Heat gauge and AC not working all of a sudden
#1
Heat gauge and AC not working all of a sudden
Driving home today and the AC just stopped blowing cold, and the heat gauge dropped and reads nothing. The DIC temp reading is just dashes. Car runs fine otherwise. The HVAC blower works, so does the panel selector. The AC light lights up on the panel, the clutch doesn't seem to be activating thou, and of course, no cold air. It's supposed to be in the high 90's this weekend ....really want to fix this LOL
Checked the diode AC clutch fuse under the hood, its a funny looking black fuse located in the #9 position (at least I think its a fuse), and my OHM reader reads nothing on it, so I'm thinking this is the issue
Anyone else have any feedback. Its a holiday here today (Canada Day), so I can't just run out to NAPA and see if they have this funny looking fuse. Its black, about the size of a fuse, has a little arrow marking on top, and the two legs are not side by side, but rather perpendicular....what the heck is this thing?
Checked the diode AC clutch fuse under the hood, its a funny looking black fuse located in the #9 position (at least I think its a fuse), and my OHM reader reads nothing on it, so I'm thinking this is the issue
Anyone else have any feedback. Its a holiday here today (Canada Day), so I can't just run out to NAPA and see if they have this funny looking fuse. Its black, about the size of a fuse, has a little arrow marking on top, and the two legs are not side by side, but rather perpendicular....what the heck is this thing?
#2
It is a relay, sometimes they can reset themselves when you remove them, sometimes they do not. I had this happen with my old Colorado, I just learned to to keep a spare in the console, also for the coorado, i had to go to dealer and get it, the ones at the local parts store were not the same.
#4
Do you have a CEL displayed? When my DIC temp display was the dashes the CEL code was P0128. Engine Coolant Temperature (ECT) Below Regulating Temperature. Replaced the T-stat and all was good again.
Can't tell you if it affected the A/c as it was Feburary in Michigan but I would think that if there were issues with the cooling system it (BCM) would prevent the A/C from working to avoid possible overheating/damage to the system.
Can't tell you if it affected the A/c as it was Feburary in Michigan but I would think that if there were issues with the cooling system it (BCM) would prevent the A/C from working to avoid possible overheating/damage to the system.
#6
never mind, its not the diode ...switched it with the wiper diode and still doesn't work. Not the relay either, as I switched that with the rear hatch release relay.... no change
Anyone have any ideas?
Anyone have any ideas?
#7
Do you have a CEL displayed? When my DIC temp display was the dashes the CEL code was P0128. Engine Coolant Temperature (ECT) Below Regulating Temperature. Replaced the T-stat and all was good again.
Can't tell you if it affected the A/c as it was Feburary in Michigan but I would think that if there were issues with the cooling system it (BCM) would prevent the A/C from working to avoid possible overheating/damage to the system.
Can't tell you if it affected the A/c as it was Feburary in Michigan but I would think that if there were issues with the cooling system it (BCM) would prevent the A/C from working to avoid possible overheating/damage to the system.
#10
Check this thread for the procedure to replace the thermostat that a couple have already mentioned as being a likely cause - https://www.chevyhhr.net/forums/how-tutorial-library-21/how-save-%24350-00-thermostat-replacement-2-4l-p0128-24493/ - it may or may not throw the p0128 code via the engine check light.
Or as chevyMgr says, it also could be the temp sensor.
Or as chevyMgr says, it also could be the temp sensor.