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  1. Z

    2016 CX-9 AC Leak (suspecting upper suction line)

    I would do as you suggested. Replace o-ring and pull a vacuum to check for leaks. When recharged retest with sniffer. I would also add 1oz og Pag oil to replace ant lost in leak. A compressor running low on refrigerant tends to not return oil to the compressor.
  2. Z

    2014 CX-9 front blower motor only works intermittently

    But in a lot of car, when you set the blower motor to full speed, the circuit bypass the resistor (instead of measuring the airflow to set a certain speed it skips the resistor and it just goes full strength). So in a car with a bad resistor, lower speeds wouldn’t work but full speed would...
  3. Z

    2014 CX-9 front blower motor only works intermittently

    You can test the components individually. When motor works do you have all speeds? If so resistor is good. When you jump power source directly to motor does it always run? If so motor is likely good. You can also replace the blower motor relay with the same type relay from another circuit...
  4. Z

    2007~2015 Stripped and epoxied bolt on CX-9 oil pan?

    I agree with this, heat should break the epoxy down. Pan threads may be bad, but deal with one issue at a time.
  5. Z

    Engine Coolant Reservoir Level Low, maybe leaking? 2018 CX-9

    On our 2017 we had for over 6 years, I had to add coolant twice about 1/2 reservoir each time. With all the underhood heat, I felt it was just evaporation. Never had any coolant smell under the hood.
  6. Z

    Rear air conditioning better than the front

    The temperature sensor is used to prevent coil freeze up. The oily areas on the coil are the potential leak areas, as compressor oil exits with the leaking refrigerant. The hex plug on the valve is for factory adjustment. Its best to replace expansion valve with new. That is the heart of a...
  7. Z

    Rear air conditioning better than the front

    This is not going to be a fun job, I found a you tube video but it is poor. I have not done a CX9 myself but have done a Ford Edge which is similar. The link to the service manual in this thread should help. Good luck! Mazda cx9 changed evaporator and expansion valve
  8. Z

    Rear air conditioning better than the front

    Sealants work by hardening when exposed to air. During a leak as the gas escapes, it hardens (seals) at the point of exit sealing the leak. If your system is not evacuated properly and contains some air after adding sealant, bad things can happen. Also in the future if the system is opened...
  9. Z

    Rear air conditioning better than the front

    My profession is automotive air conditioning. If sensor is picking up R134A in front vents, most likely a leaking coil rather than o-rings. If you are selling the car soon, give the sealant a try. If you are planning to have the car over a year, replace the coil. sealants can lead to other issues.
  10. Z

    Rear air conditioning better than the front

    As both the front and rear evaporators operate off the same refrigerant system, it is important to identify the area of the leak to reduce your disassembly time. If rear was cooling well are you sure there is a leak?
  11. Z

    Rear air conditioning better than the front

    Just looked at Rock Auto parts. They list both a front and rear expansion valve with different part #'s
  12. Z

    Rear air conditioning better than the front

    If there are two evaporators, there will be two expansion valves. The suction tube (large) should be cold coming out of each evaporator.
  13. Z

    Soul Red - Body shop advice?

    Our Soul Red 2017 was hit from behind. Damage was minor but liftgate and bumper needed to be repainted. We cannot tell the difference even after a year and a half from the repair. Need a quality body shop and discuss the paint with the.
  14. Z

    What have you done to your CX-9 today?

    Our 2017 GT is almost exactly 4 years old with 47k miles. Did the spark plugs and replaced the OE battery today. Plugs were easy to do, bought the NGK from Rock Auto. Only thing that takes some time is moving the bracket above the coil packs, as some of the bolts are hard to access. Seams to...
  15. Everstart 24F 750 cca.jpg

    Everstart 24F 750 cca.jpg

  16. OE vrs 24F.jpg

    OE vrs 24F.jpg

  17. Z

    Blower motor stopped working

    Bronco, most likely an A/C issue. Can you see the clutch engaged on the compressor?
  18. Z

    CX-9 lift gate warranty

    Warranty work must be done by a Mazda dealer. It can be any Mazda dealer, not necessarily the dealer who sold the car to you. What is the issue with the lift gate? Why did the 1st dealer tell you they could not fix it? I would try a different dealer. If that fails try calling Mazda Corp to...
  19. Z

    2016+ Maintenance Mode for Rear Brake Pad Change

    When I did my rear brakes last month I did not remove the electric motor. Just put system in maintenance mode. Remove calipers, push in piston inverted hand clamp. Reinstall caliper and new pads. Remove from maintenance mode. Simple, took about 45 minutes for the rears. My OEM's lasted...
  20. Z

    CX-9 OEM Tires

    I agree PT guy, every tire is a trade off. Since no snow in L.A. that was not too important. Just wanted good ride, quiet and excellent wet performance. CONSUMER SURVEYS (Tire Rack) Based on 106 submissions of our online survey. Average Rating: Tire Category: Standard Touring All-Season...
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