I have a 1999 Jeep Grand Cherokee 4 wheel drive - 108,000 miles - 4.7 liters. There is a hissing sound coming from the floor pedals. When I accelerate, the hissing is less. When the pedals are not pressed, the hissing sound is constant. I noticed that when the accelerator is pressed and the hissing sound is less, the oil pressure is in the middle (at 3). While driving, and the hissing sound is lounder and more constant, the oil pressure drops to 1 or just below 1.
What could the problem be?
have the same problem?
Monday, August 20th, 2007 AT 7:19 PM