1999 Jeep Cherokee difficult to start

1999 JEEP CHEROKEE
276,235 MILES • 6 CYL • 4WD • AUTOMATIC
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HUNSTAGAB
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  • 1 POST
My jeep is hard to start. sometimes it starts right away and other times it will not start at all. I have replaced the rotor, distributor cap and spark plugs. I'm not sure but there are times i finally get it started and drive down the road and it will stall most of the time if i get it started it will stay running without further problem. this has been a very reliable jeep without any problems other than simple maintenance so most everything is factory.
Sep 14, 2010 at 1:41 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Next time it refuses to start do below don't wait to determine what's cauisng it

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem,If you can hear the fuel pump come On- check the fuel pressure with a fuel pressure tester designed for your fuel system to rule out the fuel filter/fuel pick-up strainer/fuel pump/pressure regulator and also listen to the injector/s are they pulsing or hook up a noid light and see if it flashing, If you don't hear the fuel pump, check the fuel pump fuse and fuel pump relay-Depends on what type ignition system is yours,No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, camshaft and crankshaft position sensors and computer Note: If it doesn't apply to your vehicle disregard it meaning if it doesn't come with one ignore it and continue testing
Sep 14, 2010 at 3:25 PM
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