Naughty Truck Newsreel: Broken Driver's Side MVAC Blend Door Replacement

Автокөліктер мен көлік құралдары

Warning: not really a how-to and contains rambling. Don't watch if you have a rambling allergy or tendency to be obnoxious as a response to rambling videos. Still here?
On this installment of the Naughty Truck Newsreel from Nitwit Garage, your host and narrator looks into what's gone wrong with the driver's side blend door actuator on his 2007 Chevrolet Silverado Classic. I really can't complain -- the thing lasted over sixteen years, almost 260,000 miles and through countless cycles. And the replacement part sure was cheap!
If you have a similar truck (at least from model years 2002-2006 and the 2007 Silverado Classic) with the RPO CJ3 dual zone manual climate control system, you can likely reset all of the actuators by doing the following:
1. Set the blower speed to 3. There's no need to have the ignition on.
2. Pull the HVAC/ECAS fuse.
3. Wait TWO WHOLE MINUTES at least.
4. Put the fuse back.
5. Turn the ignition on. There's no need to start the engine and you may not want want to, in case doing so interrupts the microcontroller's "relearning" efforts. Just wait. The blend door will move through its complete range of travel twice. Be patient (notice a theme here?)...
6. Test to see if the blend door now works correctly.
You need a 5.5 millimeter stubby nut driver, which you probably can't actually get. I later asked the Keykeeper if he had such a thing that I could have stolen, and he did not.
If you have an actuator with a failing resistive track, performing this recalibration may buy you some time, though the fix is not likely to last. You may also have to do this if your truck's battery fails or after something like a jump start.
The IC inside the module is a TCA0372 operational amplifier. One of its many applications is for use as a bidirectional motor controller. See the datasheet here, complete with an example circuit that's probably very close to what is done in this module: www.onsemi.com/pdf/datasheet/... .
I am well aware that both the airbag fault and service engine soon lights are both on, as I have these crazy things called "eyes" that let me see stuff. (They are also kinda handy for driving, if you can believe it.) As it's important that the airbag work so it'll keep you from getting hurt in a crash by breaking your face when it goes off, I would gladly fix it. However, it seems that new replacement sensors are no longer available here in 2024. I'm not going to pay good money for a used part that might soon fail in exactly the same way. I don't know if this situation will pass, so if you're watching in the future and airbag sensors for this truck are available at the bottom of cereal boxes, just know that they weren't when I wrote this and I'm probably far too lazy to go back and edit it should things change.
I don't care that the "check engine" light is on, and I **really** don't care that you care about its being on. If you really care that much, the code is for a minor evaporative emission control leak. I don't care to spend the rest of my waking life trying to find said leak, and after having asked several mechanics about doing the same, they didn't seem really enthused by the idea either. Now you know. Get off my lawn.
Not mentioned but explored in this video was the possibility of abusing my refrigeration service wrench to drive the 5.5 millimeter bit. It didn't work.
0:00 Intro
0:15 No affiliation with other "nitwit garages", if there are any.
0:40 What's gone wrong this time?
2:03 Temporary Workaround
2:51 A primer on appropriate tool use.
3:09 Tool Dichotomy: Hammers and Chisels
4:03 Borescope Exploration!
6:20 It's a boy!
6:50 Manual blend door operation.
6:58 Much ado about plugging in the old actuator.
7:23 Fault demonstration.
9:29 Super Krappy Part
12:04 Boldly going where no Scanning Electron "Candyham" has gone before!
12:37 What, why and how it works.
15:03 New actuator in operation
15:33 Recalibration Process
17:33 Thank you for watching!

Пікірлер: 72

  • @vwestlife
    @vwestlife3 ай бұрын

    A "lifetime warranty" on a part means you'll spend a lifetime replacing it when it breaks.

