Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > How-to Section > Engine & Drivetrain
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 12-27-2010, 07:01 PM   #1
Formerly "ZCHPRO"
 
ProZach's Avatar
 
Join Date: Jul 2010
Location: Chandler
Posts: 1,965
Mentioned: 0 Post(s)
Thanked 22 Times in 13 Posts
Feedback Score: 0 reviews
Default How to Clean your throttle body + MAF

Well I was having trouble with a low idle and wanted to replace my tb because of it. Some members on the forum suggested otherwise and while it didn't help with my low idle I have heard it helping rough idles and codes involving the throttle body.

*DISCLAIMER* This is what is necessary for tb cleaning on an 04-08 f150 model 5.4 3v. Other vehicles may differ but the idea is the same

Here's what you will need for this project
8mm socket
10mm socket
1 socket wrench
1 can of throttle body cleaner ( I used CRC brand)
DO NOT USE CARB CLEANER ON ANY TB, IT WILL DESTROY THE TEFLON COATING ON THE BUTTERFLY VALVE
1 Can of MAF sensor cleaner (CRC brand)
t20 security screw bit
paper towels
1 old toothbrush (You can use other brushes just don't use ones with metal in them)
optional- air compressor
patience and spare time- about 40 minutes if you're good at this kind of thing

Steps:
1: Pop your hood and use the 8mm socket and wrench to loosen and remove the negative battery cable
2.Next remove the 10mm socket holding on the tube for your air intake
Click the image to open in full size.
3. Remove Air filter, Air Filter Tray, and Air Filter housing by loosening the 4 bolts and the base of it with your 10mm socket and wrench. *NOTE* In the filter housing you will see something that plugs in using 2 t20 torx screws. If you wish to only clean your MAF this is where it it. Simply disconnect the electrical wires and clean the MAF as outlined in the later steps
Click the image to open in full size.
Click the image to open in full size.
4. On the side of the housing there are two connections. One is for the mass aif flow sensor or MAF and the other is some kind of tubing on the passenger side of the housing. Remove the MAF using the t20 security screws and by unclamping the electrical connectors. The tubing on the passenger side has a small green security latch that just needs to be push down in order to release the tubing.
5. Your engine bay should look like this now
Click the image to open in full size.
6. Again using the 10mm socket and wrench loosen the four bolts that are holding your throttle body on. Also make sure to loosen the throttle body position sensor and Idle Air control connectors that are secured to the throttle body. Your removed throttle body should look like this
Click the image to open in full size.
Your engine bay should now look like this
Click the image to open in full size.
*NOTE* Place a clean rag over the opening that is exposed in your engine bay to avoid anything falling in. If you feel the your engine bay is a little dirty you can use an air compressor to blow out some of the dirt that has collected in some of the folds BUT MAKE SURE that while you're blowing the crap out that you hold the rag securely over the opening to avoid any dirt of foreign particles from entering the engine.
7. Using your TB cleaner spray lightly inside the throttle body, making sure to move the valve back and forth to let the cleaning agent work. Now take your toothbrush and/or rag and clean out/off all of the sludge.
*NOTE* make sure not to spray any of the cleaner into the electrical connections for the IAC or TBPS.
When its clean the TB should look similar to this
Top
Click the image to open in full size.
Bottom
Click the image to open in full size.
8. Although I have no pictures, cleaning the MAF is just as simple. Make sure it is disconnected while cleaning it and that you do NOT touch any of the wires as this will cause premature failure and you will have to purchase a new maf ($130+ for this truck)
Following the directions I did 15 bursts of the MAF cleaner by CRC onto my MAF sensor. After that I took the air compressor and blew out the Sensor in order to ensure that it was dry (don't plug it in until it is completely dry as that can also cause failure)
9. Install everything in the reverse order and start your vehicle. With mine it took a little extra cranking compared to usual on the first 2 starts so don't worry if yours does the same.
10. Start the truck, this may take more cranking than normal because a little of the cleaner will get into the engine. This is normal and nothing to worry about. Crank the engine as long as you normally do, if it doesn't start quit cranking, wait a few seconds and start again. Once started.....
11. Follow the owners manual procedure for helping your vehicle's computers to relearn how to operate. for f150's the steps are as follows
a. Turn on your vehicle and allow to reach normal operating temperature
b. let idle with radio and ac off for one minute
c. while still idling turn ac on and let idle for one more minute.
d. drive the vehicle at different speeds for a minimum of 10 miles in order to help the ECU and PCM relearn your driving habits.

