fuel

Asked by Mark Mar 23, 2016 at 09:25 AM about the 1999 GMC Sonoma 2 Dr SLE 4WD Extended Cab SB

Question type: Maintenance & Repair

Hesitation,bog out  2-3 times a month   
replace fuel filter,pump 2010, whats your
take??

2 Answers

Mark answered 8 years ago

I dont know jus hope not fuel pump again $250 .oo02 sensor? Cataletic converter?

Mark helpful
221,015

Rowefast answered 8 years ago

Before ever replacing the fuel pump, you want to make sure there is a new fuel filter installed, then check the fuel pressure at the Schrader valve on top of the intake. Fuel pressure should 56 to 63 lbs. if this is a V8 engine. The catalytic converter could cause this, have it checked out. Could be starting to get plugged up. When warmed up the cat. would glow orange if plugged up.

Mark helpful

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