  • @jestertech3790

    @jestertech3790

    3 ай бұрын

    I still use that joke on a daily basis.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    9:47

  • @josh6715

    @josh6715

    3 ай бұрын

    ​@@uxwbillI remember doing the blower fan on my car it wasn't fan there are 2 or more sharp pieces of metal on either side and yes I got cut more then once

  • @josh6715

    @josh6715

    3 ай бұрын

    It wasn't fun not fan

  • @jestertech3790

    @jestertech3790

    3 ай бұрын

    @@josh6715 I remember having to replace the starter annually on my '74 GMC. This went for about 5 years until I spent the big bucks on a mini starter.

  • @jewllake
    @jewllake3 ай бұрын

    This truck has served you well. I remember the video where you introduced it to us.

  • @weegeemike
    @weegeemikeАй бұрын

    Im having a similar (but opposite) issue on my moms 2011 Chrysler 300. AC works great but something is stuck or broken up in the dash, possibly an actuator or maybe blend door, as you get ice cold air on the driver's side but warm to hot air out of the passenger side. The 2nd gen LX platform Chrysler/Dodge 300/Challenger/Charger have very finnicky HVAC systems and her car has already been worked on multiple times for similar issues, air coming out of the bottom only or top only, etc. And theyre a pain in the ass to deal with, having to disassemble and sometimes remove the giant dash just to reveal beey thin, cheap plastic components. By the time you get one thing fixed on the HVAC, something else would break. 😂😂 Glad to see you posting again Bill, ive been a viewer since probably 2009! Your videos and rambles remind me of better times.

  • @BigMitch
    @BigMitch3 ай бұрын

    It's nice to see Naughty Truck still going strong. Probably the last great truck GM ever made, and possibly the last great truck ever made in general.

  • @ziggieice
    @ziggieice3 ай бұрын

    Another video from Bill. Today was just all that much better

  • @vwestlife
    @vwestlife3 ай бұрын

    The video URL is appropriate, as this video contains lots of Richarding around.

  • @KC4RAE

    @KC4RAE

    3 ай бұрын

    🤣

  • @uxwbill

    @uxwbill

    3 ай бұрын

    Absolutely everyone is a comedian.

  • @Destroyed007
    @Destroyed0073 ай бұрын

    If the scanning electron Handycam can't do the job, allow the scanning electron borescope to the rescue. Oh, and thumbs up to all of the silly rambling videos.

  • @oneFreetinker
    @oneFreetinker3 ай бұрын

    Every tools a hammer except a screwdriver, that's a chisel and a pry bar. Wise word wild Bill.

  • @jestertech3790
    @jestertech3790Ай бұрын

    I once bought a set of SKP upper ball joints for my Suburban, and they completely wore out after like 6 months. Though there wasn't a lick of greese in them after 6 months, so I'm guessing water ingress (Might have to do with my various off road adventures). The lower ball joints are still completely original and in great shape.

  • @aguiristante
    @aguiristante3 ай бұрын

    Nice to hear you again

  • @Helo735
    @Helo7352 ай бұрын

    WILLIAM! It's great to see you post a vid!

  • @jestertech3790
    @jestertech3790Ай бұрын

    The old 330,000 mile '98 Suburban had it's drivers side blend door motor fail about 2 years ago. . . Thats it . . . I still haven't replaced it, I just positioned it so that the air comes out of the dash vents.

  • @Underappreciatedclassics
    @Underappreciatedclassics3 ай бұрын

    It’s good to see naughty truck is still trucking along! I’ve been following your page since around the time you got it! Another great video from Walsh motors.

  • @Buckwsr
    @Buckwsr3 ай бұрын

    The recalibration procedure was particularly helpful. Also, I enjoy rambling. I tend to do a good bit of that myself!

  • @jeffrey.lebowski
    @jeffrey.lebowski2 ай бұрын

    The older actuators GM used had a metal shaft pressed into the center of the large gear rather than an entirely plastic gear (as the replacements now have instead). The large gear used crack in one spot from stress/age and then the smaller gear that turns it would eventually land in the crack and no longer reach any teeth. They also used a small potentiometer in the corner to read the location rather than the contact trace.

