What am I doing wrong?
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What am I doing wrong?
Folks,
I'm working on an '89 F250 with a 351W. It was having low fuel pressures issues, so I replaced filter. That didn't make any difference so I replaced the high pressure fuel pump. It ran for about 5 minutes before the pump quit. It showed about 5 psi. Next, I replaced the fuel pressure regulator and the fuel pump. Still only 5 psi. I checked the voltage at the pump and it was 12V. I know the pumps started out OK with about 5 ohms but now they both show open circuits. They are Airtex pumps, so... are Airtex pumps junk, or am I causing the problem?
I sure would appreciate some help with this.
Jim
I'm working on an '89 F250 with a 351W. It was having low fuel pressures issues, so I replaced filter. That didn't make any difference so I replaced the high pressure fuel pump. It ran for about 5 minutes before the pump quit. It showed about 5 psi. Next, I replaced the fuel pressure regulator and the fuel pump. Still only 5 psi. I checked the voltage at the pump and it was 12V. I know the pumps started out OK with about 5 ohms but now they both show open circuits. They are Airtex pumps, so... are Airtex pumps junk, or am I causing the problem?
I sure would appreciate some help with this.
Jim
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No, I didn't replace the tank pumps. I suppose I could turn them on for a couple seconds and watch the fuel line, but I can very clearly hear them turn on for a couple seconds when I turn on the key.
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Yep, I keep a piece of wire under the hood so I can jump the fuel pump anytime after all, it's 24 years old. I also keep a pressure gauge on the fuel rail. I guess I'm not doing anything wrong here. Airtex just has a serious quality control problem. I'll take it back and get a third pump, but it doesn't inspire much confidence. Maybe I can exchange it for another brand.
Thanks for the help
Jim
Thanks for the help
Jim
Lead Driver
Joined: Dec 2012
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From: Tennessee
Not just Airtex . Many are crap . I worked untill 9pm one night putting fuel pumps in patroll cars during Bonaroo . 5!! went that day ! The heat , crappy fuel , and substandard parts . Oh, I also put 3 alt,s on my friends car , ALL from GM !
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