Two problems related to carburetor have been reported for the 1999 Buick Park Avenue. The most recently reported issues are listed below.
Intake manifold warped, causing coolant to leak onto engine. Vehicle has been repaired. Consumer states that this happened due to the change in design of the intake manifold, it used to be metal and is now plastic.
Consumer called complaining about having problems with intake manifold. Also stated that the intake manifold cracked which allowed antifreeze to go into the engine. Dealer was contacted and stated that did not understand why it did that and offer 25% off the repairs and consumer refused manufacture also stated that the manufacture also stated that they will also pay another 25%. Ts.