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#1 |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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How to clean out air system?
Everytime I turn on my air in my truck (70 c10) I get a little blast of broken up leaf particles that comes up from the defrost and they fall everywhere inside the cab. Where are they coming from? I know there is no cabin filter in these trucks.. but how do I clean the system out? Thanks!
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#2 |
Registered User
Join Date: Sep 2008
Location: Mobile, Al.
Posts: 687
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Re: How to clean out air system?
Around here on the central Gulf coast we have live oaks and those leaves get in everywhere. The cowling vents in front of your windshield is where they get in, then they move outboard and down the inside of your fender to the inside vent. When you open it old leaf pieces blow in on you. I suggest removing your cowl take a air hose and with your vents open blow what you can out then try with them closed; that duct continues trough out the bottom of your truck. You'll need to remove the fender to do a better job. Do both sides and if air doesn't do it try it with your water hose, rain goes down it all the time.
I installed a screen under my cowling to try to keep the majority of those leaves out. |
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#3 | |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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Re: How to clean out air system?
Quote:
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#4 |
Registered User
Join Date: Apr 2000
Location: Bonne Terre, Mo
Posts: 3,005
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Re: How to clean out air system?
Sounds like over the years you have accumulated leaves in the chamber behind your heater blower. Not likely you will have an easy fix getting access to the areas without getting deep. Anyone who has done some serious work on their cab has had that area needing attention. The screen idea will help prevent more unwanted guests but you really need to look seriously at getting deep into the area of where all the junk as accumulated over the past 50 years. Look at my pic in the far left where the fan blower n heater would be mounted. Most likely your debris is inside that area and is the culprit.
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'69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629" |
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#5 | |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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Re: How to clean out air system?
Quote:
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#6 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,513
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Re: How to clean out air system?
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Remove the fresh air doors in the kick panels and vacuum and blow the debris out. That won't get all of it but it may help. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#7 |
Senior Member
![]() Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,848
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Re: How to clean out air system?
yup i took off the vent doors in the kick panals and blew air in there ffrom the compressor then got the wet dry vac and sucked out everything i could. it takes about 5 tries on each side to get most of it
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1967custom |
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#8 | |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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Re: How to clean out air system?
Quote:
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#9 |
Registered User
Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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Re: How to clean out air system?
I use a leaf blower
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#10 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: How to clean out air system?
I've always just opened up both vents and got 'er up to 75 on the highway. I would recommend having the windows down...
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#11 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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I always took the fan motor out. 4 screws and open the truck up and blow through the motor opening. Then vacum out anything I can get to. pretty simple process. Jesse way works pretty good to but I would suggest googles when you do it!
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#12 | |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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Re: How to clean out air system?
Quote:
i will be sure to where my "googles" ![]()
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#13 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: How to clean out air system?
Look under the hood. On the black box on the PS, the box is fiberglass with a metal circular motor hanging out of it... that's it...
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#14 |
Registered User
Join Date: May 2012
Location: Raleigh, NC
Posts: 639
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Re: How to clean out air system?
thanks!
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1970 Chevy C-10 Stepside My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=528167 ![]() |
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#15 |
Senior Member
![]() Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,848
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Re: How to clean out air system?
when you vacuum, try to get a smaller diameter hose so you can shove it in the vent hole. blow from the cowl, heater motor opening and the kick panal holes themselves. its gonna take a few tries to get most of it out.
ive heard of people flushing them out with a hose too
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1967custom |
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