Extended cranking between cold and hot

Tiny
CELLOBIKER
  • MEMBER
  • 2004 CHEVROLET MALIBU
  • 3.5L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 28,600 MILES
Car starts perfectly when cold or hot, but in between it requires two to three tries. The engine then sputters to life, sounding like it is not getting enough fuel.
Once it gets going it runs fine. No engine lights. I already replaced the air filter and the fuel pressure sensor.
Saturday, February 18th, 2017 AT 12:57 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure with a gauge auto parts rent it. it may be low on pressure causing this. See link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Saturday, February 18th, 2017 AT 6:06 AM
Tiny
CELLOBIKER
  • MEMBER
  • 3 POSTS
Thanks so much. Car is going in the shop. Will keep you posted!
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Saturday, February 18th, 2017 AT 11:43 AM
Tiny
CELLOBIKER
  • MEMBER
  • 3 POSTS
You were right! Low fuel pressure caused by a bad fuel pump. Got a Delphi and the car starts perfectly - at all times. Many thanks!
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Tuesday, February 21st, 2017 AT 12:09 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,665 POSTS
Yep HMAC300 is one of our best!

Glad you could get it fixed please use 2CarPros. Com anytime we are here to help

Best, Ken
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Thursday, February 23rd, 2017 AT 3:35 PM

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