The engine on my Ariens 926LE snowblower starts and runs just fine. When I start it, the wheels engage properly but the impeller & augur initially don't engage. After a couple of minutes they seem to start working fine. Though occassionally even after running they will fail intermittently to engage.
The shear pins are fine. The cable running to the augur/impeller control is fine. I don't think it's an icing issue since I keep the snowblower inside the garage where it is mostly above freezing and I clean it out after each use. When the impeller and augur do finally engage they seem to have good, normal power both in the auger and the impeller.
Any ideas what could be wrong?