I'd like to add to this solution. Suffered the same problem with a 2000 Park Avenue after jumping the battery and creating a voltage surge that spun the needle clockwise to the peg. Read on a few other websites that a very powerful (40-50 lbs.) Was required. Tried a 20 lb. Magnet and got nowhere. Then, one day fiddling with a little telescopic magnetic pickup tool, I found I could move the needle - by aiming at the base of the needle, not the tip - but not enough to swing the needle around.
Went to Home Depot and bought a package of 8 round, quarter sized magnets (about 3 bucks) that collectivelly couldn't have pulled more than about 3 lbs. Stacked them, shut off the key, aimed at the base of the needle, and it swung around easily and quickly to the full mark. Removed the magnet, turned on the key, and the gauge went to the proper level.
Aim for the base of the needle, not the tip. Careful not to scratch the plastic.
Thursday, January 1st, 2009 AT 11:13 AM