Question about 2001 Nissan Sentra
Just replaced the compressor and high pressure line (& dryer), pulled vacuum and held it (no leaks), recharged system but compressor & fans will not turn on now. There is also no high pressure, just low pressure. Even with the engine off there is still zero high pressure, so I'm assuming the pressure switch is not letting the system turn on because there is no pressure.
Before I installed it I filled the compressor with PAG100 oil, and 3oz was all I was able to get in. Is this oil preventing the freon from circulating and causing a blockage? Why would I be getting zero high pressure?
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Posted on Jan 02, 2017
Sounds like your ballast resistor is out for the blower motor. You said that you only had 1 speed or off when you turned the fan on. The fan's speeds are made possible by a separate resistor installed on the heater box. The dash switch itself will only work at one speed when the resistor isn't functioning; and eventually the switch will burn out too. The resistor is much easier to change out than the blower motor was, and cheaper too. You can find it on the heater core/blower box by the passenger side footwell You can order the resistor for around $25.00 from a Nissan dealer, the switch itself costs about the same, verses around $90 for the blower motor.. It took me all of 20 minutes to change them out in my Nissan. I really hope you kept your receipt for the new blower motor, because it was probably fine. I'm not sure what you mean about the automated seat belt fuse. I know there is a sensor in each seat that causes the seatbelt indicator light to flash until you plug the belt in. There are 2 wiring harnesses, one for the seat that can tell when weight is on the seat, the other one shuts off the dash indicator when you plug the belt clasp in. Good luck...
Posted on Jul 06, 2008
could be the switch. did you do anything to the switch when you changedheadlamps? maybe you put the lamp in incorrectly also did the brights work on the lamp that was "burned out"?
Posted on Jan 29, 2009
Could be some thing as simple as a leaking filter, drain plug, or oil pressure sending unit. If it hasn't been in for an oil change lately, take it in, mention you have seen drops on the driveway, the tech will likely note the leak and possible solution. From this you can determine the cause and cost.
Posted on Apr 14, 2009
the 2001 altima is what i have and I had the same problem as you. turned out to be a bad head gasket factory used cheap ones for a few years before they found the problem. one way to test this is to get a can of carborator cleaner and spray it around the area where the head meets the block under the intake problem should be around the 4th cylinder or close to driver side. if the head gasket is bad the rough idle will smooth out while you are spraying the head.
Posted on Aug 06, 2009
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