Ive been worried about heat coming from the engine bay inside the cab. When driving on the interstate the engine temp is at 210 most the time. Hot air is blowing through the defroster vents, and my center console where the radio is and all the electrical components get very very hot and i have no clue why. The air conditioning is off or on, it doesnt matter everything still gets hot, i have to keep a window down to not burn up, any help guys?

 

help

 

Does it blow hot air from the vents?? If so it sound like a vacume leak in your heater control. Check the vac line going to the heater valve and the line to the canister in the front bumper.

 

sound like vent door by pass feet open allowing outside air to get in

 

Don't think '99 XJs have a heater valve.

 

look for this valve and take off the vacuum line see if you can move the lever the other way the check ventsits by the firewall heater hose area

 

Don't think '99 XJs have that valve.

 

they have to have something like this its hard to discuss the prob with out the poster of the prob on here you know