  • @KC4RAE
    @KC4RAE3 ай бұрын

    The Buick had this issue with it's blend door. I never fixed it. I went years of hot, then cold weather before getting rid of the car, but I had to manually actuate the blend door. I took the glove box out and left it out since fixing it wasn't the highest priority. I had to pull off the road to change it since it was quite a stretch to get to the blend door.

  • @trr5291
    @trr52912 ай бұрын

    Luckily I haven't had to replace the blend door on my 2002 Dodge. I did replace the resistor and the blower motor. It would only work on high. And one day the blower motor just quit working. Luckily it wasn't hard. You just take the glove box off. The blend door looks harder.

  • @walshmonster2005
    @walshmonster20053 ай бұрын

    Good video.

  • @tallboyyyy
    @tallboyyyy3 ай бұрын

    I had to make the same repair to my old Mustang a couple years ago. It was easy to find but almost impossible to remove due to it's location. Two of the three mounting bolts weren't that bad to remove but the third bolt was only removed after trying to get multiple different tools on it combined with a LOT of colorful language. Once I finally got it out the new actuator went in easily as I omitted the difficult bolt. Like yours, in order to get it to home itself properly you had to pull the fuse while doing the work and put it back once it was connected. I saw a lot of reviews on the actuator I bought saying it broke almost immediately after installing it. I believe it was due to people not pulling the fuse and the actuator trying to move beyond it's range and breaking teeth off the sprockets because it wasn't properly homed.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    I would be curious how similar the plenum design and location is between the Mustangs and Panther cars. There's also a fastener in the Panthers that's difficult to get at.

  • @tallboyyyy

    @tallboyyyy

    3 ай бұрын

    @@uxwbill Sorry but I can't help you with that. I traded the Mustang in last summer.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    The question was rhetorical.

  • @16v71
    @16v713 ай бұрын

    But, still better than truck payments.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    That, and there's just about nothing on the market I'd actually buy!

  • @thelazyfishkeeper2730
    @thelazyfishkeeper27303 ай бұрын

    good morning. a quick truck repair and a conversation with bill. always a treat to see an upload..... do you still take time to tinker with computers?

  • @spd1214
    @spd12143 ай бұрын

    Hi William. I've been a long time viewer of your channel (10+ years) and I wanted to tell you I have thoroughly enjoyed your videos. You are a natural at making vids. Keep up the great work! I've got a question for ya, do you know whether or not your area is going to be in the direct path of next month's solar eclipse? If so, were you thinking of doing a video on it? Thanks.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    Thank you for tuning in over all of those years. I'm not sure about the eclipse, but I don't think this area falls in the direct path. We will probably still see some effects, though. I don't plan to make a video, especially as I will be working.

  • @spd1214

    @spd1214

    3 ай бұрын

    @@uxwbill Thanks for getting back to me so quickly. Much appreciated. Yeah, I wasn't sure if your area was in the path. I just thought I'd ask. Take care.

  • @djcrownvic7017

    @djcrownvic7017

    2 ай бұрын

    @@spd1214I took the day off just for this life time event! I'll be driving a couple hours or so to be in the path of 100% totality. Unfortunately since it will be in April, odd are about 70% that it will be overcast for that area. I checked out the eclipse map, and it looks like Bill will be in the path were the sun will be covered in the 85%-95% range.

  • @gerredstallings465
    @gerredstallings4653 ай бұрын

    The weather in my area is doing the same thing hevy rain and hall last week a mix of rain and snow over the weekend now a nother sunny day good to see your videos when u can get them posted

  • @zachb9011
    @zachb90113 ай бұрын

    was very good

  • @SudosFTW
    @SudosFTW3 ай бұрын

    I rue the day I'll need to do this to the 05 grand caravan. when it's extremely cold out, it likes to stick a bit. after the heat is on for a second it'll come open if you do it again, but anywhere over 40F it's usually fine. however, it'll always stay wherever the dash pot is set, so it doesn't auto-close after the car shuts off. I know some of them do and it's a real PITA.

