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New Fuel Pump With No Pressure to Throttle Body
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janny011
New User
Jan 16, 2012, 6:04 AM
Post #1 of 9
(2330 views)
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New Fuel Pump With No Pressure to Throttle Body
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My husband installed a new fuel pump on his 1999 Chevy Silverado 1500 LS 5.3 8 cylinder truck. The installation went well, and after filling the gas tank he attempted to start the truck and nothing. He can hear the hum, but there is no pressure to the throttle body. He made sure the fuel filter was good and then unplugged the line from the fuel filter to see if there was any pressure and nothing. No pressure no nothing. So we are wondering what could be the problem. Is he supposed to somehow prime it?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 16, 2012, 7:21 AM
Post #2 of 9
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Re: New Fuel Pump With No Pressure to Throttle Body
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If you hear the pump running, then ou can only have either an empty tank, bad fuel pump or installation error.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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janny011
New User
Jan 16, 2012, 8:09 AM
Post #3 of 9
(2289 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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Thank you! I think my husband is going to take out the new fuel pump and replace the hose. From what I gather a pin hole in the hose can keep it from working.
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liltruckjr
Novice
Jan 21, 2012, 2:55 PM
Post #4 of 9
(2237 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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Had fuel problem once.. bought fuel pump from an auto perts store.. went thru 5 before finally gettin a good one..
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re-tired
Veteran
/ Moderator
Jan 21, 2012, 10:14 PM
Post #5 of 9
(2232 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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Seldom does what happpens to one person relate to another. In your case you could have saved 4 install/removals by buying OEM parts.You saved little for the trouble of shopping around .. But thats another post if you wish to continue.
LIFE'S SHORT GO FISH
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ROBBERT
Novice
Jan 22, 2012, 7:12 AM
Post #6 of 9
(2226 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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check pump relay its under the hood
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ROBBERT
Novice
Jan 22, 2012, 7:45 AM
Post #8 of 9
(2215 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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My bad thought it was not running sorry
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Discretesignals
Ultimate Carjunky
/ Moderator
Jan 22, 2012, 8:56 AM
Post #9 of 9
(2209 views)
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Re: New Fuel Pump With No Pressure to Throttle Body
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Did your hubby install a fuel pump module or go the cheap route and install the fuel pump kit into the old sender assembly?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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