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Re: Lil troubleshooting help
I am assuming this is an 87-91 RV series and not a TBI conversion on an earlier CK.
No power on either side of the IGN fuse means you don't have power coming from the ignition switch.
It cranks so both fusible links are good.
My first guess is the ignition switch has failed. Buzz the pink wire from the IGN1 terminal on the ignition switch plug to the IGN and ECM1 fuses on your fuse panel. Then check both RED wires for 12v at the ignition switch.
The HEI BAT wire and the IGN & ECM1 fuses get power from IGN1 terminal on the ignition switch. No 12v at BAT IGN & ECM1 = no spark or fuel.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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