2001 silverado wont start first crank
#11
I'm here for the party
i know on the tbi trucks the OSP would override the fuel pump relay after oil psi reached 3psi. the OPS is only meant to be a backup for when the relay would fail. i didnt know the 96+ still used this method and not sure they did but sure does sound like it. can anyone confirm?
#12
It is more likely that the check valve in the fuel pump assembly is bad. My truck did the same thing and I added an inline check valve in the fuel line near the fuel tank and that solved my problem. i bought the check valve on Ebay and I needed some fuel injected rated fuel line and some hose clamps. Total cost was about $15.00 and I did the installation.
However did u just use fuel hose with the valve and hose clamped the valve and then at the pump and where it connects to the hard line.
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