car wont start once engine warm

1998 HYUNDAI GENESIS COUPE
2WD • MANUAL
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FUNKISTEE
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  • 1 POST
hyundai coupe f2

car will start from cold but once engine warm and i turn engine off it wont start, it tries to turn over but wont, but if i leave car for 45 mins or more it will then start

local garage have had it several times but cannot find the fault.

they have even towed my car to garage as couldnt start it but following morning when they took it off truck it started.

Feb 5, 2011 at 10:04 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

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, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
Mar 10, 2011 at 3:19 AM
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