Hey guys I think my hydroboost isn't working correctly. I was on the road going about 45mph and put the truck in neutral. I then stepped on the the brake a few times to deplete the reserve canister for the hydroboost. As expected the brake pedal became hard and the pedal force required to stop the truck was hard. I then started the truck while still in neutral and put it in drive. I drove down the road at 45 for a half mile or so. Then came up to a light and needed to stop but the hydroboost brakes wouldn't work at all. It was as if the reserve was depleted but this time the engine was running. I was unable to find anything similar to this scenario while reading online troubleshooting steps. I am left scratching my head on this one. If anyone can help or point me in the right direction that would be great.