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07-30-2011, 10:06 AM
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#1 | |
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AF Newbie
Join Date: May 2010
Location: Winger, Minnesota
Posts: 5
Thanks: 0
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03 Sierra Fuel Pressure
I have an 03 Sierra Half Ton when the engine is warm it runs fine
but at cold start, half the time it doesn't have the fuel pressure to start, i have to turn the key a couple times to build it up. idk if the fuel pump is weak for if it would be more the regulator i started having this problem after i replaced the fuel pump. the fuel pressure gauge shows 50-55 lbs, but every now and then when its cold it will only jump to around 5 lbs (but this is only when the engine is cold... why?) What should i go after first? Regulator, new pump, Replace the fuel filter again? Thanks |
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07-30-2011, 11:54 AM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,950
Thanks: 25
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Re: 03 Sierra Fuel Pressure
Pump. and check for a burnt connector at the tank.
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08-10-2011, 10:09 PM
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#3 | |
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AF Newbie
Thread starter
Join Date: May 2010
Location: Winger, Minnesota
Posts: 5
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Re: 03 Sierra Fuel Pressure
Fuel Pump ended up going out on me the other day, New Airtex Fuel pump, new fuel filter, and new wire harness for the pump. Now she runs Great!
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