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Spec : 3300 CC engine, 5 gear transmition

Tiny
AMINAZIZI
  • MEMBER
  • 2010 HYUNDAI AZERA
  • 54,000 MILES
Spec : 3300 cc engine, 5 gear transmition
car start well and quick and normal when it is cold. For example in the morning.


Car does not start on first attrempt 80% of time when I let the engine off for 1 or 2 hours. First start engine starts weakly and the turn off. Second start it turn on nurmally.

Other than that seems to run fine. Nto alwasy just when cold,
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Thursday, November 15th, 2012 AT 1:47 PM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuelpressure first.
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Thursday, November 15th, 2012 AT 2:00 PM
Tiny
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  • 4 POSTS
I check the code, but no code
and the fuelpressure is normal ( the mechanic said )
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Thursday, November 15th, 2012 AT 2:16 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have your crank and cam sensors checked for resistance they may be high and won't start well when warm.
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Thursday, November 15th, 2012 AT 2:32 PM
Tiny
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In this condtion when the resistance of the crank and cam sensors are high, what should I do?
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Thursday, November 15th, 2012 AT 3:03 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If they are to high then when the engine gets warm it causes hardstarting. I dont' have any specs howeveron what they should be so you'll have to check againsta new one like at anauto parts store. If they are to highlike out of range of a new one then replace them
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Thursday, November 15th, 2012 AT 5:28 PM
Tiny
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  • 4 POSTS
I really appreciate it
but do u have another suggestion which is strong probability to cause this problem?
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Thursday, November 15th, 2012 AT 6:58 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure should be 54.3-55.4 psi and hold it for 5minutes, if it drops slowly then one of the injectors may be leaking if it drops fast you need apump because the regulator is shot or bad. I have no other suggestions to give you other than your sock in fuel tank may be clogged or the fuelfilter itself
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Thursday, November 15th, 2012 AT 8:06 PM

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