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2003 Nissan Sentra

Tiny
MACEYW05
  • MEMBER
  • 2003 NISSAN SENTRA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 83,000 MILES
My 2003 Nissan Sentra has given the codes po303 and po462. We replaced the spark plugs and coil packs. The car is not wanting to start and at times I have to pump the gas pedal and crank the car for a long period of time then it will start. Other times it will start right up. It also is losing coolant. We do not see a leak though. The heater does not work sometimes and blows cold air. And finally white smoke has been coming out of the tailpipe. When I finally get it started the smoke will bellow out.
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Thursday, April 21st, 2011 AT 12:54 AM

1 Reply

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
White smoke can be raw gas or coolant. Or both. Pumping the gas pedal is no longer useful as carburetors are exstinct. Holding pedal to floor or somewhere in between could prove useful though. When heater is not working it could mean you are low on coolant.
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Thursday, April 21st, 2011 AT 7:37 AM

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