|
When you reinstall the intake manifold, did anything change? I've rolled over the intake manifold gaskets during installation (vacuum leak) before and it'll run for a few seconds then shut off. Removing and correctly installing those gaskets usually does the trick, if not a leak there, there is a leak somewhere else, loose fitting, hose, etc. in the air intake system.
You can use brake cleaner to find vacuum leaks...but do so at your own risk because it is flammable.
Are you sure this is capped off and sealed 100%?
__________________
2020 GMC Canyon Denali Duramax, 2021 Forester Sport, 2000 Subaru Legacy B4 RSK 5MT (JDM Import) and random 86 chassis rebuilds....
|