Question about 2000 Chevrolet Silverado 2500
*Note* I understand I say k2500 here and silverado in the classing. They are basically identical trucks, however I was only giving a choice up to '99 with the k2500 model.
My truck: 2000 Chevrolet k2500 (6.5L/396cu.in. diesel)
When the blower on my truck is set to "off" or "0", due to the air circulation set-up, the air will flow through the proper setting. The amount of air is relative to the speed I'm going.
The probably is however when I turn the blower on. It will blow through the proper vent (sometimes) for about 1/2 - 2seconds and then start blowing through the foot setting and through the side window defrosters (located on the sides of the dash).
I did a little bit of "debugging" so-to-speak and also concluded:
- If I turn the A/C on, the light that says it's on will light up properly until I turn the blower on. The light will go off. I can't say if this affects the actual A/C or not as I don't really drive around with my A/C in mid winter.
- The re-circulate button does not light up at all.
Other key things:
- My truck does have a vacuum set-up.
- I have looked at some other questions that say a vacuum hose has broken or "sprung a leak" but none of them ask about the A/C or air re-circulation
My question, is this also a related problem to a vacuum hose breaking? If so, is there a certain diameter of tubing I need or does it vary from vehicle to vehicle?
It doesnt sound like a vacuum problem to me. it sounds like your switch in the dash has gone bad. if it was a vacuum it would only affect you selecting which vents you want the air to come out of.
Posted on Mar 14, 2009
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