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Hard start and while driving it loses power

Tiny
TAMMY LYNN MONROE
  • MEMBER
  • 2010 PONTIAC G6
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
When I try to start the car sometimes it won't start. It will lose power when driving also. It will take several hours for it to finally start. I've had it diagnosed at Car Care and they were unable to diagnose anything wrong. Please tell what can be wrong? I need my car for work, I'm a door dash driver.
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Wednesday, March 3rd, 2021 AT 3:47 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I would check the fuel pressure to be sure the fuel pump is working.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

FUEL PRESSURE

Fuel Pressure (Key ON, Engine OFF) .................... 386-427 kPa (56-62 psi)
Should not decrease more than .................... 34 kPa (5 psi) in 1 minute

I attached the location of the tap for checking the pressure below.

Roy
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Wednesday, March 3rd, 2021 AT 3:58 PM

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