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Does crc mass air flow sensor cleaner really work? – Auto Repair Chat

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In this video I have a look at a Ford F-150 that came in with customer complaint of a check engine light. Reading the codes revealed several "lean codes." A few quick tests leads us right to the MAF sensor. Can we clean it with CRC MAF Cleaner and PROVE it worked? Let's find out. -Enjoy!
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50 thoughts on “Does crc mass air flow sensor cleaner really work?”
  1. Avataaar/Circle Created with python_avatars Elijahtree says:

    Great video, has anyone ever told you that you sound like beetle juice

  2. Avataaar/Circle Created with python_avatars generic dude says:

    How much MAF cleaner is enough?

  3. Avataaar/Circle Created with python_avatars Morris Dugan says:

    How much of the problem would have been solved by simply blowing away the fluff that got into the MAF? I'm asking because it was the title that caught my eye, and I just bought some CRC MAF cleaner yesterday. I don't have a OBD2 device to check the results; I'm just hoping to improve my gas mileage.

    I think your price was fair. You fixed the problem, and made sure it was really fixed, including a test drive. The cause – in this case some fluff – doesn't make a difference. It would be very different if you had caused the hose from the air filter to come loose on a previous repair, but that's not what happened.

  4. Avataaar/Circle Created with python_avatars ThedopestOliver says:

    Related to the charge: the car owner could have done it himself and saved. Mr.O always says "if I can do it, you can do it." He really could have done this one.

    $100 obd scanner
    $7 mass airflow clear

    Still a win win the cost was surly under $160 I hope 🤞🏾

  5. Avataaar/Circle Created with python_avatars starving artist says:

    That a bad highway you're on there, sounds like it

  6. Avataaar/Circle Created with python_avatars totypme says:

    You get paid for your knowledge. That is fair.

  7. Avataaar/Circle Created with python_avatars paul kaufman says:

    I always enjoy your videos – LOVE your Attitude!! And, I always learn something. Thank You.

  8. Avataaar/Circle Created with python_avatars Mike Harrison says:

    Ugh. Significant exhaust manifold leak (that 'Ford thunder' you heard on startup) can lead to fuel trim issues as well.
    Had a few 5.4s in the dealership with modified intake tubes/oily cone filters on them that the tech finally convinced them to swap to OEM air intake parts instead of spending more money chasing their drivability issues.
    Fuel trim reset is 'clear KAM' on Ford OEM scantool and I believe SnapOn as well.

  9. Avataaar/Circle Created with python_avatars Ronald Todd says:

    Very informative. My repair shop wanted $600 for a tune-up which included cleaning the maf sensor. But, I did it for only $100, including the cleaning, replacing plugs and wires and it only took me all day. My time is valuable just like the mechanics. Next time, I will probably bite the bullet and let someone else do it.

  10. Avataaar/Circle Created with python_avatars Matthew Morrone says:

    My 2000 corolla had a lean issue, cold starts it would start and stall right away… once or twice then stay running no CEL ,no codes🤬… the 99 uses a TPS while the 2000 uses a MAF. After a month of this starting issue and me scratching my head, the CEL/MIL came on, lean code. I cleaned the MAF sensor, never happened again.
    Even visual inspection down the flute, could see one clean sensor and the other resistor was filthy. Visually cleaner after using sensor cleans. Toyota using MAF sensors are known for this.

    You have 12psi baro??? Sealevel is 1 bar or 14psi….that doesnt seem right. I have a hard time trusting inputs

  11. Avataaar/Circle Created with python_avatars Art Denning says:

    And buy the tools.

  12. Avataaar/Circle Created with python_avatars K Hill says:

    I don't think that's a good test for how well CRC MAF sensor cleaner works, as indicated in the title that that is what this video is about. Usually that's for stuff you can't necessarily see, not for obvious problems like a dandelion seed. First take tweezers, compressed air, something like that and remove that dandelion seed, THEN see what happens after that. Just MHO. But I'm still subscribed 😁, as of today, because your video, this being the only one I've seen of yours, is entertaining.

  13. Avataaar/Circle Created with python_avatars jim von feldt says:

    Getting 2 codes. P0017 and p0171. Chevy tb. Where to start troubleshooting ?

