tps

Hello, new here and seeking some help. This is going to be long so that maybe I've done something unknowingly has caused the problem. Here goes, replaced lower and upper intake gaskets in my '97 Lesabre, 3800 Series II. All went well, sort of. Forgot to put the hard plastic tube in the upper...

In late spring/early summer, I parked my 1993 LeSabre for about a month while I was out trucking. When I got back and drove the car again, it was over-revving. In neutral or park, it revs like it would if I had the petal to the floor. Sometimes, it has the exact opposite problem. Sometimes...