I have 2002 dodge stratus, replaced timing belt-water pump-coil pack-camshaft sensor-spark plugs-idle air control valve. Runs smooth at higher speeds but idles rough and dies after about 10 to 15 minutes.

It's a common problem on our Dodge Ram van. You might check the fuel pump, and the wiring there-to.

Have you cleaned the throttle body and throttle body valve? have you cleaned the idle speed control air bypass valve? are the injectors clean? Are there any fault codes in memory, do the things I mentioned if you haven't already. Also hard engine mounts can cause roughness at idle. Another thing is the timing belt tight?

if your valves are bent ,then i take it your timing belt has snapped .which means your camshaft can not turn ., so you can not get a spark at the plugs.if it was the old distributor you would have been able to check the coil with a spark plug tester the trouble is with a coil pack it is controlled by both sensors and your ECU but due to the camshaft not turning so your camshaft position sensor can not tell the ECU to fire the coil pack.

Could be the idle air control, once these start hanging up inside, they can cause as variety of problems with idle speed (can become wildly random) or simply a failure to idle at all.

These links should help:
Where is the idle air control valve located on 2004 Dodge Stratus

2004 stratus idle air control Bing

This could also be caused by a failing ignition pack.

Dirty or disconnected IAC (Idle air control) valve, dirty mass air meter (Maf) or being slightly out of time can all cause idle/stall issues.

That sounds like a problem with a cam or crankshaft position sensor, and there might be a damaged sensor or tone ring, or dis-connected wiring to the sensors, or there might even be a camshaft out of alignment.

This car has a very possible chance of having either a slightly bent valve, causing the loping idle, or the belt was installed a tooth off on the timing, it's one of the two.easiest way to deduce this would be to recheck the timing belt marks, to certify they're correct, then to do a simple compression check, get back to me with any questions, I'M HERE TO HELP!!!

Were the plugs covered in oil? With the plugs that go through the valve cover you might need new seals. Did you replace the plug wires? You need to scan it for codes. It's most likely a missfire, but it could be a bad speed sensor (also called, VSS vehicle speed sensor, cam position sensor,or crank position sensor).

1 Inspect M.A.P. Sensor Faulty M.A.P. Sensor. 2 Inspect EGR Valve Improperly Functioning or Faulty EGR Valve. 3 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 4 Inspect Idle Air Control Valve Damaged, Loose, or Faulty Idle Air Control Valve. 5 Inspect Idle Speed Actuator Damaged, Loose, or Faulty Idle Speed Actuator. 6 Inspect Throttle Position Sensor Faulty or Incorrectly Connected Throttle Position Sensor. 7 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 8 Inspect PCV Valve Plugged or Damaged PCV Valve. 9 Inspect Carburetor Worn, Faulty or Damaged Carburetor. 10 Inspect Valve Burned, Worn, or Sticking Exhaust Valves. 12 Inspect TimingSet Slipped TimingChain or Worn TimingGear(s). 13 Inspect Fuel Pump Faulty Fuel Pump. 14 Inspect Camshaft Camshaft Lobes Worn. 16 Inspect Point Set Burned, Worn or Incorrectly Set Ignition Points.

This code is for cylinder #6 you have a coil that is bad on that cylinder