1990 Chevy Corvette no start after warmup condition

1990 CHEVROLET CORVETTE
100,000 MILES • V8 • 2WD • MANUAL
Avatar
COOLLCOS
  • MEMBER
  • 1 POST
runs good for a few minutes,then gets rough idle,turn it off it will not start back for about 10 minutes,added plugs and wires,fuel pump, dist, cap and button,air sensor,ignition m odule,checked vacuum lines,new air filter,fuel filter,maf sensor,please help
Oct 3, 2010 at 12:00 AM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
turn it off it will not start back for about 10 minutes,

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, 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
Oct 3, 2010 at 2:01 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.