Does a 1998 Chevy pickup have a cabin air filter?

Our research indicates that your vehicle does not have a cabin air filter (also known as a pollen or AC filter). Vehicles without cabin air filters typically have a plastic mesh that prevents leaves and other foreign objects from entering the HVAC system.

What was the a / C problem on my 1998 Silverado?

One day last year, I started my 1998 C-1500 350 2WD, and surprise – the a/c blew hot air. I said a bad word. I only use the truck to go to the lumber yard, so I just let it be – until today, when it was 98F and I got stuck in a 10-mile traffic jam (I said many bad words).

Why does my Silverado Sierra not have a fan?

I only use the truck to go to the lumber yard, so I just let it be – until today, when it was 98F and I got stuck in a 10-mile traffic jam (I said many bad words). Dashboard switches appear normal, but a/c clutch does not engage. (Is this properly called a “cycling switch”?) Do not know whether the fan switch was on or off when tested.

Why is my C-1500 AC not working?

If it’s low enough, the compressor will not even kick in. Just a thought before you start tearing things apart. Thanks. I only have an old R-12 gauge set, so I can’t actually test the refrigerant level.

Is the a / C clutch on or off on a 1998 Silverado Sierra?

Dashboard switches appear normal, but a/c clutch does not engage. (Is this properly called a “cycling switch”?) Do not know whether the fan switch was on or off when tested. Not sure what the function of the relay is – perhaps it closes when the fan switch is on? Will check tomorrow morning.

Why does AC stop blowing out the defrost vents?

After installing a new blower fan motor the ac would only come out the defrost vents. The factory vacuum check valve is very hard to get to. So i bypassed it. Now it is working like it should and ac comes out the dash vents. I do not have a vacuum reservoir installed i will have to see if i will need to add it later.

Where are the vents on my GMC Sierra?

No output on dash face vents or defrost vents but floor works ok. I have tried the pulling the fuses both under hood and left of dash but that did not fix my problem.

Why is there no air coming out of the vents?

This should cause the control head to go through a sync mode with all the output devices (mode, recirc, etc.). It’s a long shot, but sometimes those control heads go out of sync for no obvious reason.