  • @mydogpeaches1
    @mydogpeaches13 ай бұрын

    so im pretty sure the passenger side actuator is on the top side of the hvac box and its dashboard out to change it i have a really high spec 2003 suburban with the center console my passenger side actuator is making the same noise you described and i was quoted a lot of money to change a 30$ part it was all labor and being i have the center console with the bose sound system the subwoofer is in the way so the entire console and so much more has to be removed to get to the driver side actuator it’s in the same place as yours is just basically completely covered my favorite one and im being very sarcastic was the blower motor control module on a 2011 f250 that wasn’t just dashboard out it was also removal of the HVAC box because it’s on the backside and you can’t get it out because it hits the firewall dumb design they had room to place it on the front but didn’t what a job needless to say it got new factory heater and a/c Coors while i had it apparat as they are dashboard out as well lol the way vehicles are made these days is truly crazy

  • @AricVogel
    @AricVogel3 ай бұрын

    Regarding the engine light, I had a hard to track down EVAP system leak myself a few years back. I even ran the Ford IDS leak check procedure (where the PCM pulls a vacuum and holds it for a predetermined amount of time), and it passed. Eventually I caught the purge solenoid intermittently getting stuck open. I pulled the electrical connector to it as the PCM was commanding it on, and put my finger on the the inlet and felt vacuum despite the fact it should be closed with no power. New $30 purge solenoid cleared my check engine light.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    Although I've never seen one fail, I have some hope that the light might eventually burn out. :-P About a year and a half ago, the gas tank actually fell out of the truck while I was driving it. The racket this made had me thinking something had just come majorly undone in the rear end. I'm actually kind of surprised it didn't sever any of the fuel lines and leave me stranded somewhere. Since (of course) this happened miles from home, I had to hire the repair done. As the mechanic balked at the notion of tracking down the leak, I let it go and haven't been able to work up the enthusiasm to revisit the subject. If ever I do, there will probably be a video.

  • @Blacklight8001
    @Blacklight80013 ай бұрын

    For how many miles that truck has on it, Im quite impressed how quiet the engine is. Both GM trucks my family has owned had considerable lifter tick at lower mileage. Albeit, they were 5.3L engines.

  • @FredWilkinson-hh2it
    @FredWilkinson-hh2it3 ай бұрын

    Need more buick videos

  • @uxwbill

    @uxwbill

    3 ай бұрын

    No more Buicks here...

  • @johnmay4803
    @johnmay48032 ай бұрын

    Hello sir. Do you have a P.O box pal because I would like to send you a Dell optiplex 3010 mini tower with a 3rd gen i5! I no you said you are not a fan of later dells but I'm a collector of Dell's after the core 2! Even though you think they are not made as well but I honestly think that Dell's are the best made computers 2 this day! My favourite one in my collection is the precision T 5600 with 2 Sean's and 2 Nvidia k4000's in SLI with 128gb of DDR3 XXX ram! It's the best made computer I've ever had or seen! I have not seen as many as you have sir but it's definitely the best made DELL ever! The wait of it is unbelievable even if it's a workstation! Lol I do hope you are ok and I have really enjoyed your videos and it's nice to see another DELLION on KZread! Thanks for the content

  • @uxwbill

    @uxwbill

    2 ай бұрын

    Thank you, but no. I value my privacy and don't need any more computers.

  • @johnmay4803

    @johnmay4803

    2 ай бұрын

    @@uxwbill no problem i understand compleatly and im sorry about my spelling im dislecsick. i can read perfectly but mmy spelling sucks. i will say that the sff dells and any make of pc i find very cheap but the dell mini towers are fantastic! i am afraide they are taking over my house! it started with a pc in every room now my 2 spare rooms have been taken over by them !! its a war of space and i am losing!!

  • @Samspianopage
    @Samspianopage3 ай бұрын

    Great video as Always Bill. Just crossed my mind given yer on about yer truck, have ye heard anything about how the chap who bought yer 1984 GMC Sierra is gettin on with it??

  • @uxwbill

    @uxwbill

    3 ай бұрын

    The last I knew, he sold it a short time later. I don't know where it wound up after that. I'd be surprised if it still exists in one piece.

