no heat

[Fractured1]

Just a thought, could you have an airlock (air bubble) trapped inside your core you might want to try a flush kit (got mine from prestone) hooks into the heater hose and does away with any chance of air trapped.

[BlazerLT]

It is a pressureized system so airlock does sometime occur, but is more likely just a restricted core.

The internal coolant passageways in a heater core are actually very small and plug easily. Just remember to flush one way and then flush the other way so you truly clean the system.

Also, you might want to pick up a stronger flushing agent seeing the Prestone has been known to be a little weak.

[Joe Pavlack]

Check for a vacume leak, the vac. hoses are easy to follow from the soft ball size vac. resovour located on the hood. You can also see the vac. hose that enters the firewall witch operates the heater doors, this is the hard shiney one. Also make sure that both heater hoses are hot. These hoses are the small hoses that enter the firewall from the engine to the heater core and not the larger radiator hoses. The heater fan should be on high when feeling the heater core hoses for heat. Also a temp guage reading between 25% to 50% should give you plenty of heat and you should be toasty warm. If one hose is hot and the other is luke warm or cool you probably have air trapped in the core. This is not rocket science.