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Evaporator Cleaning IF THE IMAGE IS TOO SMALL, click it. This truck was bought used with working A/C, but it didn't blow very hard. After a few months, it got bad enough to diagnose. The first step is to simply remove the 2 screws for the resistor plate, and look in the evaporator case. This one looked bad, so 4 more screws were removed to pull the blower motor. It was too filthy to clean in-place, so a few more screws were removed, making it possible to lift the evaporator out of its box while the refrigerant system is still pressurized. The fins were brushed, vacuumed, & blown dry, then hosed out backward. The accessible ducts and the squirrel cage were also cleaned before re-assembling everything. It now blows like a modern vehicle, for just a couple hours of work, without any special tools, or replacing any parts. See also:  .  .  .  .  .  .  .  .  .  .  .  To prevent it from happening again, read this & the NEXT 9 pages:  GO TO THE NEXT SEVERAL PAGES... |
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![Evaporator Cleaning
IF THE IMAGE IS TOO SMALL, click it.
This truck was bought used with working A/C, but it didn't blow very hard. After a few months, it got bad enough to diagnose. The first step is to simply remove the 2 screws for the resistor plate, and look in the evaporator case. This one looked bad, so 4 more screws were removed to pull the blower motor. It was too filthy to clean in-place, so a few more screws were removed, making it possible to lift the evaporator out of its box while the refrigerant system is still pressurized. The fins were brushed, vacuumed, & blown dry, then hosed out backward. The accessible ducts and the squirrel cage were also cleaned before re-assembling everything. It now blows like a modern vehicle, for just a couple hours of work, without any special tools, or replacing any parts.
See also:
[url=http://www.supermotors.net/registry/media/309100][img]http://www.supermotors.net/getfile/309100/thumbnail/52evap.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/931423][img]https://www.supermotors.net/getfile/931423/thumbnail/evapdirt.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/512260][img]https://www.supermotors.net/getfile/512260/thumbnail/accontrols9296.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/883867][img]https://www.supermotors.net/getfile/883867/thumbnail/acboxout.jpg[/img][/url] . [url=https://www.supermotors.net/vehicles/registry/media/769742][img]https://www.supermotors.net/getfile/769742/thumbnail/02casescrews.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/724416][img]https://www.supermotors.net/getfile/724416/thumbnail/tsb950615acwhistle.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/724419][img]https://www.supermotors.net/getfile/724419/thumbnail/tsb950716blowerice.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/491916][img]https://www.supermotors.net/getfile/491916/thumbnail/acdiagnosis.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/724438][img]https://www.supermotors.net/getfile/724438/thumbnail/tsb951110accables.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/665548][img]https://www.supermotors.net/getfile/665548/thumbnail/tsb961307hvaccable.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/724076][img]https://www.supermotors.net/getfile/724076/thumbnail/tsb911505acswitchodor.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1168496][img]https://www.supermotors.net/getfile/1168496/thumbnail/blowerrepairs.jpg[/img][/url]
To prevent it from happening again, read this & the NEXT 9 pages:
[url=https://www.supermotors.net/registry/media/947911][img]https://www.supermotors.net/getfile/947911/thumbnail/22screen.jpg[/img][/url]
GO TO THE NEXT SEVERAL PAGES...](https://www.supermotors.net/getfile/1172375/fullsize/evapclean96f150.jpg)