  14. Avataaar/Circle Created with python_avatars Segundo Slot Gambler says:

    Can a faulty mass air flow sensor cause a p1870 transmission component slipping?

    It also has lean codes.

    Gmc Sierra, it runs good on start up but then after a bit, it doesn't want to drive anymore, pushing gas pedal down, rpm just goes up, and gears don't change.
    Turn vehicle off then back on and it does the same.
    Any advice would help. Thank you.

  15. Avataaar/Circle Created with python_avatars R Astraquillo says:

    Dee Bee is right…..Do it yourself if you want it "for free". For example, got a toothache? Pull the tooth yourself or pay for professionalism.

  16. Avataaar/Circle Created with python_avatars Art says:

    So turns out “make your car run better with a little spray cleaner” does sometimes work. Scotty would be proud

  17. Avataaar/Circle Created with python_avatars J. Mark Krzystofiak says:

    I bet you’re even overdue to raise your rates.

  18. Avataaar/Circle Created with python_avatars Joey B says:

    It's your job u fix it you get paid even if its 15mins of work I dont mine paying as long its fix.

  19. Avataaar/Circle Created with python_avatars Enrique V says:

    I say your charge is a bargain! Thank you!

  20. Avataaar/Circle Created with python_avatars Steve Vera says:

    wonderful video. the cost of that computer you use is what. suggestions on one a diy could buy and get the same results?

  21. Avataaar/Circle Created with python_avatars Santiago Elias says:

    ..is that chew tin in your driver's side pocket?..and what's up with you techs from the east?…mustie stores his wallet in his FRONT right pants pocket…you carry you wallet in the right rear…and your pocket knife in your front right…is it because of the whole time difference between east coast west coast..?..anyhow…you have one of the best vehicle repair Channels I've ever spent 2-3 hours watching…"wicked "awsome dude!.

  22. Avataaar/Circle Created with python_avatars Scott Moore says:

    Dam Skippy you should've been paid. Auto shit ain't cheap!

  23. Avataaar/Circle Created with python_avatars Sprnklrmn says:

    Time is money. Can’t make a living if you don’t charge.

  24. Avataaar/Circle Created with python_avatars Mellow Guy says:

    Never apologize for charging shop rates. I'd have tossed another couple of bucks on there for the CRC spray cleaner too. I'm sure the parts store didn't simply gift that stuff to you.

  25. Avataaar/Circle Created with python_avatars John Goins says:

    Thanks for what you do. I would love you to Work on my car. Can you.

  26. Avataaar/Circle Created with python_avatars Gene Foster says:

    25 minutes to explain a can of MAF air sensor cleaner.???????

  27. Avataaar/Circle Created with python_avatars Jerry Simpson says:

    Would help clean that nasty air filter shoo nasty

  28. Avataaar/Circle Created with python_avatars gene says:

    I need one of those Gizmo's, having sensor troubles on my old Tortus, how much are they? I'd like to see that done in a top fuel, you were getting close😁 Gotta a spare mas sensor in junkyard other day and new uncracked air cleaner box, my Vulcan was eating dust. New iacv and EGR pressure sensor, it was done. I'll put map sensor on tomorrow, should cover all the codes I had

  29. Avataaar/Circle Created with python_avatars Edwin C. says:

    I have the same codes p0171&0174 on my 03 ford E150 4.2 v6. My freeze data shows 25% on long term at idle engine warmed up to 190 rpm at 854. I give it some gas and the short terms drop to the negative digits meaning vacuum leak. But I'm stuck because if I let it idle without the air filter the shorts terms drops drastically and the percentage between both combined is less than 10% If I put back the New air filter the short trims go back up in theTeen's. Any advice I would appreciate. I did smoke, propane, water spay, visual and can't find no vacuum leaks. Cleaned the Mass air flow sensor, TB, changed the egr valve due to alot of smoke coming out when tested but nothing. PCV working fine. o2's are monitoring correctly.

  30. Avataaar/Circle Created with python_avatars Slewfoot says:

    And a 30-06 too?? WOW! LMAO. thanks for the video🙂

  31. Avataaar/Circle Created with python_avatars Guillermo Gomez says:

    People have some nerve asking if that's billable. It's not charity work, it's a business. Don't want to pay for work, find alternative means to fix your issues.

