by haugent on Jun 24, 2009 Vehicle: 1998 Pontiac Bonneville SSE 4dr Sedan
Bought this used, with clean CarFax and low miles. Put few miles on per year, and keep up with routine maintenance. Thank God I got an extended warranty. Thousands in repairs of all sorts in the 4 year warranty period, including a replaced engine - which lasted 5500 miles before the 3rd engine. Add'l items not covered by warranty, like sunroof, gauges, fuel lines, starter, and on. Rusting in odd locations - under fuel fill, window pillar on driver's door. HUD is cool, but invisible on sunny days. Power is inadequate - couldn't outrun anything but a heavy truck.
by VincentModrak on Mar 17, 2008 Vehicle: 1998 Pontiac Bonneville SSE 4dr Sedan
I bought this car a year ago off my Dad and ever since it has been a nightmare. Shutting off randomly at first. Then the water pump blew out in October, $300. One month later my Upper Intake Manifold cracked for a second time in 3 years flooding the engine with coolant causing my starter to blow as well when trying to restart. The Upper Intake Manifolds on these cars are made of cheap plastic. They will crack on your car around 100k to 130k. Its a 1200 dollar repair bill as well. After happily owning a 95 Grand Prix, 94 Trans Am and an 02 Grand Am I was very disappointed by the Bonneville..
by Nomorbonnevilles on May 8, 2002 Vehicle: 1998 Pontiac Bonneville SSE 4dr Sedan
I purchase my Bonneville SSE new in
1998. At $56,000 the plastic intake
manifold cracked, allowing fluid into
the cylinders which locked down the
engine. Now at 102,000 miles the same
thing. No help from GM either time. I
am out over $2000 for this poor
engineering design. The more I look
into it, this is a very common problem
with this engine.
From day one, the car has had a
vibration. I replaced the Goodyear
tires with Michelin and the dealer
replaced 2 more sets until he found
tires that were close enough to perfect
to reduce the vibration. Is the
suspension so bad I have to search the
country for 4 perfect tires so the
vehicle doesn't vibrate?
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