GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

decent fuel pump brand

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Old Mar 13, 2016 | 03:07 PM
  #11  
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Default how do i diagnose if it is the fuel pump

how do you check to see if the pump is bad, a few months ago i put almost 8 or 9 dollars worth of gas in and the gauge didnt move much , gas gauge sometimes sticks and is very slow to move UP
Originally Posted by 1bad2k
If you want a walbro, just make sure to get it from a reputable source. It's way too easy to end up with a knock off walbro lately.. I would personally recommend an oem pump. I would also make sure that's what the actual problem is first and not just throw a fuel pump at it.
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Old Mar 13, 2016 | 07:45 PM
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Check fuel pressure and see what youre getting, then check resisitance of the fuel sender to make sure it giving an accurate reading.... Sticking guage may be a cluster issue!!
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Old Mar 14, 2016 | 06:10 PM
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Well...there are many signs. For example mine whines horribly loud, you can't rev past 2500-3k without the engine stalling out and 3500-3k still doesnt have the right amount of power. It has trouble starting and many other things.

That was a Carter pump. I used that in my 00 Silverado for 100k and then in my 01 sierra for about 80k.

I got a AC Delco this time, I am hoping it'll be dead silent.
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Old Mar 14, 2016 | 09:11 PM
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Ive had fuel pumps that for years would drain down over time and i had to crank the engine over let it sit for a second and build pressure back up and then it would start... First pump the guage would act up, did that for about a year before the pump actually went..... Nezt two had same drain back issue..... See how this one goes.... Been about 15,000 miles so far without a hiccup.....first replacement was delco, second was airtex, third is carter..... Maybe on fourth....
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Old Mar 15, 2016 | 07:14 PM
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From: indiana
Default how do you check fuel pressure?

how do you check fuel pressure? or the resistance thing you mentioned?
Originally Posted by Wolftrk99
Check fuel pressure and see what youre getting, then check resisitance of the fuel sender to make sure it giving an accurate reading.... Sticking guage may be a cluster issue!!
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Old Mar 15, 2016 | 10:17 PM
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You need a fuel pressure tester, that will screw onto the test port on the fuel rail, as far as checking the resistance if the fuel level sender, you need to pull the pump and connect an ohmmeter to the terminals for the level sensor and make sure your resistance cahnges smoothly as you move the sensor float/arm
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Old Mar 17, 2016 | 12:19 AM
  #17  
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I ditched the in-tank pump shenanigans a year and a half ago and haven't looked back. I went with a Walbro GSL-392 inline pump, keeps up the pressure quite well but is pretty noisy compared to an in-tank pump...the whine could be quite easily mistaken for the D-1SC that I don't have...

Even if it dies it's a 5 minute swap, plus if I need more fuel I just T in a secondary or a bigger pump.
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