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Car Forum / Dodge / Dodge Trucks / March 2005Air Conditiong Compressor Noise I think.
I have a 1999 2500 4WD V8 and The air has stopped working. Pressure in System and I do not here the Click of the compressor when its turned on. So Ok they clutch is bad no news there. The Question is Do they make noise. Sounds Like a bad Valve tap only when I am driving and accelerate. Do they make this noise? Or should I look else where. Thanks Doug > I have a 1999 2500 4WD V8 and The air has stopped working. Pressure in > System and I do not here the Click of the compressor when its turned on. So [quoted text clipped - 4 lines] > > Thanks Doug I understood the part that says I have a 1999 2500 4WD...... but lost me here ........ System and I do not here the Click of the compressor when its turned on. So Ok they clutch is bad no news there. The Question is Do they make noise. Ok I will simplify the question. When the AC Clutch goes bad does it make any noise. For example does it sound like a valve tap when the accelerator is depressed. Doug > > I have a 1999 2500 4WD V8 and The air has stopped working. Pressure in > > System and I do not here the Click of the compressor when its turned on. [quoted text clipped - 11 lines] > > System and I do not here the Click of the compressor when its turned on. So > Ok they clutch is bad no news there. The Question is > Do they make noise. Suddenly, without warning, r392 exclaimed (3/5/2005 2:48 PM): > Ok I will simplify the question. > When the AC Clutch goes bad does it make any noise. For example does it [quoted text clipped - 25 lines] >>Ok they clutch is bad no news there. The Question is >>Do they make noise. Um. Dunno the answer to your question, but is it your AC or the entire heating system? There's a known issue, where the blower motor resistor will fail. This often causes just the first couple of settings on the fan control to not work, but the highest one will - for a while. Sometimes they all fail together. I've replaced two in the last 12 months. If you google this group for 'blower motor resistor' you can see if other's symptoms reflect your own... There were no special sounds when mine did this, except for the sound of silence which replaced the sounds of blowing air... jmc It is not the blower that works fine. <NOnewsgroupsSPAM@NOjodiBODY.HOMEus> wrote in message news:38ud4jF5poec1U1@individual.net... > Suddenly, without warning, r392 exclaimed (3/5/2005 2:48 PM): > > Ok I will simplify the question. [quoted text clipped - 39 lines] > > jmc >I have a 1999 2500 4WD V8 and The air has stopped working. Pressure in > System and I do not here the Click of the compressor when its turned on. [quoted text clipped - 4 lines] > accelerate. Do they make this noise? > Or should I look else where. Just because the clutch doesn't engage don't assume it's a bad clutch; have you checked for power and ground at the clutch electrical connector? The clutch engagement depends on a few switches. The compressor clutch pulley rides on a bearing when it's not engaged so it could make a tapping noise if the bearing is bad. low freon will cause the clutch to not engage. bill >I have a 1999 2500 4WD V8 and The air has stopped working. Pressure in > System and I do not here the Click of the compressor when its turned on. [quoted text clipped - 6 lines] > > Thanks Doug > low freon will cause the clutch to not engage. Yep. Pull the connector from the presure switch on the accumulator (skinny black cylinder-looking thing, about the size of a thermos, on the passenger-side, near the firewall), and short the pins in the connector (not on the switch - that won't help). Do this with the truck running, and the HVAC controls set to AC. If the clutch engages, you have a low freon charge (or a bad LP switch - but 99% of the time it's a low charge). |
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