Question about 2001 Dodge Grand Caravan

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AC compressor: 2001 Dodge Grand Caravan Sport Is there a reset or a way to jump the compressor after adding the R-134a? Or do I just replace the compressor completely?? $$$

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It will normally come on by itself once you add the 134a if doesn't come on by itself I'm thinking you have a bad pressure swith in which is locacted in the A/C line in itself up on the passenger side by the firewall you can uplugged it there and jumper the 2 contacts together if the compressor kicks on it is either a bad pressure switch or there still isn't enough 134a in the system.

Posted on Apr 02, 2009

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2001 DODGE GRAND CARAVAN 3.3; AC DOES NOT WORK. AC COMPRESSOR REPLACE 3 TIMES, BUT IT BUILDS UP TOO MUCH PRESSURE, RELEASES THRU THE BACK OF COMPRESSOR.


Then there was no reason to replace the compressor
unless it broke down & spread debris into the system
Just poor or no diagnosing of the issue
You have high side pressures that caused the valve to release
Need to study why it happens & where the system blockage is
Did the first compressor burn up & trash the system?
If so then any competant shop know all the componets have
to come out & be flushed or maybe replaced
I would say you have a $1500 job just for starters to redo the
job correctly now 3 compressors went on for no reason

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Replaced the compressor in my 1999 Dodge Caravan. The pulley failed on the old one so I bought a new compressor with clutch. I recovered the R-134a and replaced the compressor. I recovered 1 oz of old from...


the new compressor was likely shipped pre oiled. it should have had a tag on it saying if it was oiled or not, and how much. if you added more oil, the system has probably been over oiled and hydro locked. recover the refrigerant again, if you are working with an actual automotive a c machine you should be able to draw that extra oz of PAG oil out, then recharge refrigerant. hopefully that will do it! otherwise, you could have a restriction in your system, possible from debris in one of the compressors, in which case you will need to flush the lines out. good luck!

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Took my 2001 dodge grand caravan in to have compressor replaced, it was going out. Ac worked great before it went in, now they have replaced the compressor, dehydrator,expasion valve etc. Now it blows hot...


Check your A/C heater controls at the dash, it is not controlling the opening and closing of doors inside your dash, it might need to be replaced or some rods or levers got accidently disconnected when they were installing the Expansion Valve. The shop that repaired your A/C is responsible for making sure everything is working properly.

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Dodge Grand Caravan Sport 2001 Location of PCM


it is located on driverside behind front headlight next to radiator. fuse/relay box is just behind it

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you should be adding the 134a to the system the low pressure switch is doing its job by not allowing the compressor to kick on, it wont kick on until there is enough 134a in the system to be above the preset pressure for the low pressure switch.

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I need to recharge the 134A A/C dual system in a 1999 3.3 litre Dodge Grand Caravan. Most if not all of the oil was probably lost when the van hit a deer. The high side line was broken as was the...


Most of the oil should be in your compressor, if the compressor was not damaged and not replaced you should be ok on oil other than recharging it with a 134 w/oil. That should be sufficient. Usually there is about 8 oz put directly into the compressor when replaced. In that vehicle I believe it should alos be recharged with 32 oz. of freon.

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1 Answer

Horn inop 2003 grand caravan


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The horn is under the hood very near the front grill on left or right side.

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