Re: 99 Silverado Rough Start
I'll check the fuel pressure, but I don't think it's leaking down. That's why I did the test where I turned the key immediately to start and compared it to leaving it in the ON position for 5 sec or more. No difference noted. The 5 sec should have been enough time to build the pressure up. I'll pull the TB and clean it and check fuel pressure this weekend when it warms up. Been below 0 all day today and gonna get really cold tonight.
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72 GMC Sierra Grande SWB 402 BB A/C
(Owned it since 1973)
99 Silverado 1500 LT with 315K miles
(RIP)
2012 GMC Sierra SLT
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