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Hard start when parked for more than four hours

Tiny
CHILIZA
  • MEMBER
  • 2003 VOLKSWAGEN POLO
  • 1.6L
  • 4 CYL
  • FWD
  • MANUAL
  • 190,000 MILES
I had a problem in the morning when trying to start my car, it would crank for a while but would not start, after five or six attempt it would start, and once it started it will never give problem but once I parked it for many hours it will first crank more times before it could start. The other problem is that when I take off the car stalls at first gear then release after few seconds.
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Tuesday, August 23rd, 2016 AT 1:01 AM

9 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Is this a diesel engine? If so it sounds as if you fave a faulty glow plug, often if a glow plug has failed you will get the hard start and rough idle until that cylinder has heated up, normally just a min or so, ids this the case for you?
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Tuesday, August 23rd, 2016 AT 3:15 PM
Tiny
CHILIZA
  • MEMBER
  • 5 POSTS
It is a petrol, there is one troubleshooting I just did this morning to diagnos my petrol pump if its working properly and I this it is weak, before I could crank my engine, I switch the key on to hear the fuel pump sound and turn it off, did it for a second tym and for the third time, the forth time I crank the engine it start same time, Dont you think I have to change my petrol pump?
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Tuesday, August 23rd, 2016 AT 10:07 PM
Tiny
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  • MECHANIC
  • 31,937 POSTS
Sounds as if there is a fuel rail pressure problem or a bleed back problem, best to get a fuel rail pressure test done to see how fast the pressure drops off and if you are getting correct pressure while the pump is running.
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Wednesday, August 24th, 2016 AT 12:35 AM
Tiny
CHILIZA
  • MEMBER
  • 5 POSTS
How does fuel rail pressure look like?
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Wednesday, August 24th, 2016 AT 2:46 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
You will have to get a pressure gauge and attach it to the test port on the rail a mechanic will probably have to do this for you as a gauge is expensive to buy they need to look at line pressure and how much bleed back pressure there is over an hour or so
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Wednesday, August 24th, 2016 AT 2:51 AM
Tiny
CHILIZA
  • MEMBER
  • 5 POSTS
Thanks will try and do that, thanks once more again.
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Wednesday, August 24th, 2016 AT 3:17 AM
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Please let us know how it goes so it will help others.
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Tuesday, August 30th, 2016 AT 10:15 AM
Tiny
CHILIZA
  • MEMBER
  • 5 POSTS
I tried that and still it did not work, someone advised me to change a fuel pump, accoding to his diagnosis the fuel pump is not faulty but its very weak, what do you think.
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Tuesday, August 30th, 2016 AT 10:20 PM
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Yes that can cause the problem you are describing. Please let us know what you find
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Wednesday, August 31st, 2016 AT 2:47 PM

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