  • @Foxlone
    @Foxlone3 ай бұрын

    I have a 1989 Buick LeSabre custom same car as yours. You have to keep the pedal all the way to the floor in order to start it and it wont idle. I’m going to check the idle air control valve. Do you think it could be anything else besides the map sensor and the control valve?

  • @uxwbill

    @uxwbill

    2 ай бұрын

    It'd be worth checking the most obvious stuff first, if you haven't already: air filter/air box (got a mouse nest or other clog?), fuel system pressure and coolant temperature sensor. If all that seems OK, I'd definitely inspect the IAC motor. The MAP sensor is probably good.

  • @bigblockelectra
    @bigblockelectra3 ай бұрын

    I have to do this on a Park Avenue, similar to the red one that you have. I wonder if the parts are similar? There is something sticking in the blend door; it makes an odd groaning noise. Hopefully they're easily accessible...

  • @uxwbill

    @uxwbill

    3 ай бұрын

    They are likely similar. I don't know how difficult they might be to get at, and as there are no more Buicks here, I can't check.

  • @1marcelfilms
    @1marcelfilms3 ай бұрын

    Can you do teardown of the motor?

  • @uxwbill

    @uxwbill

    3 ай бұрын

    Probably not.

  • @rrcoster
    @rrcoster3 ай бұрын

    Nice see new video bill....yup lifetime warranty always best cause replace it the rest of your lifetime owning that vehicle lol

  • @tommyhanlon8012
    @tommyhanlon80123 ай бұрын

    Billllllllllllllll!!!!!!!!!!!!! 😊

  • @uxwbill

    @uxwbill

    3 ай бұрын

    Service keyboard soon.

  • @Madness832
    @Madness8323 ай бұрын

    A new UXWBill video! ✝️💩

  • @twocvbloke
    @twocvbloke3 ай бұрын

    I disagree, screwdrivers make great hammers, as my chipped, dented and gouged screwdrivers will attest to... :P

  • @luanhana2100
    @luanhana21003 ай бұрын

    uxwbill more videos please .

  • @uxwbill

    @uxwbill

    3 ай бұрын

    If you have been here for any length of time, you know better.

  • @luanhana2100

    @luanhana2100

    3 ай бұрын

    @@uxwbill yes my dear friend.

  • @1marcelfilms
    @1marcelfilms3 ай бұрын

    More overengineering crap in these modern vehicles. I move slider on the dashboard and it moves a flap. never fails.

  • @tschuuuls486

    @tschuuuls486

    3 ай бұрын

    Until the plasic cracks or the cable seizes. And I take automatic climate control any day. Set the temp and forget it.

  • @AricVogel

    @AricVogel

    3 ай бұрын

    @@tschuuuls486I agree, it may or may not be as reliable as a cable, but the convenience is worth it to me. It turns the fan up when the coolant warms up, ramps the fan down when the cabin has reached my desired temperature, and it can automatically go from heat in the morning to AC in the afternoon when I leave work without me touching anything. Not to mention, after nearly 18 years, one easy to replace $20 part failing doesn't seem unreasonable at all. On the other hand, all those blower motors failing is a little unusual.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    It lasted for 16+ years and 260,000 miles...far longer than most people would keep the same vehicle. (I've had Naughty Truck since sometime in 2012, at which time it had about 94,500 miles on it.) I think that's more than fair enough.

  • @uxwbill

    @uxwbill

    3 ай бұрын

    @@tschuuuls486 For whatever it's worth (likely not much), I've never been a fan of automatic climate control in a vehicle. I've never cared for the way they manage the fan (run like mad at first, then settle to nearly no airflow at all), nor the way that even when they reach setpoint, there's still a cold or hot "edge" to the interior air and surfaces.

  • @tschuuuls486

    @tschuuuls486

    3 ай бұрын

    @@uxwbill some of the current generation let you set the auto mode to low, med or high, which sets the aggressiveness to reach temp etc. That's available on teslas for example.

  • @JohnSmith-xq1pz
    @JohnSmith-xq1pz3 ай бұрын

    Bad truck, it should know better than to misbehave

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