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No crank issue 2004 silverado 1500 5.3 - motor swap
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Question
Blufie
Hello all,
I had to swap the engine in my 04 Silverado (4WD crew cab z71 - if it matters) with salvage unit. Took replacement engine down to long block and used everything from my original engine except cam/crank sensors from old engine (donor engine was out of 04 suburban). After connecting it all back up, no crank issue appeared. I know that anything is possible with wiring breaks, but I was careful to repair and reattach any grounds, and most of the electrical is plug-n-play so hard to mess up.
Anyway, here are the symptoms...
The only thing that was abnormal about the first power cycle was some unusual clicking near one of the fuel injectors for cylinder 1 and the battery was only outputting about 10 volts. I charged the battery and I cannot find any obvious shorts or missed connections or wires but still stuck.
Diags:
I suspect that the BCM is toast but would love to try some more trouble shooting steps or get some expert advice. I would also appreciate a suggestion on the best service manual to purchase for this vehicle.
thank you all for the time to read all this!
Steve
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