2002 Hyundai Sonata 4 cylinder - Hyundai Forum - Hyundai Enthusiast Forums


Hyundai Sonata The Sonata has grown to be the premier mid-sized sedan of the Hyundai name with the many interior options and the powerful V6 engine.

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Old 08-07-2017, 02:06 AM
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Default 2002 Hyundai Sonata 4 cylinder

Sometimes My 2002 Hyundai sonata won't start. It start easily in morning but I when I take it to work, lunch time I try to start the car, it won't start first couple of attempt, then start and die. I have to push accecelator to not car die, after few seconds it become ok. Its fine when its running. I took to a mechanic he changed starter, but nothing changed, then I changed spark plugs, fuel pump but still having the issue. Have new battery as well. Can someone please help me to find out the issue. I will be thankful for this kindness.
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Old 08-07-2017, 08:13 PM
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First, don't go back to the mechanic who changed the starter.
The starter only cranks the engine.
Since the engine was cranking then it should not have been replaced
(Unless there was a circuit transient coming from the starter motor.. extremely rare)

You can try using brake cleaner to clean the IAC
It could be the Crankshaft Position Sensor
Hyundai's are known to have issues with the CPS.

But that is all guessing

Good luck
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Old 08-08-2017, 12:10 AM
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Quote:
Originally Posted by avisitor View Post
First, don't go back to the mechanic who changed the starter.
The starter only cranks the engine.
Since the engine was cranking then it should not have been replaced
(Unless there was a circuit transient coming from the starter motor.. extremely rare)

You can try using brake cleaner to clean the IAC
It could be the Crankshaft Position Sensor
Hyundai's are known to have issues with the CPS.

But that is all guessing

Good luck
Thank you so much, I will give a try to IAC first, hopefully it will work. Thank you
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Old 08-08-2017, 10:48 PM
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This was interesting .. hope you enjoy it
No start due to EGR


Still CPS sometimes have issues when hot?

Last edited by avisitor; 08-08-2017 at 10:51 PM.
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Old 08-10-2017, 06:58 PM
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Thank you for sharing it.
do you know where AC is located? If you can guide me location or share an image please. Thank you
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Old 08-11-2017, 04:39 PM
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