Dorman 604-107 HVAC Blend Door Actuator

DYI: perfect fit for my 1995 GMC K1500 (same as Chevy version). PART: Part same size/shape as original, with one exception. Main sleeve attached to gear was a metal/plastic combo on original, which I read and have experienced breaks easily due to both materials heating & cooling at different rates. New part is all plastic, which actually may prove an advantage and avoid this problem. INSTALL: Instructions provided vague, and trip to Dorman.com website did not help much. You see, this part is used a two different places on these pickups. MAKE CERTAIN to turn on key, then shut off all HVAC/fan controls, then remove key and REMOVE a battery cable (if you turn on HVAC/FAN during install, you will regret it (messes with alignment, and you will go nuts). 1) MODE DAMPER (controls air to blow at floor/dash, defrost/combo). It's the one where your right foot is (just above and to the right of your throttle pedal). That one is easy - remove two bolts disconnect connector and off, reverse to install. 2) TEMPERATURE DAMPER (controls mix of hot/cold air): Mine was of course this harder one, behind the ash tray part of the dash. For this, instructions say to "roll dash forward", which come to find out means take loose ENTIRE dash and move it forward to access. MUCH BETTER METHOD AVAILABLE. Simply remove glove compartment (open door, slide/remove cable on left side, squeeze-in back of glove box until it falls out toward you and lift whole assembly out (reverse to reinstall). Remove ashtray (open and squeeze-in back at sides). Now you have two open, but confined, access points to replace this damper part. You need a midget (small) socket set with 5/32 socket and long extension to remove the one bolt via ashtray. Next I used same socket and midget ratchet alone and remove second bolt, one click at a time. remember, I said SMALL access available. After skinning your knuckles, remove wire connector (pull tab on top/back up first to loosen). Now part comes out, and you question your sanity. Have patience, Grasshopper - go to your happy place. In my case, I had to make the sleeve match (the white plastic hollow hole at top of part's picture). New part was aligned differently, so simply took loose four screws and manually pulled out gear and turned until it's position matched the removed old part. IF you try part and it won't 'notch' into place, this is likely what you'll have to do as well. Once I did this, part 'notched' into place and I reinstalled bolts (tip----you may have to use tiny bit of tape to hold bolt in socket until you get it started in its hole). Finish by reinstalling ashtray, glovebox, and battery cable. Start vehicle, and check operation. Mine was golden, and trust yours will be, too. OVERALL: Part works great, price great, install saves hundreds in shop bills. Wonderful way to build character.

Once I reset it , worked perfectly.

1997 Chevy 2500. Vent door actuator. For these vehicles the blend door actuator and vent door are the same part number. The old factory one was non-functional. After receiving this part I spent 5-10 mins swapping the old with the new. If you replace your vent door actuator you will need to cycle the locator knob, slowly, a couple times after cranking the vehicle. This will allow the unit to orient itself properly.

Installed for a 2002 Pontiac Grand Prix GT. The car has dual climate (perhaps they all have dual climate?) with slider controls. The actuators are identical so don't worry about mixing them up. Installation is fairly simple and straight forward. For me, only 1 wasn't working which was the passenger side. I decided to install the new one on the driver side in hopes that it lasts a long time and I don't need to replace it again since it is harder to access the driver side actuator. The driver side is accessed by removing the piece that's under the steering wheel and above the pedals. The passenger side is accessed via removing the glovebox. I have included a few pictures of my "stock" (it's an old car, not sure if "Woory" was stock) actuator. It was the style with a metal gear that's visible and plastic on the inside. As you can see in the picture that has it opened-up, the large plastic gear is broken (but the motor is still good).

Perfect fit for a 1995 2d 4WD Tahoe. My son's truck was blowing hot air out of the vent when A/C was on. No engine temp issues or other symptoms. A quick search online noted that the blend door actuator behind the glove box was a common culprit for this issue. There seem to be a few model numbers for this actuator. I can confirm that this is the right one for the vehicle I mentioned. After removing the dash molding, ashtray, and glove box this was a fairly easy swap. We confirmed this was the actual issue by observing the old actuator while changing the temperature control. It was not turning the mechanism in response to the dial. The only issue to note is that the OEM actuator used a metal connection and the Dorman one is made from nylon. I don't foresee this being an issue since the actuator door engagement is hard plastic vs metal. We took about 90 minutes figuring everything out. But we also fixed his ashtray hinge while we were at it.

So the problem that had was that there are seven pins in the OEM one that I had. This one had five and spots for the other two. I couldn't find a wiring diagram for the system. I had to take the chance. After reading the mounting/alignment instructions it slipped right in. Works perfectly so far. Im still wondering what the unused two spots are for? Its a 97 Chevy 3500 and now I can direct where the heat comes out. Defroster, dash vents or floor.

It fit and seems to work

Fits perfectly and is just what was expected

Sent it back .