1990 Chevrolet Suburban 1500 Q&A
1990 Chevrolet Suburban 1500 Question: Air not cold
2 cans of 134a does not sound like enough charge for the a/c system on your Suburban. There is usually a label under the hood stating the charge amount - often found on the top of the accumulator which you have just replaced. If you have rear a/c that will require more refrigerant that front a/c only. You will need to find out what the proper "charge" amount for you a/c system is. Once the refrigerant level is correct then you can check the system performance. - Russ
did you vaccum the system to remove air before you charged? If not it could be reading 50 psi because air is trapped in the system along with the 134a. - Visitor
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored...
For no good reason my a/c stopped blowing cold in the front of my truck,but still blows cold in back??? any ideas,??? THANK John
the front air is barely cold and the rear air is ice cold...also the recirc light stays on when recirc is off???? whats going wrong?
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail...
It will stop blowing hot air only if you turn the ignition off and on. This could be for 10 seconds at a traffic light, then the AC Blows cold again. Very intermittent. Can blow cold for 3 min...