I have a 1986 jeep comanche it either idles high or doesnt want to run where do i begin?

Most vehicles have a high idle until the engine gets hot. As for your random problem, might want to check for any vacuum leaks that could cause this problem.

When checking, best to do with cold engine. Start your vehicle and spray short amounts of starting fluid near vacuum hoses, if idle changes, you may have a leak. Keep away from exhaust manifold if at all possible. Also spray near intake hoses and air filter housing.

Maybe check to see if there is a cv boot it's located by the wheels on both sides if they're wet then u need to get replaced

which component?

Check fuel pump for operation. Check for blocked fuel filter. Check for problem of tank not venting and creating a vacuum that will not let the fuel to be pumped to the carby.. Check that the needle and seat in the carby is not jammed closed or the small filter at the inlet is not blocked

idle speed control not working. if idle speed too low engine wont stay running.

You might try adjusting the idle at the throttle body, check the mass airflow sensor, and check for leaks around the plenium.- or what some people still refer to as the intake. And, check the condition of the fuel rail and injectors.

That depends on whether you need the fan to ac belt, the fan to alternator belt, or the fan to ps belt.

this should help you...lots of options

if its a 2.8 the firing order is 1-2-3-4-5-6 and the distributor rotates:clockwise if you lose this look ontop of your intake manifold and it has it stamped on it by the number to intake.

How about plug wires they are sometimes the problem if plugs arent getting proper fire they sure do look bad .. look for any burns and check them close