Question about 2005 Chevrolet Silverado
I doubt its a relay.
The high blower relay only comes into play on the high setting. You have a 40amp fuse for the blower relay, then a 30amp fuse for the other speeds. The 30amp fuse powers the fan switch, when you turn it to high it activates the high speed relay.
I would check for power at the blower motor on all speeds.
Posted on Jul 11, 2013
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Posted on Jan 02, 2017
Chevy Trucks, Blazers, S10 pickup and the like will vapor lock ecspecially the 2000 models. Do not tighten the gas cap past 1 click. There is a tube that runs from the top of the tank down and this gets hot and collapses or burns in half. We just bought a reinforced rubber tube cut it to lengh and use it instead of part and it's worked grat for 2 years so far.
Posted on Feb 01, 2009
either something melted in the housing from the heater core or the blower motor went bad. It could also be that there is a crack somewhere in the ac line.
Posted on Jun 27, 2009
Testimonial: "something caught fire in the blower motor housing and caused the motor to seize up. causing a burning smell/smoke."
First check the coolant level if the engine is hot check the reserve jug on the firewall--if cold before start up remove the radiator cap and check coolant level add as needed. If the thermostat has been removed it needs to re-installed. It is possible that the heater hose(s) is stopped up. After letting it run for a period of time both heater hoses should be hot to the touch if they aren't something is restricting the flow of coolant the system needs to be drained and flushed. I have also see some vehicles form an air lock in the coolant system causing the same thing. It then needs to be (burped). This can be checked/done by removing the radiator cap while the vehicle is idleing and watching the water level in the radiator squeeze the upper radiator hose to see if the water/coolant level rises in the radiator. When you release the hose you may need to add some coolant this forces out the air. Hope one of these things. These are some of the cheapest fixes and if they don't work/help then you need to start looking at the heat control selector.
Posted on Dec 30, 2009
If you are absolutely confident the AC compressor is not kicking out on low pressure then it is the blend door actuator.
The blend door determines how much air blows through the heater core or evaporator.
The actuator can be purchased at dealer and maybe at a local part store.
Posted on May 27, 2010
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