Last edited by ProZach; 02-07-2011 at 06:42 PM.
ProZach is offline   Reply With Quote
The Following 9 Users Say Thank You to ProZach For This Useful Post:
808901 (01-19-2014), adanvjr (06-08-2013), danwelsh (05-05-2013), dnlow (06-07-2014), G Diablo (02-09-2014), Gurnetman (02-26-2013), palmetto (11-16-2012), ronmon (02-11-2014), Wizzard (04-27-2013)
Old 01-07-2011, 06:12 AM   #2
Meaner than Ymeski
5 Year Member
 
bobkyle2's Avatar
 
Join Date: Oct 2009
Posts: 22,787
Mentioned: 36 Post(s)
Thanked 729 Times in 432 Posts
Feedback Score: 0 reviews
Default

great write up!!!!! did you ever figure out your idle issue...im having the same problem
__________________

Click Here for instructions on uploading pics!
My 08F150's life
My Chevy K5 build thread.
bobkyle2 is online now   Reply With Quote
Old 01-08-2011, 02:04 AM   #3
Formerly "ZCHPRO"
 
ProZach's Avatar
 
Join Date: Jul 2010
Location: Chandler
Posts: 1,965
Mentioned: 0 Post(s)
Thanked 22 Times in 13 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by bobkyle2 View Post
great write up!!!!! did you ever figure out your idle issue...im having the same problem
pretty confident its a PCM reflash that I need which i heard is about $85.
however since my tuner is fixing it right now I would rather put the money toward rhino lining or desperately needed fixes like the new IWE solenoid and passenger side motor
ProZach is offline   Reply With Quote
Old 01-15-2011, 09:28 PM   #4
Senior Member
 
Join Date: Feb 2009
Location: Las Vegas
Posts: 151
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Very detailed write up! Great job and beneficial to those who don't know what they're doing when cleaning the throttle body and maf, follow this guide and you'll be okay!
AusFx4 is offline   Reply With Quote
Old 01-16-2011, 02:09 AM   #5
Formerly "ZCHPRO"
 
ProZach's Avatar
 
Join Date: Jul 2010
Location: Chandler
Posts: 1,965
Mentioned: 0 Post(s)
Thanked 22 Times in 13 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by AusFx4 View Post
Very detailed write up! Great job and beneficial to those who don't know what they're doing when cleaning the throttle body and maf, follow this guide and you'll be okay!
did you do it?
ProZach is offline   Reply With Quote
Old 01-16-2011, 07:14 PM   #6
Senior Member
 
Join Date: Feb 2009
Location: Las Vegas
Posts: 151
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I knew how to before this write up, but its great for those who don't know how
AusFx4 is offline   Reply With Quote
Old 01-16-2011, 07:19 PM   #7
DIY
 
picaflor's Avatar
 
Join Date: Sep 2010
Location: South Florida and NYC part time
Posts: 1,334
Mentioned: 0 Post(s)
Thanked 9 Times in 6 Posts
Feedback Score: 0 reviews
Default

thank you. i did this following your instructions and also clean the MAF.

heads up that to in order to get the MAF, you dont need to remove the throttle body, as it is the one mounted in the 5.4 V3 TRITON cover.
__________________
2005 F150 SuperCrew Lariat 5.4L V8 Triton 4x2
I survived the change of broken spark plugs in the F150....
But my transmission didn't make it to 75000 miles....
picaflor is offline   Reply With Quote
Old 01-17-2011, 03:44 AM   #8
Formerly "ZCHPRO"
 
ProZach's Avatar
 
Join Date: Jul 2010
Location: Chandler
Posts: 1,965
Mentioned: 0 Post(s)
Thanked 22 Times in 13 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by picaflor View Post
thank you. i did this following your instructions and also clean the MAF.

heads up that to in order to get the MAF, you dont need to remove the throttle body, as it is the one mounted in the 5.4 V3 TRITON cover.
sorry about that, probably should have made that a little more clear, I'll fix it.
ProZach is offline   Reply With Quote
Old 06-18-2011, 12:35 PM   #9
Senior Member
 
Chacka's Avatar
 
Join Date: Oct 2010
Posts: 364
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Thank you so much for this write up. After 175k miles on my 04 it threw it's first check engine light. I ran the code, and it was the low idle code. I followed the steps and it appears that at almost 20 miles later it fixed it. My throttle was really nasty. Thanks again.
__________________
04 4 door F150 5.4
93 mustang dps coupe lots of goodies.
02 Mazda Tribute
Chacka is offline   Reply With Quote
Old 06-18-2011, 01:13 PM   #10
Member
 
Join Date: Apr 2011
Posts: 64
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I was gonna clean my throttle body but once I got the intake pieces off and could see into the tb it didn't look all that dirty so I didn't bother. Should I still have cleaned it? Even yours in the pictures above didn't look all that dirty.
Mitsumotors is offline   Reply With Quote
Old 06-18-2011, 01:13 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
After market throttle body + throttle body spacer Greg_8507 General F150 Discussion 35 11-15-2013 09:57 AM
gonna clean my throttle body. tips? JorgeRod54 2004 - 2008 Ford F150 25 02-07-2011 08:45 PM
throttle body Execut1ve 1987 - 1996 F150 35 11-12-2010 11:45 PM
Throttle Body Jamesck Introductions 0 05-09-2010 10:56 AM
throttle body? rampage12 1997 - 2003 Ford F150 9 04-11-2009 02:23 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 12:08 AM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.