i had the same problem with my Jeep. it ended up being the switch, but there are many other problems that can cause your fog lights to not operate properly. check first to make sure they are not burnt out. then i'd check all your connectors to make sure there is no corrosion and that they are making good contact. next step is to put a meter on it and see if you are getting power to the lights. if not you've obviously got an open or a short in your wiring somewhere. check for a broken wire, faulty switch, etc.
The fuel pump is in the gas tank on a 1999 jeep Cherokee sport.
20 gallon
Not with out major modifications.
It doesn't have EGR
location of relay for heated o2 sensor 1999 jeep Cherokee sport
It is on the bottom of the washer bottle.
yes.
P225/75r15 102s
It is either a Cherokee, Grand Cherokee, or Wrangler. The model codes are xj, wj, and tj.
Dealer.
Yes, the 1997 to 2001 Cherokees are nearly identical.
The grand Cherokee is a body style, sport is a trim package that is used on all jeep models(wrangler, Cherokee, grand Cherokee, patriot, ...)