Crankshaft position sensor where is it located?

On Sat as I was driving my van just stopped running while at a stop light. I started right back up and drove about a block to the next light where it again died. However this time it took a few tries and minutes before it would restart and this time the engine light remained on. So I drove right to my local kia dealership and they ran a code check and it showed a code which was crank shaft sensor. I was told by the dealership that a van with 140,000 miles and over 9 years old can have this issue.

1. Is this true, is that kind of miles and age about when this sensor would begin to fail?
2. What does this sensor do and why does the engine shut off?

They told me that to repair it was a bit expensive due to it's location. They asked me if I have had my timing belt replaced. I told them I have an appointment with then in 2 weeks to get that belt changed. They suggested that if possible don't drive the van for the next two weeks and have all the work done then as it would save me money. They said to replace both timing belt and serpentine belt and the Crank Shaft sensor would run me about $700.

3. So does that seem like a fair price for all the labor and parts involved to do such work?

My car won't start they tell me I need a crank Shaft sensor. I have a 2003 Kia Sodona EX. Where is the crank Shaft sensor located and could you tell me how to replace it?

I just had mine replaced and you need to have a professional do it. Also if you have not had your timing belt replaced lately go ahead and have that done as it's all in the same area, you are going to just pay a bit more for the belts.

Where is the crank shaft censor located. How difficult is it to replace? It costs around $80.00 but how much to install? My van keeps shutting off while driving. It won't turn back on for a good time (less than 1 hour)

Replaced the crankshaft position sensor. Nnow the engine runs hot by about 500 to 1000 rpm and wont shift when driving. Sounds rough. Is there an adjustment for the sensor or is there something else im missing?

Thanx

Car died at a light. Code read as po337-replace crankshaft sensor. Replaced sensor and reset check engine light. Now there are no codes. Main problem now is that it wont shift out of first gear.

Make is "actron"
model is "cp9135"
serial is "243933"
seems to run a little hot at idle. Usually runs at 1100. Now runs at about 2000. Drives ok til about the time it should shift then either wont shift or seems to shift and looses power. Will not shift into drive at all.

?

I have a code p0337 crankshaft sensor how do you replace?

With only 39k miles, I would venture to assume it may be covered under factory warranty. But if not, it's about a 3 hour job. Remove the serpentine belt, balancer pulley, and necessary accesories, remove the timing cover, the crank sensor is just above the crank gear for the timing belt. Always wise to replace the belt while you're in there if there's any signs of abnormal wear. If not, mark directional rotation & set timing marks & reinstall exactly as removed, if necessary to remove belt for sensor replacement. Some vehicles, you can snake the sensor out without having to remove the timing belt. Best of luck. :)

Shifter physically goes into drive. Car starts out fine then wont shift past first gear.