  32. Avataaar/Circle Created with python_avatars Doug Saint says:

    Didn't follow directions on cleaning sensor…

  33. Avataaar/Circle Created with python_avatars Underground Subs says:

    You get paid for what you know not bc of how easy it may seem and yes the dealer would of charged for dirty rags too🎃

  34. Avataaar/Circle Created with python_avatars William Vangorden says:

    Chiropractors must be busy in your area I know they are in my area. Starting to think it's quite lucrative considering that the roads are very bad.

  35. Avataaar/Circle Created with python_avatars William Vangorden says:

    Sounds like you need a tire rotation ha ha!

  36. Avataaar/Circle Created with python_avatars Ilya says:

    Love your videos, keep up the good work.

  37. Avataaar/Circle Created with python_avatars CallMeLee says:

    Watching this one for review in October, 2021 – got so engrossed in the diag and teaching that when Eric got out on bumpy-ass, torn-up Main Street, I wondered out loud, "Didn't Main Street get repaved a long time ago?" Why yes, yes it did, a month or so after this video was made IN JUNE, 2019. SMH, time travel via YouTube…

  38. Avataaar/Circle Created with python_avatars John Iredale says:

    jeezus what a rickety clunky sack of shit lmao! just watching that test drive was stressful

  39. Avataaar/Circle Created with python_avatars C#PO says:

    You have a fiduciary responsibility to your family to maximize your income within fair practices. No one can accuse you of being anything but ethical and highly competent at what you do.

  40. Avataaar/Circle Created with python_avatars Cody Tran says:

    Yes it can if its dirty, no it wont if its electrically broken.

  41. Avataaar/Circle Created with python_avatars Mikey Swerve says:

    Actually it’s not the rrrr nor the C it’s the bootE

  42. Avataaar/Circle Created with python_avatars Daniel Simpson says:

    Pirate vowels.
    A
    E
    I
    O
    U
    and sometimes Rrrrrrr.

  43. Avataaar/Circle Created with python_avatars Shayne Kreitzer says:

    Great fix and verify!

  44. Avataaar/Circle Created with python_avatars Wayne Dimirsky says:

    That stuff worked for me yesterday. My daughter calls me and says her 2010 Chevy Cobalt won't start. She had been to work that day and came home and was going to go back out and no start. She said car would start for like a second or two and then stall. No CEL but I put my scanner on anyway and no codes. I had her turn key on and verify that the fuel pump was coming on which it did even though the fuel pump fuse in the under hood fuse center would never light my test light. I checked for fuel at the shrader valve and had plenty. I forgot to bring my fuel pressure gauge but it seemed to have plenty of pressure.

    I started checking fuses with my test light and found that about half of the fuses on the right side of the box didn't have power with the EOKO and I didn't have access to a wiring diagram to see how these were supposed to be powered.

    I decided to google search the symptoms for this car and there were several mentions of the MAF sensor. I tried unplugging it and trying to start it to see if it would run on some type of backup strategy which it did not. Luckily I had brought this MAF spray with me so I pulled it out and cleaned it very well. I didn't see any debris or dirt on it and it was the same style as what is in this truck. Re-installed it, plugged it in and it started. I shut it off and restarted it several times and it started fine.

    I've not received any calls today from her saying it won't start so I'm assuming it's still starting fine. Luckily I was able to fix it fairly quickly because it was at the end of the day and I didn't have time for an extended diagnosis. I'm just a DIY'er so I still don't have a lot of knowledge on fixing these issues but I'm trying to learn. This channel as well as Scanner Danner's and Pine Hollow Diagnostics have already taught me a lot. Thanks for that.

  45. Avataaar/Circle Created with python_avatars Jacob Miller says:

    Giving attention to the description box….

  46. Avataaar/Circle Created with python_avatars Frank Thomas says:

    Customers don`t realize what it costs the mechanic to be able to repair these vehicles. I just recently had to pay almost $300 to get the special tools to replace the front crankshaft seal on a BMW N54 engine.

  47. Avataaar/Circle Created with python_avatars Gary Faver says:

    Do you work on duramax? I had to replace the inlet air heater and that fixed the run issue but now do not have much power until turbo kicks in

  48. Avataaar/Circle Created with python_avatars Bill Spinks says:

    I see why the truck wasn't driven over 8 mph on the scan tool. That is some ruff roads!