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Air not working correctly

  #1  
Old 09-10-2018, 09:28 AM
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Air not working correctly

I just replace my blower motor resistor for the second this year I believe . This time the resistor didnít fix the problem completely. The ac never worked properly after I replaced the resistor the first time. Well it worked for a bout two weeks befor it started randomly shutting off. I would have to either wait for it to come back on or just keep turning it off then back on. Sometimes it would blow for the remainder of the drive others it would cut of within seconds. About a week ago now I noticed a burning smell followed by the ac shutting off and not coming back on. So I got on Amazon bought the ford part this time thinking that I just got a pos off brand resistor the first time, put it in yesterday and now the blower blows only on high, the air isnít cool and you canít change it to feet or defrost or anything. Any suggestions on what it might be now?
 
  #2  
Old 09-10-2018, 10:15 AM
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What are you working on? Can't see your truck through the Internet.......
 
  #3  
Old 09-10-2018, 12:16 PM
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Originally Posted by glc View Post
What are you working on? Can't see your truck through the Internet.......
2009 f 150 lariat Sorry about that!
 
  #4  
Old 09-10-2018, 12:17 PM
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Usually, when the blower only works on high its because the resistor has burned out. Is the compressor running? Is the high pressure refrigerant line hot and the low pressure cold?
 
  #5  
Old 09-10-2018, 03:54 PM
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Do you have the manual or the automatic climate control system? You really need to provide full and complete descriptions since, as was already noted, we cannot see your truck through the internet.
 
  #6  
Old 09-10-2018, 04:40 PM
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Itís the automatic dual zone system. Cooled seats work fine and are cold. Iím new to the forum and donít have a lot of experience so sorry for leaving off the details I appreciate the help! It feel like itís just blowing air from the outside and not conditioning it.
 
  #7  
Old 09-11-2018, 08:14 AM
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The compressor isnít running and both lines are average temp. Not hot or cold.
 
  #8  
Old 09-11-2018, 08:44 AM
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Well, now you have two problems: The blower won't work right and the compressor isn't running.

These advanced systems aren't as simple as the ones of days past. It's all computer-controlled and, if you don't have the required diagnostic equipment, service information, and background, it's pretty tough to do much more than guess as to what the problem might be.

As far as the lack of cooling, I "guess" the refrigerant might be low, the clutch gap may be excessive, the relay isn't working, there's a bad sensor, the computer isn't working right, or there's something else that's telling the computer to disable the system.

As for the high speed only issue, I "guess" the blower speed module or the DATC module is bad.

Since I don't know what diagnostic equipment you have, whether or not you have the service information or what you troubleshooting background might be, I guess that's about all I can offer.
 
  #9  
Old 09-11-2018, 08:51 PM
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Thanks! Check engine light came on on my what Home and now the o2 sensor is bad. Sensor 1 bank 1. Iím beginning to think I just need trade the truck in I was already saving up money to have the spark plugs replaced. I love the truck and it only has 135000 on it but Iím always have to fix something. I donít have a lot of equipment so Iím planning to just Javier it diagnosed by a local ac shop and maybe I can fix it my self if not oh well. I appreciate all the help!
 
  #10  
Old 09-11-2018, 08:58 PM
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I did notice today that itís definitely blowing the outside air. We had some rain showers come thru today and as I drove thru them and the outside temp dropped the inside also went down. I fell like maybe itís something electronic is there any kind of test I can do?
 
  #11  
Old 09-11-2018, 09:31 PM
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The oxygen sensor code may not be caused by the sensor. Something like a vacuum leak could cause a lean code. Post the exact code.
 
  #12  
Old 09-11-2018, 09:33 PM
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p0130
 
  #13  
Old 09-11-2018, 11:19 PM
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https://www.obd-codes.com/p0130

If it's running rough, the PCM may be preventing the compressor from running.
 
  #14  
Old 09-12-2018, 07:36 AM
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I didnít notice it running rough last night that was the weird thing. The only time itís acts up is when I really get on the gas. It will lose all power and shakes real bad for a few seconds. It has throw a code that said Clynder 7 was fouling.
 
  #15  
Old 09-12-2018, 09:23 AM
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Exact code again, please.....
 

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