1996 Hyundai Elantra Will not start hot

DENITHY

MEMBER
1996 HYUNDAI ELANTRA

I've been having ignition issues lately. All involved no-spark.

Firstly, the car would randomly cut, and then not want to restart, I'd have to wait between 5-20 minutes to try cranking again, then it would start. I changed the Crank Sensor, and the problem immediately went away, for a week.

The engine got soaked in a heavy rainstorm, and initially there was no problem, but then it returned. I changed the Cam sensor and, again it immediately went away, but only lasted a day.

I now realize the car will start when the engine is cold, but not when it's warmed up. It fired right up this morning, and I drove it for 10 minutes to warm it up, and when I got back home it's the same problem: Cranking but no start.

I'm not getting any spark at the plug wires, but I can push start the car and it will run okay until I switch off again.

5 Replies

KHLOW2008

MECHANIC
41,815 POSTS

Did you check for trouble codes?
If you are able to push start it easily, the problem should be with the ignition switch. It is not connecting correctly and under such circumstances, you would get a no spark situation.
When problem occurs, you need tpo be testing the igntion coils for power supply while cranking.

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Monday, July 1st, 2013 AT 7:07 AM

DENITHY

MEMBER
3 POSTS

There's a short at the OBD port, so I can't check for codes :(

The problem only occurs when the engine heats up, and starts perfectly when cold, every time.

How do you check the coils for power supply when cranking?

I just changed the temperature sensor as well, to no avail. I was told that the Crank sensor is faulting as the engine heats up. How possible is that?

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Monday, July 1st, 2013 AT 9:22 AM

KHLOW2008

MECHANIC
41,815 POSTS

If you have a crank sensor fault, you would not be able to push start.

At the coil there is a power supply wire, you need to have battery voltage to ti while cranking.

If there is a short at the DLC, you need to get it rectified. That could cause the problem as well.

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Monday, July 1st, 2013 AT 10:23 AM

DENITHY