The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Problem starting truck after sitting overnight.

bbrriiaann1973 · 01-01-2018, 02:06 PM

It acts like it's not pumping enough fuel at low engine speed, it's a hi performance fuel pump designed to pump max pressure at high rpms. Would going to a normal stock fuel pump fix the problem?

I have installed a helper fuel pump in line of the mechanical fuel pump and it seems to help a little.

Cranking engine 30 times vs say 20 times with the helper fuel pump.

01-01-2018, 02:06 PM	#4
bbrriiaann1973 Registered User Join Date: Jun 2015 Location: Phoenix Az Posts: 211	Re: Problem starting truck after sitting overnight. It acts like it's not pumping enough fuel at low engine speed, it's a hi performance fuel pump designed to pump max pressure at high rpms. Would going to a normal stock fuel pump fix the problem? I have installed a helper fuel pump in line of the mechanical fuel pump and it seems to help a little. Cranking engine 30 times vs say 20 times with the helper fuel pump.