Codes P0137, P0171, P0174, P0307, P0332, P0446, while driving the engine lost power and shut off?

2005 CHEVROLET SILVERADO
150,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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JUSTIN KIZZIRE
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  • 2 POSTS
Replaced fuel pump 2 months ago. Everything was fine. Then I was driving it one day for maybe two miles and the engine lost power and shut off. I got it to start once on side of road and it sputtered but wouldn't go when I put in gear. Now it won't start. I'm getting fuel to fuel rail at Schrader valve. I replaced crankshaft position sensor; spark plugs and wires. Checked all fuses (all good), checked all fluid levels. I put a code reader on truck, and it had 7 error codes P0137, P0171, P0174, P0307, P0332, P0446. When I try to start it, the engine sounds like it's turning faster than normal. And I hear a dragging or grinding noise while trying to start it. It kind of seems like the timing is off or something. What is wrong with my truck?
Sep 30, 2022 at 6:02 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,267 POSTS
It sounds like the timing chain broke, but I can tell for sure if you upload a quick video of the engine cranking over, or you can do a compression test.

Here is a guide to help you:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please go over this guide and report back.
Oct 1, 2022 at 4:11 AM
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JUSTIN KIZZIRE
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Well, before I went through the process to check the timing chain, I decided to test every sensor (if possible) and the ignition coils. I sprayed starting fluid in throttle body and got it to start and sputter for 5 seconds before backfire. But while checking the camshaft sensor (which is in a hard place to get to) I noticed the power wire and signal wire both had copper wire showing right where it went into connector. I taped each wire preventing them from touching. Got in truck and it took maybe 10 tries but each try it sputtered a little longer until it started like normal like it should. Took it out to relearn the crankshaft sensor and it seems to be fixed. Can't believe I spotted the wires exposed and touching but glad I did. I was 100% sure it was a broken timing chain. Glad it wasn't. Thanks a lot Ken.
Oct 2, 2022 at 2:58 AM
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