Jaguar Heating & Cooling - Page 4 - Recent Questions, Troubleshooting & Support

Hi there:The PCM (also called ECU or ECM) is located under the pollen filter housing in the passenger corner of the engine compartment.

Listed under air conditioners for home, post a new question in car and truck area.

you have this listed in the AC for home area, might want to post a new question in the car and truck area.

what are the gauge readings?

what year is the jag.

Just two things without equipment. (That I know of). Is the clutch pulled in and the compressor running? If so, is the larger line coming from it cold? DON'T touch the small one! It could be very hot. If the clutch is not engaged, follow the larger tube from the compressor toward the fire wall. There is a low pressure safety switch that could be bad and can easily be by passed to check. Unplug the two wire connector and jumper those two wires. Be sure the AC control is set to "MAX COOL" and your thermostat is as low as it will go. Let me know if the clutch is engaged or the compressor running. You could have a 12 volt compressor with no clutch. They are out there. Roger

If it is low on Refrigerant, it will cycle the clutch off. When the pressure rises from the lines equalizing, it will come back on. When it does stay running, does the larger line get cold? If not, it is probably low on refrigerant. Roger

Hi, There is air trapped on refrigerant line. Please release it and add refrigerant and retry.Check also recommended refrigerant for your air conditioning system. Regards, Jay

have you found out what the answer is yet?

If it only happens when the ac is on maybe it doesn't have as much power as before? Bad batt or possibly a bad alternator. Also check for a good seal on the intake for the air.Also check the IAC valve on throttle body.Also check if fuel injectors are cracked or got clogged.If yes? Clean the injectors and check.Also it sounds like a coil pack is on the verge of dying. The a/c is putting more load on ignition and it can't keep up.And this is causing the problem. --------- But if all checked ok then it can be anything from a recharge (which indicates a leak) to from compressor.Or its weak compressor.-------------- Get this possibilities checked.This will point towards the faulty part causing this issue.-------This should help.Thanks.Helpmech.

The day you were born.

CHECK THE CAPACITOR MAKE SURE THEIRS POWER GETTING TO THE FAN IF BOTH ARE GOOD REPLACE MOTOR

Mine did the same thing. There is a valve that controls the spray that seems to work its way loose from its designated spot. This in turn depresses the actuator on the valve making it spray constantly. The valve is located where the upolstry cleaner cleaning solution port is. Disassemble the upright portion of the vacuum and make sure the valve gets pushed back into its place. I was able to use a ziptie to hold it securely after correcting its position. Use the two holes in the upright portion of the vacuum directly behind the valve to ziptie the valve in place securely.