My 03 Silverado 4.3 won't start start

Asked by hellraza337 Feb 17, 2021 at 06:46 PM about the 2003 Chevrolet Silverado 1500

Question type: Maintenance & Repair

Changed out my crank. shaft
position sensor and changed out
the wire connector to the
crankshaft position sensor and put
a new camshaft position sensor in
my 03 Silverado 4.3 v6 and now my
truck won't start

2 Answers

26,470

Make sure battery has a full charge and connections all good. If it cranks good but won't start, have a helper crank it while you check for spark at the plugs-- use a gage and check proper fuel pressure. check fuel injector pulse. Any applicable trouble codes? Those are the basic checks, in my opinion. Let us know what your missing, spark--fuel--whatever.

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