Supermutt Posted August 18, 2023 Share Posted August 18, 2023 ok, I realize I should know this but…. Does a 96 DM688 have a cabin air filter and if so what is the location ? Just recharged my AC and it’s working again but not blowing well. So filter could be one item along with duct doors etc. Thanks for any help ! Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/ Share on other sites More sharing options...
Joey Mack Posted August 18, 2023 Share Posted August 18, 2023 I bet the core is plugged with dirt. Pull the duct work back and blow the dirt out. It can "try" your patience. There's no filter that I know of. But I not knoweth everything 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537245 Share on other sites More sharing options...
tjc transport Posted August 18, 2023 Share Posted August 18, 2023 no cabin air filter. as Joey said, the core is probably dirty. it is trying on your patience, but can be cleaned. and once you have the box open enough to see the core, you will be amazed at how dirty it is and that it even worked at all. 1 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537248 Share on other sites More sharing options...
Supermutt Posted August 18, 2023 Author Share Posted August 18, 2023 Thanks guys, I appreciate it !!! Makes sense because you can hear the fan motor running strong on high but it sure isn’t pushing the AC out like high. 104 here yesterday. 🥵 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537250 Share on other sites More sharing options...
tjc transport Posted August 18, 2023 Share Posted August 18, 2023 After cleaning the core, my 99 went from high fan barely keeping the cab cool to almost freezing me out of it on low 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537254 Share on other sites More sharing options...
Popular Post MACKS Posted August 18, 2023 Popular Post Share Posted August 18, 2023 (edited) Just a few weeks ago my wife caught me going out with my battery operated water pick..lol after soaking the core with spray nine I used the water pick to wash it all out,worked great,u need to straighten out the fins also if there bent over,they make a comb for just that,as said above huge difference.. Edited August 18, 2023 by MACKS 1 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537258 Share on other sites More sharing options...
Joey Mack Posted August 18, 2023 Share Posted August 18, 2023 I made a cardboard tube about a foot long, and flattened it, wrapped it. With duct tape, and cut a slot in the side of one end, and formed the other end over my shop vac hose. Then all I had to do was sneak the duct back and inch with wooden wedges. Then one hand had a light and the other had the sucker. An occasional blast from a blow gun helped also. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537259 Share on other sites More sharing options...
Popular Post Supermutt Posted August 19, 2023 Author Popular Post Share Posted August 19, 2023 Not sure, but I may have more enthusiasm to do an inframe versus cleaning this out lol. 1 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537332 Share on other sites More sharing options...
Joey Mack Posted August 19, 2023 Share Posted August 19, 2023 1 hour job.... top's 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537333 Share on other sites More sharing options...
mechohaulic Posted August 19, 2023 Share Posted August 19, 2023 13 hours ago, MACKS said: Just a few weeks ago my wife caught me going out with my battery operated water pick..lol after soaking the core with spray nine I used the water pick to wash it all out,worked great,u need to straighten out the fins also if there bent over,they make a comb for just that,as said above huge difference.. now be truthful here did you really use YOUR water pick or wifes. LOL 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537336 Share on other sites More sharing options...
mowerman Posted August 20, 2023 Share Posted August 20, 2023 OK that’s just hilarious. And yes I would’ve thought they had a cabin filter. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73187-1996-dm688s-cabin-air-filter/#findComment-537392 Share on other sites More sharing options...
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