Model: Crown Vic
This is in regards to a conversion from R12 to 134-A (1986 Ford Crown Victoria)...here's the story.
After reading information on the internet concerning converting an A/C system from R-12 to 134-A, I began realizing that in order to do the job correctly...the entire A/C system must be flushed completely, all hoses changed, the dryer replaced, etc.
Now, I relayed this information about conversions to my brother...the owner of the Crown Vic...but, he refused to listen to anything I had to say. What I know thus far, is that he had a mechanic...wouldn't call this guy an A/C guru...replace the evaporator, the A/C fittings were changed (larger), and I also believe a USED A/C compressor was installed...the original compressor ceased functioning prior to the conversion...someone talked him into ADDING stop leak to the sysytem because they said the evaporator had a leak and it would cure the problem.
Here's what has occurred following the conversion...the first thing he noticed was that the air VENTS in the cabin (this car has 4) no longer were blowing evenly...in other words, the vent 3rd over from the driver was blowing rather strongly, and the other vents were hardly putting out any force of air. He also noticed that when coming to a stop sign, or stop light...the cabin became quite warm...felt colder A/C air coming from the vents when the cars was in motion (40-60 MPH). He also noticed that on a chilly evening (50 degrees Farenheit)...with the SELECTOR set to VENT and the other selector set to the COLDEST setting...that there was warm air coming from the vents rather than cold air.
Can anyone shed any light on what is occurring? With the vents NOT emitting the same amount of air strength & heat being felt on a 50 degree evening (with the selector in VENT mode and the temp selector set to the coldest setting) does this sound like a vacuum issue? Could this mechanic have re-wired something he shouldn't have?
I'd appreciate if someone can assist in these issues...thank you!
Jack up the radiator cap and run a new car under it. Grins!!! Too many mistakes here. First was using sealer and second was used compressor. Without pressures, we can't begin to help you. One of the most commom problems that arise when stopping at traffic lights is because fan clutches are bad. Stop leak is the worst thing to add to an AC system. I walk away really fast when I come across a vehicle that has magic in a can.
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