i have replaced fuel filter still code 44 what is next

5

Asked by Aug 28, 2014 at 11:02 AM about the 1990 GMC Sierra 1500 K1500 4WD Standard Cab SB

Question type: Maintenance & Repair

i have 1990 gmc 5.0 getting code 44  seems like it is not getting fuel when problem
comes i can shut truck off and restrart it it clears up for a while then comes back  is it bad
fuel pump

2 Answers

75,215

Yes, from what you said it more than likely is fuel pump.

116,015

44 is a system lean code, you may want to check the fuel pump pressure and flow to verify that is the problem before dropping the fuel tank to replace the pump and strainer. Have you checked for vacuum leaks? Is the PCV working properly?

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