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02 Chevy Express 2500 5.7 cranks but no fire
I've read different articles about this same issue but figured I would add my problem. Drove the van in 35 degree weather, then sat for 5 days in below 15 degree temps. Ran fine up until I tried to start after sitting. The van will crank all day but not fire, unless you spray starting fluid in the air boot.
Changed the distributor cap and rotor -checked spark, and have spark
Changed fuel filter -Checked fuel pressure, has about 63 psi and holds that pressure
Checked all the fuses with a multimeter, also pulled and reseated them.
Hooked up cheaper scan tool, no codes.
I'm thinking about key/security system? -Did turn the key on and let set for 10 mins, nothing.