Delay start

2007 PROTON GEN-2
70,000 MILES
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AHMEDHAMDY
  • MEMBER
  • 2 POSTS
My car Chery a5 not listed.
The problem is, car started in the morning in one second or less but after some time of driving if I stop the engine for minutes. also start rapidly the problem occur when I leave the car for one hour or more the delay is about four seconds. in first second there is short trial from the engine and failed.
I have checked the following:
Evap valve it is closed.
Fuel injectors.
Thanks in advance.
Mar 1, 2018 at 5:45 AM
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STEVE W.
  • ✓Experienced Mechanic
  • 15,367 POSTS
The description sounds like a failing crank position sensor. It heats up and causes a bad signal. Once it cools the sensor works again. That is based on seeing similar issues with other vehicles. When it does not start how fast does the tachometer move?
I cannot find any good service information on that car as it never made it to the U.S. so telling you how to test the sensor is not possible.
Mar 2, 2018 at 8:42 PM
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AHMEDHAMDY
  • MEMBER
  • 2 POSTS
Thanks, I will replace it and inform you if succeeded.
Mar 2, 2018 at 10:58 PM
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