if the contact in the horn button is bent in or you have a loose wire.
Bad sending unit in tank.
Throttle Position Sensor (TPS) or Mass Air Meter
Could be steering rack is worn and needs replacement
Battery, starter, fuel pump, ignition, computer,................
No they won't, but I wish they would!
Depending on which circuit Could be defective component Vibration causing a wire to short to ground
My 1999 Grand Cherokee just started this today. My first thought is that the fan relay is stuck in the "on" position.
check the drive axles they could be bad
You may have a short in your cruise control switch.
You either have Faulty outlets, in which case you would need to replace and refuse, or your fuses are burnt, and need to be replaced.
Why wouldn't it? There is NO difference between a 1999 and a 2000, as of right this second i have a 1999 Pontiac grand am with a 3.4 liter (what your looking at right now) and built it from ground up. I know plenty about cars.
1999 would either be a 4.0L inline 6 or a 4.7L V8