hossram64 Posted April 3, 2010 Report Share Posted April 3, 2010 I just installed a walboro inline fuel pump on my truck I also have my stock fuel pump. How do I tell if the walboro pump is working? I dont hear it making any humming sound, but my guess is that the truck wouldnt start if it didnt work because the stock pump wouldnt beable to push the fuel pass the inline pump unless it was working? is this true? I just want to make sure it is working. thanks guys. Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted April 3, 2010 Report Share Posted April 3, 2010 I just installed a walboro inline fuel pump on my truck I also have my stock fuel pump. How do I tell if the walboro pump is working? I dont hear it making any humming sound, but my guess is that the truck wouldnt start if it didnt work because the stock pump wouldnt beable to push the fuel pass the inline pump unless it was working? is this true? I just want to make sure it is working. thanks guys. check to make sure its getting good power, my radix inline is the same pump and its god awful loud Quote Link to comment Share on other sites More sharing options...
SSplaytoy Posted April 4, 2010 Report Share Posted April 4, 2010 The inline pump will have a loud whine to it and yes your truck will still run from the pump that's in the tank. Did you hook up the inline pump properly with a relay? Quote Link to comment Share on other sites More sharing options...
hossram64 Posted April 4, 2010 Author Report Share Posted April 4, 2010 I used a relay I hook up the power wire to a 20 amp fuse in the fuse box it only powers when I turn it on. not sure if I hear a whine or not. But my truck was having problems starting before it took alot of turning over to get it started and now it starts right away while im driving now it doesnt drop below 50 psi of fuel pressure Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted April 4, 2010 Report Share Posted April 4, 2010 u could have a bad fuel pressure regulator as well..... Quote Link to comment Share on other sites More sharing options...
Kunz Posted April 28, 2010 Report Share Posted April 28, 2010 u could have a bad fuel pressure regulator as well..... I'm having the same problems as the guy above, but I have a 95 blazer how would you test a bad fuel pressure regulator? Quote Link to comment Share on other sites More sharing options...
8 UR HMI Posted May 14, 2010 Report Share Posted May 14, 2010 problems starting, lean fuel trims, hard restarts on warm motor... etc.. Quote Link to comment Share on other sites More sharing options...
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