one with this issue of recurring failures. Some have even reported fires in the engine compartments or complete engine failure.

Filed Aug 30, 2004 · Fuel system · 96,850 miles · PA

Request for reimbursement for damage to engine from a pulled fuel injector.*mr while pulling into a parking lot the vehicle stalled and would not restart. The vehicle was taken to the dealer who determined that a pull fuel injector flooded the injector, pistons, cylinders, crankcase and engine with gasoline which resulted in a blown engine. A 1998 replacement engine was installed from another vehicle. The consumer requested reimbursement because he believed the failure was related to a recall (recall #03054b). The consumer filed a claim for reimbursement but was denied.

Filed Jun 7, 2004 · Engine · 83,000 miles · NE

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.

Filed Nov 24, 2003 · Engine · 58,500 miles · MO

1999 bonneville; 58,000 miles; it had been stalling intermittently for several weeks -- especially during turns. Before I could take it to the dealer, the car loses power on hwy 63; fortunately, I was able to pull over. The mechanic reports engine has locked up because coolant has leaked into the engine due to a known problem by gm of coolant leaking into engine and thus destroying the engine. Total costs to replace the engine, the manifold and damaged the starter amounted to a repair bill of $5300 after a 10% existing customer discount plus state taxes. I checked the odi databases for '99 bonneville's and almost a 1/3 of the 111 complaints relate to the same problems I had before my car engine was damaged and similar problems of coolant leaks into the engine. Does there have to be a injury before the federal safety agency will act? Why did the recent recall for the 2000 and newer models not cover the 1999's when gm has known of this issue of coolant leaking into the engine since the 1995/96 model year? Please see my website for the analysis of the 1999 complaints http://www.missouri.edu/~ryh352/2003/bonne.htm I, of course, want my $5,300 returned from gm. I also think it only fair that the recall extend to 1998 and 1999 bonneville owners with less then 100,000 miles on their car and gm repair those cars free.

Filed Jan 23, 2003 · Engine · 70,000 miles · IL · fire

While running, vehicle experienced a back fire causing the manifold to crack which caused a fire. Dealer notified. Ts when backfire occurred engine died and there was smoke from under the hood. Consumer was able to control the fire with snow. *tt referenced in ea02-030

Filed Jan 7, 2003 · Engine · 99,000 miles · IL

After consumer started their vehicle, the engine blew up, without warning. The dealership indicated that the cause was a bad gas regulator valve. Please provide more details. Ts

Filed Mar 4, 2002 · Fuel system · AL

Composite intake manifolds on pontiac, buick, oldsmobile, chevrolet with 3.8 l engines are failing and dumping coolant into engine causing repairs to cost from $400 to engine replacement. Gm is aware of this problem ( see gm service bulletin 01-06-01-007)

Filed Jul 13, 2001 · Electrical, Engine · FL

The car started stalling and I replaced the plugs, ignition coils (3ea), fuel pressure regulator, took to dealer and their is a seal in the intake that have had problems and it leaked water into the cylinders a little at a time and then let go. They knew they had problems with it, they said so. Est cost $1000.00, then they will see if the engine is still good. So it could need a new engine.