What should the gauges read on a Jeep Cherokee?
Look at the gauges. They should read 29 to 30 lbs. on the low side and at least 150 on the high side (with the engine off). If they are lower and the compressor did not come on, then it is undercharged and needs Freon to make the low side switch come on and activate the compressor.
What should the AC read on a Jeep Cherokee?
They should read 29 to 30 lbs. on the low side and at least 150 on the high side (with the engine off). If they are lower and the compressor did not come on, then it is undercharged and needs Freon to make the low side switch come on and activate the compressor. Start the car and turn the AC on.
Why does my pressure gauge not read the same?
If the gauges don’t read the same during a static pressure test, it means: 1) You haven’t waited long enough for the pressures to equalize, or 2) The orifice tube, expansion valve, compressor reed valves or stuck or there’s a severe restriction somewhere in the system that’s preventing the pressure from equalizing.
What does a manifold gauge on an AC mean?
A manifold gauge set measures refrigerant pressures inside of an air conditioning system. An automotive air conditioner has a high and low side, divided by a metering device and the A/C compressor.
If the gauges don’t read the same during a static pressure test, it means: 1) You haven’t waited long enough for the pressures to equalize, or 2) The orifice tube, expansion valve, compressor reed valves or stuck or there’s a severe restriction somewhere in the system that’s preventing the pressure from equalizing.
How to test AC pressure with a manifold gauge?
How to test AC pressures with a manifold gauge. 1, Set the AC controls to MAX and RECIRCULATE 2. Blower set to HIGH speed 3. Close the doors. Windows can be open. 4. Once you attach your gauges and start your engine, keep RPMs steady at around 1,200 to 1,500 RPM. Refer to this chart for AC pressure gauge diagnosis. What the AC gauge pressures mean
What should I do if my gas gauge is not working?
Note that some self-test steps may stop the gas gauge at 1/4, 1/2, and 3/4, as well. Fuel sender test. The fuel sender test should be conducted when the tank is lower than HALF, to prevent fuel splashing. Start by making sure the plug is clean, dry, and free of corrosion. Make sure the pins are straight and that the connector is fully seated.
What’s the temperature on an AC pressure gauge?
Normal high and low AC ambient temperature pressure chart Ambient Temperature in °F Low side Pressure Gauge reading and High side Pressure Gauge reading 65°F Ambient temperature: Low side pressure 25-35 psi High side pressure 135-155 psi
What to do if your Jeep Cherokee does not have power?
If the blower motor does not have power, check the fuses, and if they are good, check to make sure there is power to the blower motor resister. If there is power to the resister, the resister is bad; if not, the control switch is bad.
What should the large line be on a Jeep Cherokee?
The large line is the low side for the low pressure (suction side) which returns the Freon to the compressor. It normally carries 30 to 60 lbs. of pressure. The line should be cold. If it is, then there is a problem with the electric motor controlling the doors under the dash.
Are there any problems with the Jeep Cherokee?
Although it is one of the most recognizable models on the SUV landscape, the Jeep Cherokee has been plagued through the years by driver complaints about chronic stalling. There are countless instances of Jeep Cherokees stalling while traveling at low speeds or high speeds, driving straight or losing power in the midst of a turn.
How many miles does a Jeep Cherokee take to stall?
Jeep Cherokee XJ’s and Cherokee KJ’s with less than 25,000 miles have experienced stalling problems, but most cases seem to involve vehicles with 75,000 miles or more on them, and it is with particular reference to these older vehicles that the PCM is most relevant.
Why does my Jeep Cherokee keep stalling?
While certainly frustrating, these stalls can also have serious consequences. Here is why your Jeep Cherokee keeps stalling: Many stalling problems can be attributed to the PCM or crankshaft sensor and there are steps you can take to fix these issues yourself or at the very least point your mechanic in the right direction
Are there any faults in the Jeep AW4 transmission?
Diagnosis of faults in the Jeep AW4 transmission. The automatic transmission used in the Jeep XJ Cherokee is nearly bullet proof. Seldom does it ever give trouble. Maybe that is why it is so hard to find good information on how to fix it when it occasionally does act up.