Dismiss Notice

and gain access to Reviews and Discussion of the 2016 and 2017 Ford Explorer Tech Tips, How to Articles, Off-Road Modifications and Events, Street Truck Mods and Events, and much more! Since 1996 our community has covered every aspect of the Ford Explorer, Ford Ranger and all vehicles based on this platform.

Register Today It's free! This box will disappear once registered!

Muriatic acid to clean o2 sensors?

Discussion in 'Stock 1995 - 2001 Explorers' started by fbc, December 31, 2010.

  • Searches ExplorerForum.com
    1. fbc

      fbc Member

      December 11, 2010
      Likes Received:
      Trophy Points:
      City, State:
      Guadalajara, jalisco, Mexico
      Year and Model:
      '97 XLT 4WD 4.0 OHV
      I am ordering new motorcraft o2 sensors anyways, but my local Mechanic (here in Mexico) said it's a very common practice to dip the tip into some muriatic acid (which is commonly sold in hardware stores here to unclog drains). This supposedly cleans them and restores their functionality.

      I'm really not inclined to try this myself, but if you're in a bind; who knows it may be worth a shot.

      Anyone else ever hear of this? or confirm that it works?
    2. Support EF

      Join the Elite Explorers for $20 a year

      Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, add your own profile photo, upload photo attachments directly to your posts and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.

      to hide adverts.
    3. imp

      imp Well-Known Member

      November 12, 2009
      Likes Received:
      Trophy Points:
      City, State:
      Missouri Ozarks
      Year and Model:
      2004 XLT
      As a bit of an aside, sink and floor drains usually contain liberal amounts of grease, soap, and hair. Grease is loosened by acid, but hair and soap are not; they respond to the OPPOSITE of acid, highly BASIC materials, like LYE (sodium hydroxide).

      The gunk collecting in O2 tip slots is carbon-containing, mixed with oil, and acid probably WILL aid in cleaning it. Damage to sensor? Unknown. No experience with this.

      Be careful with muriatic acid, especially if concentrated, it EATS flesh!

    Share This Page

    Click Here

    We Support Our Troops!