A solution to the pinging?

[irtySanchez]

As I was scanning over this site Dead Link Removed , I ran across this technique for cleaning carbon from the cylinders. Has anyone ever tried it? Is it a dangerous process, or is it somewhat safe to do with good results?


Here it is:
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I have a '92 Explorer 4Dr., 4WD with 164,000 miles on the clock. It looks and drives like new. I do most of my own maintenance. I purchased my Explorer almost 3 years ago from the original owner who had the vehicle dealer maintained since it was new. There was one problem that I experienced from the time that I purchased it that was begining to drive me nuts. PING!!!! I tried all the solutions mentioned on this page with limited results until I tried the following which completely cured my problem!!!

In my case it would appear that the ping was the result of carbon buildup in the combustion chambers. After trying everything mentioned on this page I narrowed it down to the carbon problem. Here's my fix.

On the left rear corner of the intake manifold is a vacuum port cluster, one of the ports has a simple rubber plug covering it. Remove the plug and attach a 4 foot length of vacuum hose to it of the proper diameter. Fill a 16 ounce soda bottle with warm water. Find a friend to sit in the vehicle. Start the engine and have your friend raise the RPMs to approx. 1200. Now take the end of the vacuum hose and put it in the warm water in the bottle. Feed the engine a little at a time over a 5 minute period. Be careful not to give it to much water for to long so as to stall the engine, you can give it to much of a good thing. Take your time and try to maintain a small cloud of steam coming out of the tail pipe. When the engine starts to idle roughly pull the hose out of the water and let the engine smooth out a bit, add more water through the vacuum hose after it's running smoothly again. Continue this process until you've sucked all the water out of the bottle. Let the engine idle for 5 minutes after this process. While you're waiting you can unhook the hose you connected, replace the plug (don't forget to do this). Now go drive your Exploer and notice the difference. You may need to go through this process twice, I did for best results. In my case my Explorer was so bad before I did this that I needed to run Premium in it all the time and still had a problem with ping. With regular it would ping constantly. Now I can burn the cheapest regular around without ever the slightest hint of ping. The steam cleans the inside of all the combustion chambers and removes the carbon without pulling the heads.

I know this sounds to easy but it works GREAT!!!!

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Any ideas?????

 

[hd1]

The 3-m company also offers a chemical that is designed to remove carbon build up on the intake valves and pistons.It's basically the same idea , and it's more effictive than the water. 3-M sells this as a kit , it's a three step process for around $48.00 and I'm sure there are cheaper companies that offer a similar product for about half the price.When I go back to work tomorrow I'll get the part # for those of you that may be interested. HD1

 

[dinograd]

I tried this to cure the pinging in my '94 XLT. It is okay to do, just be careful not to suck too much water at the same time. As far as results, it did not cure my problem. But I would still give it a try anyway because of the cost factor, FREE!!!!!!!!!!!!!! If it doesn't work for you then you're not out anything, but if it does then great. Good luck.