What engine do you have? Makes a difference between the 2.5 4 or the 4.0 6. This is my 2nd Cherokee, the first a 89, and now a 2000. and both are averaging a good 18-20 mpg. That also assumes that you drive responsible and does not have it lifted. My 05 TJ is lifted with 33's under it, and I get roughly 13 MPG. so there's the range.
The ECU on your Cherokee should be located on the inner fender under your hood on the driver side.
go to www.4wheelparts.com. They should be able to help you out.
5000 lbs
It is inside of the oil pump.
I recommend you have the A/T fluid changed every 36,000 miles.
Regular unleaded is the recommended fuel for a 1999 Jeep Grand Cherokee.
www.autozone.com Click repairs, component location.
Most auto parts stores have the repair mauals. That's where I got minel
under grill between bonnet [hood] and windscreen you need to remove grill to get to it
Listed in your owner's manual and on the driver's door post. Original Equipment Size: 225/75-15
There is no such part on a 1999 Jeep Cherokee.
The Kelly Blue Book value of the 1999 Jeep Grand Cherokee is subjective. The value depends on the mileage and the condition of the car. However, it ranges between $2,000 and $3,500.