Question about 2006 Dodge Ram 3500 Truck

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2006 Dodge Ram 2500 Truck Air conditioner high pressure to high and low is on the boarder line of being to high. I supect high pressure valve not working right. do i have to evacutate the system to change. Thank you Peter E Shufelt Senior Mechanic DPW Hudson NY>

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What valve? whats the history, was it recharged? is the condenser fan operating? what are the pressures? what is the ambient temperature?

Posted on Sep 01, 2010

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My ac compressor doesnt turn on on my 2000 dodge ram 2500 5.9 diesel truck.


Make sure you are even getting power through your a.c. switch on the console. That sends power to the main relay and through the high pressure and Low pressure switch in series and then to your compressor clutch. Trace power through all of these and you will know which component is faulty.

Mar 07, 2015 | 2001 Dodge Ram 2500 Truck

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Where is the low pressure switch on my 2006 Dodge Ram Diesel


The low pressure switch would be around the air dyer system.

If line drier is cool on one side and warm on other you have a line restriction. Is compressor cycling on and off.?.. be careful jumping low pressure switch...The high pressure on low side is restriction going to evaporator coil in firewall... check for a filter in cab for evaporator coil it may be stopped up

May 16, 2014 | 2006 Dodge Ram 2500

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2006 dodge 2500 code P0533 How do i fix


P0533 A/C Pressure Sensor High.

It could be low on refrigerant, or it could be a bad sensor. Back-probe the pressure sensor connector (on the discharge line, near the compressor - it's a 4-way connector) on the dark blue wire with the engine running and the A/C turned to max. If you get no volts, or 5 volts, the sensor is bad. 4.5 volts indicates a properly-operating system, while less than 4.5 indicates low pressure, and anything above indicates high pressure. If low or high pressure is suspected, verify with a set of refrigerant gauges.

If warranted, the sensor can just unscrew. You won't lose refrigerant - there's a valve built in to the line to prevent that. Make sure to use a new O-ring and lube it with the proper oil if you do change the sensor.

Sep 09, 2010 | 2006 Dodge Ram 2500

1 Answer

What causes P0533 & P0532 trouble codes on 2006 Dodge 2500 SLT air conditioner. The codes are for too high of voltage & too low of voltage for the A/C sending unit. So my compressor pump clutch...


P0533 A/C Pressure Sensor High.

It could be low on refrigerant, or it could be a bad sensor. Back-probe the pressure sensor connector (on the discharge line, near the compressor - it's a 4-way connector) on the dark blue wire with the engine running and the A/C turned to max. If you get no volts, or 5 volts, the sensor is bad. 4.5 volts indicates a properly-operating system, while less than 4.5 indicates low pressure, and anything above indicates high pressure. If low or high pressure is suspected, verify with a set of refrigerant gauges.

If warranted, the sensor can just unscrew. You won't lose refrigerant - there's a valve built in to the line to prevent that. Make sure to use a new O-ring and lube it with the proper oil if you do change the sensor.
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Jul 08, 2010 | 2006 Dodge Ram 2500

1 Answer

What should the high and low side freon pressure be on a 2006 dodge ram 2500 diesel?


The re-fill kit for the r-134 will only fit on one of the sides. You want to fill the low pressure side, but be sure you have a gauge not to overfill. he high pressure will be the larger side. But the gauge will only fit on one of the inlets for safety precautions.

Jun 07, 2010 | 2006 Dodge Ram 2500

2 Answers

06' dodge 3500 5.9 cummins will not start unless you spray it with starter fluid and when it starts it has some black smoke and some white smoke try to accellarate and it will stay high.


not sure if it has anything to do with it but my ford diesel did the same thing and it was because my oil was low. the oil pressure ran my injectors. dont know if dodge is the same way. also my air filter needed replced. Good luck!!

Apr 27, 2010 | 2006 Dodge Ram 3500 Truck

1 Answer

Recharge ac run bypass


more like run a bypass on the low pressure switch

Mar 21, 2010 | 2005 Dodge Ram 2500 Truck

1 Answer

Where is the low pressure line to add r134a to a 1997 dodge ram


The low pressure line is the larger of the two lines and i believe the low pressure line has a blue cap on the valve, and the high pressure valve has the black cap on it. 
Follow the two lines from the compressor, the line that goes to the condenser (to the front of the truck) is the high pressure line. The other line that comes from the firewall is the low side and will have the refill port with a blue cap on it.
Good luck and hope this help. There should also be a sticker somewhere in the engine bay to the amount of R134 should be in the system.

May 29, 2009 | 2004 Dodge Ram 2500

1 Answer

2002 dodge ram truck


The check valve on the fuel line at the filter housing may be leaking back not maintaining pressure when the engine is not running.

Nov 08, 2008 | 2001 Dodge Ram 2500 Truck

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