Engine will start but will only idle for a few seconds then shuts off

Vehicle had been sitting for a few months, got in it and heard belt screeching for a second. Started out fine then engine bogged down and stopped. Got it back to my garage and found the filters had been plugged up with dog food rats had stored in it. Cleaned air filter compartments, appeared nothing had gotten past the air filters, but now vehicle will not run. It will only idle for a few seconds then shuts off. It seems there is not any exhaust coming out tailpipe.