My 1993 k1500 suburban heater is very weak, it blows strong air but its really not that hot , i checked the two hoses connecting to the heater core, there hot. i dont know if my heater core is bad or my Heater Blend Door Actuator is not working? can a heater core still be bad and give little air still?

SOURCE: AC is blowing out HOT air... How to get to the Blend Door to check it?

No, you just need to fill freon gas.

SOURCE: 1995 Chevy k1500 heater problems.

For a 95 Chevy Silverado....I replaced the Blend Door Actuator on the passenger side. Just behind the slide out cup holder. Yo ucan acces easily by removing the ash tray piece and the glove box....Or just the glove box and work like hell to get a socket in a tight place.

There are 2 actuators....one controlling the (Mode and Temp 89018681) and the other the (Air Inlet 89018367). I called the dealer and the parts were 85-125. I got it From TBA Auto (local store) for 39.00. A 20 min job at most.

SOURCE: Blower blows weak with A/C on; When A/C is off blows strong

This is not a blend door problem. It is a problem w/ your AC / Heater blower motor Resistor. When this goes out some vehicles will blow intermitantly. Others will blow strong in the low position and low on high. On my 2004 Silverado the resistor is located under the glove box mounted w/ 4 screws. It is a small black box no larger than a cigarette package. Laying flat on the floorboard look up and towards the center you shouldn't be able to miss it. Easy to change, simply plug the new one in and screw back in place. Took me 5 min.

Tech jk

• 102 Answers
• Posted on Oct 15, 2009

SOURCE: my heater stoped blowing hot air.antifreeze level

If the blower is blowing air just fine, but you cannot control the temperature, you need to listen to air coming from the vents while turning the temperature from hot to cold. If you do n ot hear any change in airflow, then you may a temperature door in the dash broken. this is becoming a common problem on the Equinox and Pontiac Torrent,

Tech JK
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SOURCE: I have a 99 K1500 Suburban with a weak 4l60e

yes. 96-99 are the same. 95 are different. 94-88 are the same. thats the most i can tell you off the top of my head. As long as the trannis are the same type they'll fit. For example a 700r4 from an 86 will fit into a 88 with a minor adjustment. But an 86 700r4 will not fit into a 86 that had a TH-400 without major changes. So as long as they're both 4L60E within the years mentioned above they'll interchange just fine.