Engine Performance problem
1992 Buick Park Avenue 6 cyl Front Wheel Drive Automatic 190000 miles
Hello -- My Buick Park Avenue with a 3.8 engine has sat idle for a year. Before I put it up it was getting 24-27 mpg on the highway; now it is barely making 20. I replaced the crank sensor and fuel pump, have changed plugs and air filter, checked exhaust for leaks before the muffler, still no change. Car starts every time, reasonably peppy and no trouble cruising at freeway speed, but still poor mileage. I drive expressways a good deal and have always liked the car for running comparatively cheaply despite its size. Any suggestions?
have the same problem?
Thursday, March 6th, 2008 AT 3:43 PM