2003 Hyundai Elantra Engine Cranks, but no start

SPONKER

MEMBER
2003 HYUNDAI ELANTRA
4 CYL
2WD
AUTOMATIC
71,000 MILES

I came out to start my car and it will just crank but won't start. I have already replaced the ignition module and the crankshaft position sensor, but to no avail. There was no hint of any problem the last time I drove it, and now it won't start at all. Any ideas?

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Do below and see what happens then comeback

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.

Fuel pump and Injector/s checks out-start checking the ignition system-power to coil, coil/s itself, distributor pick-up, control module, Cam and Crankshaft sensors.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
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Tuesday, April 29th, 2008 AT 11:54 AM

SPONKER

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3 POSTS

There is no spark at all. As far as I know, the ignition coil is receiving power, but it's not being passed on. I can stick a screwdriver in any of the coil/plug wire holes and not get a thing. The fuel pressure is fine.

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Tuesday, April 29th, 2008 AT 11:58 AM

RASMATAZ

MECHANIC
75,992 POSTS

Inspect and test the coil's primary and secondary resistances/camshaft and crankshaft sensors.

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Tuesday, April 29th, 2008 AT 12:06 PM

SPONKER

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3 POSTS

How would I test those? I already replaced the crankshaft sensor as it seems that those are fairly likely the cause. The ignition module is a little different than what I'm used to, it has no rotor/distributor and the lay out is a bit different.

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Tuesday, April 29th, 2008 AT 12:08 PM

RASMATAZ

MECHANIC
75,992 POSTS

Could be the coil packs/igntion control module/Crankshaft sensor wiring problem or the computer is just not telling the ignition control module to fire the coil/s.