Engine Shut Down
Thread Starter
1st Gear
Joined: Oct 2019
Posts: 1
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Engine Shut Down
I have a 2008 LS3. When it is driven in hot weather (90 degrees +) the engine will shut down for 10 to 15 seconds and start back up on it's on. After about 1 to 2 minutes it will shut down again. Manual transmission, leaving the clutch out. it will do this until you park it and shut it off. It has been tuned. It leaves no codes for diagnostic tech to correct. Any ideas would be helpful.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,615
Likes: 4,062
From: Cape Coral, Florida
With heat comes electrical resistance...I'd take it to a Tech that has a DSO (scope) and hook it up and see what's dropping out....maybe fuel pressure, crank sensor signal etc...
