The whole thing with the non-cleanable throttle bodies came out of continual problems with the older EFI and SEFI units. The opening between the throttle plate and the throttle body was calibrated to the engine. Sludge or crud buildup would compromise that. The throttle bodies were redesigned starting around 1992 to be non cleanable. The plan was to seal around the edges of the throttle plate with a long lasting material and use a calibrated hole near the middle of the throttle plate to allow the air bleed for idle. I attended several training schools for resolving drivability complaints at the training facility in Mt. Laurel, NJ. The general consensus according to Ford engineering was to leave the throttle bodies alone. They were intended to be good for the life of the engine. Cleaning them at the time did void warranty coverage on them. Of course, once you hit 50,000 miles, warranty was no longer an issue.
Some do get away with cleaning them, but it is not recommended. I have personal experience with two vehicles that went completely bad after having had throttle bodies cleaned. One was a 1993 Taurus that I had. Previous owner had apparently cleaned the throttle body. Engine would race up to 3000 rpm while driving in traffic for no apparent reason. Replaced ISC motor, no help. Replaced throttle body, problem solved. There were other symptoms that went along with the engine racing. There was surging at cruising speeds, erratic idling, and frequent stalling. Replacing the throttle body solved all of the problems. Another was an F150 owned by a friend. They got all gung-ho one day, changed the plugs, wires, and filters and cleaned the throttle body. That truck never again ran right until the throttle body was replaced.
You can do as you like with your own vehicle. No skin off my nose. I'm just passing along what I learned over the years. I would never advise anybody to clean a throttle body on a Ford. I would feel as if I were doing a great disservice to them.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
Latest Ad:
1945 Farmall wide body gas with pto and front plow. Runs good but needs new points.
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
