engine intake exploded

[pumazavr]

the inlet to the engine blew up 2 times on start up. why? the injectors have been checked. The evap valve has been replaced.

The most interesting thing is that after a night it starts up with a half kick, and after warming up and idle from 15 minutes to 3-4 hours, the starter turns for 4 seconds, then it just grabs, that is, benzine vapors accumulate on a hot

[FIREM]

Wow that's nuts. Gas vapors must be accumulating in the plenum but where are they from?
Leaky Injector, Evap Purge line, EGR, ? Any misfires ?
Gasoline only not dual fuel or Propane?
Compression test and leak down test, blowing back from leaky intake valve?
Lots to check

[pumazavr]

Wow that's nuts. Gas vapors must be accumulating in the plenum but where are they from?
Leaky Injector, Evap Purge line, EGR, ? Any misfires ?
Gasoline only not dual fuel or Propane?
Compression test and leak down test, blowing back from leaky intake valve?
Lots to check

So we have a Chrysler 300m 3.5 engine of 2004, once again in frost -9 at startup, the intake manifold was already torn 3 times. The injectors were checked (there are new ones), the evap system was checked, the timing belt, compression were checked, the diagnostics did not show any errors.
Train put the car, after 3 hours was going to go, started to turn the starter and after 1 second cotton