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Discussion Starter · #1 ·
Looking for advice..

Left my mothers home today at was blowing strong and cold, drove for over 20 minutes then stopped for gas… still good at this point…

put on sport mode to pull out of gas station and drive for 5 mins more until I noticed it was getting very humid and hot inside the car.
Ac isn’t blowing cold now, parked car at home and tried turning ac on and off… the car revs a little different when ac is put on but I hear no clicks or anything like that.

car is a 2011 crz ex. Never had any ac issues or service in the past
 

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Revs up when you manually turn on the AC?

Makes me think the PCM is anticipating the load of the compressor and adding throttle while commanding the AC clutch but the clutch never hits.

Could be the air gap on the AC clutch is too big, common issue. Easy enough to test for. I think there is a write up for testing and fixing around here.
 

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Discussion Starter · #3 ·
Revs up when you manually turn on the AC?

Makes me think the PCM is anticipating the load of the compressor and adding throttle while commanding the AC clutch but the clutch never hits.

Could be the air gap on the AC clutch is too big, common issue. Easy enough to test for. I think there is a write up for testing and fixing around here.

Any suggestions on who to take it to to have it fixed or looked at? I haven’t had to service this car except oil changes.
 

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A/C specialist or a general mechanic should be able to diagnose it.

Have you replaced the coolant, brake fluid, filters, rotate tires etc.? There is a whole list of maintenances the Minder tells you to do other than just oil.

Any suggestions on who to take it to to have it fixed or looked at? I haven’t had to service this car except oil changes.
 

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Discussion Starter · #5 ·
A/C specialist or a general mechanic should be able to diagnose it.

Have you replaced the coolant, brake fluid, filters, rotate tires etc.? There is a whole list of maintenances the Minder tells you to do other than just oil.
coolant is 10 years I believe but I need to do that soon, filters regularly, tires yup… brake fluid I actually have not done at all lol.
 

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Coolant I would replace more often (and I do. The Speed Bump has had the coolant changed 3 times in 85K miles and will be done again at inspection time whether the minder says so or not), see all the issues with Dex cool in GM cars. Engine coolant is code 5 on the minder. Brake fluid should be done according to the service history book every 3 years. I do mine every 2 years. Brake fluid absorbs water (it is hygroscopic) and the more water in it, the more chance of it boiling at a lower temperature. The minder, owner's manual and service history book are the minimum maintenance you should do. I add to that doing cross rotations on the tires instead of just front to back, changing the transmission fluid and filter every 3 years or 30K miles (I have a CVT), all filters (engine and cabin air) every year with all 3 wipers. I also coat all the rubber seals for the doors, hatch and windows yearly with silicone spray wiped on them and use spray lithium grease for all locks and latches and pivot points. I also clean the battery terminals and ends under the hood, any time they look like they have gotten corroded. Part of that is tightening the cables as tight as I can.

You may want to review your owner's manual. When you had services done or did them, did you maintain the records in the Service History book? I may be one of the few that does that. Oil should be done by the minder or at least once a year. Due to the known issues with the under hood battery, I also have it load tested at the same time as my annual inspection, which is also when my oil change and tire rotation is usually due (oil by minder or time).

Do you at least follow the minder?

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Maintaining a car to the minimums in the owner's manual (or minder) or more often is less expensive than replacing the major parts that can fail due to lack of maintenance. Brake fluid IMO is a safety issue. I have driven cars where the brake fluid boiled and had no brakes in certain situations. I never want to live though that again. According to a lot I have read from many sources, tires should be replaced every 5 years no matter the condition as they dry rot and slowly lose ability to keep air and become more prone to blow out and other issues. I at least every 2 weeks check the air pressure and adjust for safety and MPG. Many rely on the TPMS system which will allow the tires to get as low as 15 PSI when they are recommended to be at 30 PSI for the stock 16" wheels, or they never check them some even ignore the TPMS light or have disabled/removed the sensors. Radial tires just looking at them is not good enough anymore, the pressure can be low, but tires will not look "flat".

I admit I go a little over board on maintenance, but I have one car at a time and keep them decades. Maintenance beats walking or major repairs/replacement.

Back on topic, get the AC looked at but realize many places will just replace the compressor, which is the most expensive way to repair it. Many here have removed the shims or replaced the clutch alone. See the many discussions of AC issues lately.

coolant is 10 years I believe but I need to do that soon, filters regularly, tires yup… brake fluid I actually have not done at all lol.
 
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