No crank no start?

Tiny
ARIANADANIELLE5345
  • MEMBER
  • 2008 BUICK LUCERNE
  • 3.8L
  • 6 CYL
  • AUTOMATIC
  • 80,000 MILES
Changed intake gasket then started fine the first time but ran rough, thenall of a sudden there were a bunch of fuel codes when I tried to start it again so I changed the fuel tank pressure sensor and a bunch of other fuel sensors plus the fuel pump took the harness off the engine and covered some bare wire that I saw then it would die when I would turn the wheel now it’s no crank no start. New alternator new battery new fuel pump new sensors re-wrapped the harness new sensor on top of the vapor canister new sensors in the engine. I cannot figure out why it won’t start now.
Tuesday, March 25th, 2025 AT 12:02 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,271 POSTS
Can you please give me the code numbers? Also, I would see if the engine turns over by hand, this video will show you how:

https://www.youtube.com/watch?v=oN42gZN6gOE

Also, this video may help as well:

https://www.youtube.com/watch?v=6YRW8fyNudY&t

Please go over these guides and get back to us.
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Tuesday, March 25th, 2025 AT 3:03 PM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 330 POSTS
The battery is new. All of this started when I changed the intake gaskets. After I put it all back together it started but ran rough. All of the fuel had leaked out, so I changed the injector o rings as well because they were all melted from the car overheating. When I was bleeding the cooling system ran out of gas. After that fuel tank pressure sensor code popped up so I changed all of those sensors plus the fuel pump then it was crank no start and some other sensor codes popped up, so I removed and re-wrapped the wiring harness because there were bare wires then it started and drove a couple of miles but then it stalled. Started it up but then it would stall every time I turned the wheel. Then it would just stall out right after start up without turning the wheel and now it’s just no crank no start but I checked, and the wire harness is all plugged in correctly and nothing is touching. All the original codes are gone but new ones popped up. I’ll list them. Also, the ABS and traction control lights are illuminated on the dash now.
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Wednesday, March 26th, 2025 AT 10:38 AM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 330 POSTS
My Autel won’t connect to it now for some reason but these were the codes from yesterday. Also, when I try to turn the key, the power shuts off but comes right back on when I release the key from the cranking position and put it back in acc.
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Wednesday, March 26th, 2025 AT 11:05 AM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 330 POSTS
Only thing I can come up with is I messed up the ECM by working on the car in the rain.
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Wednesday, March 26th, 2025 AT 1:47 PM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 330 POSTS
I fixed it. It ended up just being a loose ground wire, lol.
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Wednesday, March 26th, 2025 AT 5:24 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,271 POSTS
Nice work! Yep the ground wires can cause all kinds of strange problems.
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Thursday, March 27th, 2025 AT 8:47 AM

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