1990 Mazda b2600 WON'T START WHEN HOT

1990 MAZDA B2600
90,000 MILES • 4 CYL • 2WD • MANUAL
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BEACH2916
  • MEMBER
  • 2 POSTS
TRUCK RUNS GREAT AND STARTS EVERY TIME WHEN COLD.WHEN HOT AND IT'S SHUT OFF IT WON'T START TILL IT SITS (AND I GUESS IT COOLS OFF).DOESN'T DO IT ALL THE TIME THOUGH. HELP!!!
May 20, 2010 at 3:33 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Hi BEACH2916, Welcome to 2carpros and TY for the donation

Next time it refuses to start when its hot -Do below to determine if its a 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, 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,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
May 20, 2010 at 4:20 PM
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