AZC system calibration problem? Jeep Registry
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AZC system calibration problem?

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Model:Grand Cherokee Limited

Engine:4.7L V-8

Recently replaced blend doors bec. no heat on either side. Used a kit from online somewhere. Fix worked for a few days, then like clockwork, every 3rd ignition start, passenger side will only blow cold. Shut it off for a few mins. and I can hear the doors calibrating and next start it will work fine until start #3. Repeats over and over.

I have recalibrated the AZC multiple times manually by pulling fuse in engine compartment and it hasn't helped. HVAC system not throwing any error codes either.

Any thoughts?



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