My jeep wont turn engine over unless i put it in nuetral

is the transfercase in nuetral ? check that as that is the only thing that could stop a manual trans from moving trk unless the output shaft in trans broke but that only you will know.

This is most likely due to a faulty nuetral saftey switch.

Check the nuetral safety switch sound like to me you may have problems with this a vehicle should only start in park or nuetral if it starts in any other gear you may need to adjust the safety nuetral switch.

MOST LIKELY YOU WILL NEED TO REPLACE THE NUETRAL SAFETY SWITCH IT IS THE MOST COMMON CAUSE OF THIS PROBLEM, IT IS LOCATED ON THE TRANSMISSION CASE UNDER THE ARM THE TRANSMISSION SHIFT CABLE ATTACHES TO, SEE PHOTO BELOW.

STANDARD MOTOR PRODUCTS Part # NS113T [NUETRAL SAFETY SWITCH]

That is normal, in park or neutral there is no resistance on the engine when you put it in gear there is resistance because the car wants to move. Also when you turn on the ac that turns on the compressor that is run off the belts of the engine so it puts more resistance on the engine. Low idle is not a problem unless the engine dies.

Sounds like the clutch , take it back and have them check out the pressure plate bolts and the throw out bearing. Also have them check the slave cylinder for leaks, or "fork" for proper alignment

Neutral safety switch usually threaded into transmission, unless AW-4 model. Same switch used to trip back-up lights. Look for harness with approx 3-4 wires, unplug & unscrew switch from transmission.

have your idle air control valve checked. on my 5.2 v8 is located on back of throttle body. My hardware was loose. DO NOT OVER tighten,follow torque spec in manual.

try it in nuetral.have replaced afew of them myself nuetral safty switch!

Place the trans in nuetral then put the transfer case in 2HI.
when you drive on the road always have the transfer case in 2HI UNLESS you have a transfer case that has an alltime 4WD option