starting my astra

112,867 MILES • 4 CYL • 2WD • MANUAL
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BENNKEZ
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  • 1 POST
my 1998 astra has trouble starting when engine warm. it is fine when cold. however sometimes when warm will start ok. runs fine when started, any ideas
Apr 10, 2011 at 6:30 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Investigate

https://www.2carpros.com/articles/car-cranks-but-wont-start

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
Apr 10, 2011 at 12:09 PM
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