Expert: Skip Bollinger - 10/12/2006

Question
I recently replaced spark plugs and wires on my 95 Buick Park Avenue, also put in a new battery and then they told me the supercharger was going out.  I replaced that and drove it 3,000 miles to Texas and back this week.  When you accelerate when getting on the expressway the car hesitates.  It also does it occassionally when going down the highway, it seems to be worse in the rain.  This just started.  It has a 3.8 liter V6 engine, supercharged.  The car use to be really peppy.  Someone told me it might be the coil.  Any ideas?

Answer
Denise,
  I will tell you up front that I'm an OLD PARTS SPECIALIST. I have been on a parts counter for 32 years. I am NOT a Tech but I will give you my 2 cents worth.
  My first question to you is: has the "Check Engine" light come on?? IF it has, there are codes set in the computer that may give you some insight on what may be wrong. IF NOT, we are flying by the seat of the pants.
  Now PLEASE remeber I'm a Parts Specialist, NOT A TECH but if it seems to be weather related, I would suspect the Mass Air Flow Sensor or the Air Intake Charge Temperature  Sensor. Neither one are cheap. I would suggest, if you don't have any diagnostic tools, just take it to a mechanic.. a QUALIFIED MECHANIC. I know money is a concern but if you get a "discount" mechanic for $50.00 an hour and it takes him 5 hours to figure it out ($250.00), well compare that to a "knowlegdelable" mechanic that charges $65.00 to figure out and it takes him 3 hours.... $195.00 vs $250.00.
  I don't think this a problem that can be answered on line. It is too complicated. This it why I ask you to look for a qualified repair tech in your neighborhood. I'm soo sorry not to be able to give you a better answer. Good luck,
Skip
CarPartMan@aol.com