Bigkevschopshop
Full Access Member
Its summer, the heat is in full swing in August here in Texas... So, I had my truck checked and recharged about 3 weeks ago.. it worked great... did a 500 mile weekend in the ole 12 burb... So earlier this week, my ac started not to want to blow cold and the clutch was cycling like it was preventing freeze up or something. So at least it wasn't the dreaded blend door crap. I searched and searched, some say pressure switch, some say aspirator... But I didn't think it was the pressure switch but still not 100% sold on it.
So I have heard the aspirator inside the truck can get clogged, dirty, etc... IT's basically a MAF style sensor inside the truck with a fan to bring air over it. I remembered that mine made some high pitch buzzing sometimes, very light and hardly noticeable but my range of hearing is pretty high and low.. Was thinking yesterday that I haven't been hearing what I normally do, maybe its because the fans been higher... So I saw my computer duster sitting on my desk... Decided, hey why not see if my ride home actually gets better than 60-70 degrees out of the vents...
SO you know that little round microphone hole above your head in the drivers seat...
YEAH the one everyone tries to talk into when someone can't hear them... That's the aspirator for the climate control... So few good hits with the air duster, then fire it up and hit it a few more times, now its quiet as hell but will hold a small piece of paper up to it so the fan is working.
Hit it with the tube on, do not angle can just use the tube to direct in through the grill, about 1/4" to 1/2" away at first, then you can go up to 1/8" this allows the fan to get some spin and not be shocked by a huge flow, at least that was my thinking.
AC starting cooling normal on the ride home... But was blowing that VAPOR COLD GOLD...My vent temps on recycle and on blower 3 was 45-47 and outside temp was 102 on the display.. Blower all the way up only pushed us into the low to mid 50s... I was able to turn the blower down to 3-4 the whole ride home like i used to do... This is a 35 mile trip every day in the great ole Houston, so its an hour drive... Did a test and with it being 102 out, on outside air I was pushing about 58 degrees out the vents on high...Id say its working.
So hopefully this little hit of compressed air fixes the issue, I may need to do an aspirator soon but I figured I may as well share a bit of interior maintenance, or helping you get ac blowing better on a bad day... So its only a day into the fix but this morning I had about 45 vent temps on the way to work, never went off like it had all week...
So far just a couple shots of compressed air duster saved my big ass from being sweaty and pissed...
So I have heard the aspirator inside the truck can get clogged, dirty, etc... IT's basically a MAF style sensor inside the truck with a fan to bring air over it. I remembered that mine made some high pitch buzzing sometimes, very light and hardly noticeable but my range of hearing is pretty high and low.. Was thinking yesterday that I haven't been hearing what I normally do, maybe its because the fans been higher... So I saw my computer duster sitting on my desk... Decided, hey why not see if my ride home actually gets better than 60-70 degrees out of the vents...
SO you know that little round microphone hole above your head in the drivers seat...
YEAH the one everyone tries to talk into when someone can't hear them... That's the aspirator for the climate control... So few good hits with the air duster, then fire it up and hit it a few more times, now its quiet as hell but will hold a small piece of paper up to it so the fan is working.
Hit it with the tube on, do not angle can just use the tube to direct in through the grill, about 1/4" to 1/2" away at first, then you can go up to 1/8" this allows the fan to get some spin and not be shocked by a huge flow, at least that was my thinking.
AC starting cooling normal on the ride home... But was blowing that VAPOR COLD GOLD...My vent temps on recycle and on blower 3 was 45-47 and outside temp was 102 on the display.. Blower all the way up only pushed us into the low to mid 50s... I was able to turn the blower down to 3-4 the whole ride home like i used to do... This is a 35 mile trip every day in the great ole Houston, so its an hour drive... Did a test and with it being 102 out, on outside air I was pushing about 58 degrees out the vents on high...Id say its working.
So hopefully this little hit of compressed air fixes the issue, I may need to do an aspirator soon but I figured I may as well share a bit of interior maintenance, or helping you get ac blowing better on a bad day... So its only a day into the fix but this morning I had about 45 vent temps on the way to work, never went off like it had all week...
So far just a couple shots of compressed air duster saved my big ass from being sweaty and pissed...
Last edited: