Tns relay on my 98 kia sephia is making this nosie

Hi Tony My name is Tim Dorton. Wow, this is a good one. Some say it controls the side and tail lamps, sounds like something the flasher would do. Others say it's for daytime running lights. Most cars have a turn signal flasher, even kia. Are the turn signals working? If so pull the tns relay and see if they stop.

If its a sealed relay, tap on it, or you may need to unplug and replace it.

Make sure it's in park, or neutral if manual tranny. Make sure battery connections are tight and clean. Check starter relay and check ignition switch electrical portion to ensure it's getting current from the battery to the relay.

check on this site - general location regardless of the make is on "other end" of the engine, parts as well on this site:
http://repairpal.com/camshaft-sensor

some parts here:
http://www.redlinemotive.com/store/replacement/model.asp?ct=A&make=KI&year=1998

hope this will help you - do not forget to vote...

I already answered this. Smart a** answer is PO 1800 means "Please Offer 1800" (I own a 2012 Kia Optima and love it. )

Go to a major repair shop like Goodyear Auto Center, Merchants Auto, NTB, Firestone Service Center, etc and they will be HAPPtY to tell you what the code means. However, given the age and horrible repair history and owner satisfaction, I would sell it and take the for $1000 I get. Then put that down on a newer, more reliable car. Or, find a $2000 used car and pay cash for a better car, like a 98-2001 Camry or Accord.

Check and replace if it is not working properly all mechanical relays will make noise when they click once to engage current to the load side of the circuit.

what is tns

It sounds like valve train noise. The best thing to do is have the dealer listen to it and see what the preliminary diagnosis is of the nosie. Is the engine full of oil and it has been changed on a regular basis or at least every 5,000 miles.

What happens when you try to jump start it? If it starts by jump starting then the problem is in your charging system (alternator or battery).

You should also check the fuses and make sure the starter fuse is good.

in the gas tank