Nissan Repair: heater, nissan sentra, power cap

Question
hi reader,i have a 1992 nissan sentra,i got abt 3 major questions to ask u. (1) my heater doesn't work until i put on level 4,but at first wen i put on between 1 and 3 it works,but not anymore. what do u think its the problem. (2) my other question is that whenever i am drivin uphill i give it alot of gas before it pulls to it level. (3) And when can i change my tune-up kit. the car has a mileage of 156,000 and its a 1.6litre. pls i need some answers if u don't mind please and thank you.

Answer
Sammy,

The blower resistor has failed.  There are three positions as well as high.  Each is a resistor and they can blow all at once or one at a time.  Replace the resistor.  It is on the blower case, under the dash, passenger side.  Buy one and you will know what to look for when you replace it.  Two screws holt it on.

The tuneup should be done as that sounds like the problem with performance and power.  Cap, rotor, wires, plugs and a fuel and air filter and reset the timing and your power should be back.