Question about 2004 Pontiac Grand Am

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Grand am 3 4

Fuel pump was bad replaced fuel pump car started and ran fine car sit for three hours wouldn't start turns over fine has fuel pressure,spark etc. spray carb cleaner in throttle body car will start and stay running runs and drives fine let it sit for three hours and same thing again has fuel pressure and spark,cam,crank refs but wont start spray with carb cleaner it will start again and run fine not setting any DTC's Any Ideas?????

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  • Contributor
  • 8 Answers

Sounds like a faulty fuel pressure regulator, or possibly the MAF sensor.

Posted on Mar 29, 2014

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

daves944
  • 1050 Answers

SOURCE: ok car was running fine,parked

This is a classic fuel pump failure. You'll need to remove the gas tank and replace the pump.

Posted on Mar 03, 2011

  • 1861 Answers

SOURCE: bonneville ssei

Fixexpert, Hondachopper, RonaldSuboc, Kevin000, Chad7, please step off, you are ALL WRONG, and your info is 100% USELESS.
If you HAD ANY experience re this issue, you would KNOW THE FOLLOWING:

Kkvesr, What you need to look for, is the main ECU ground point at the LF rocker panel rail; lift the carpet to see this, between the seat and the rocker...there are several wires going to a corrugated "star washer". If you are NOT getting a ground pulse in the RED wire, your main ECU ground, at the wire position described above, may be corroded. if so, no injection.
This is a very common problem, unique to the Bonneville.
Please advise me if this helps, and thanks for choosing FixYa.

Posted on Nov 01, 2008

  • 2 Answers

SOURCE: 1989 Firebird won't start unless gasoline is sprayed in throttle.

do you have a K&N air filter system some times oil from the filter will get on the air mass flow senso and wont let it start. If it does try cleaning air mass flow sensor and some of the oil on K&N filter

Posted on Sep 24, 2009

  • 10 Answers

SOURCE: car cranks but wont start

replace your injectors. your vehicle is getting the fuel to start from the starter fluid. however the injectors arent giving it the gas that it needs to stay cranked

Posted on Feb 23, 2010

  • 14036 Answers

SOURCE: my 2001 pontiac grand am

CHECK FUEL INJECTOR FUSE IF FUSE OKAY PROBLEM COULD BE PCM BUT HAVE CAR CODE SCAN TO LOOK FOR CMP OR CKP SENSOR FAULTS.THEY ALSO CONTROL FUEL INJECTORS AND IGNITION COILS FIRING.

Posted on Aug 23, 2010

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