AC slowing going from defrost to dash - Ford Powerstroke Diesel Forum

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post #1 of 5 Old 08-28-2011, 03:17 PM Thread Starter
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AC slowing going from defrost to dash

In this Texas heat, my AC is more important than ever. It is taking longer to switch from the defrost to the dash and it also seems to not get as cold. I put a can of freon in it yesterday, cools better than it was, but just not as cold as it was. Is there something I can check to fix this? I could sure use some help and pointed in the right direction. Thanks
Dan
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post #2 of 5 Old 08-28-2011, 06:25 PM
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I think you have a vacuum leak or your little electric vacuum pump is on it's way out. Defrost is the default postion when there is no vacuum at all. Check the vacuum hoses from your auto hubs first.

SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.
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post #3 of 5 Old 08-29-2011, 08:08 AM
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It's a vacuum issue. Either a leak or twisted line. Check the one behind the glove box, it's known to be an issue

ERIC - Tennessee Powerstrokes Chapter Director

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post #4 of 5 Old 08-29-2011, 04:00 PM
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heater problems and i have a baby that i need to take in my truck


check out link #5 it should be all info that you need
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post #5 of 5 Old 09-12-2011, 07:24 AM Thread Starter
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I found that small grey vacuum hose had a small break in it. I replaced it, and now the AC kicks!!! This forum is great and I appreciate all the help I find here. Thanks again.
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