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Ford F-150 Question

K

KillyKillall

Diamond Member
Thank you in advance for your insight into this issue:

I have a 1998 Ford F-150 which I had to replace the battery last night. The change went smooth and it was actually the easiest one I've ever done. On the test drive after, I noticed that all air conditioning (no matter where the setting was: panels, foor, etc...) was blowing through the defrost vents. I checked and couldn't see any hoses or anything that had been moved or knocked off.

I know that some of the newer vehicles operate electrically with AC and the older ones with vaccuum. Is it possible that a fuse controls this and blew out and caused this? Any ideas? I've never seen this occur before.

Thanks again in advance for all help offerred.
 
hummm

don't know if this is much help but on my 93 mustang I had a vacuum hose break off and did exactly what you said. It was located on the drivers side near the windshield, in the engine compartment. Consisted of 3-5 other different vacuum hoses hooked up to a bracket. Each had a label. AC was labeled AC 🙂 Follow the AC line to see if it's correctly attached.

check and see if you have something similar. if not all i can suggest is picking up a manual at your local autoparts store.
 
well if you want to check fuses open your manual find the right(or may say in teh fuse box) fuse pull it out and see if its still ok.
 
That would be great, minus the fact that the truck has been broken into 3 times and last time they took the manual. Those bast*rds. I'll look it up online and check the hoses. Thanks guys. If anyone else has anything to add, please don't hesitate.
 
A rule of thumb is, if something electrical doesn't work check the fuses first and then the components. If the fuse for the controls is blown, it would explain the air being stuck on the defoger setting.
 
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