What's involved in removing the throttle body on a 4.3 ? Today I sprayed some TBI cleaner in it as directed and wiped out the base of the body and the carbon was loaded in there, I mean loaded, so I was thinking to remove the whole unit and clean it thoroughly. The truck runs new, but, I want to get this crap out and maybe it will run even better, with a 100k on the clock, any suggestions?

 

[ol]1. Disconnect the negative battery cable.
2. Disconnect the IAT sensor harness connector.
3. Disconnect the breather tube from the air cleaner outlet duct.
4. Remove the air cleaner outlet duct retaining wing nut.
5. Loosen the clamp on the outlet of the MAF sensor.
6. Lift the air cleaner outlet duct from the throttle body and remove the assembly from the MAF sensor.
7. Remove the air cleaner adapter stud.
8. Disconnect the cruise control cable from the throttle body.
9. Disconnect the accelerator cable from the throttle body. [/ol]
[ol]10. Remove the nuts retaining the accelerator cable routing bracket and position bracket aside.
11. Remove the stud and nuts retaining the accelerator control cable bracket and position bracket aside.
12. Disconnect the IAC valve harness connector.
13. Disconnect the TP sensor harness connector.
14. Remove the throttle body retaining studs.
15. Remove the throttle body assembly.
16. Discard the throttle body seal. [/ol]
[ol]Pics are uploaded steps 1,2,3,4 (5 no pic),6[/ol]

[IMG]local://upfiles/10186/36AFB30304344D2BBADB1C8C260DD2BA.gif[/IMG]

[IMG]local://upfiles/10186/875D2CF681AD4DF390C96C9DA59D5763.gif[/IMG]

[IMG]local://upfiles/10186/E8223CD8A869495D8ACAB522DECE8E92.gif[/IMG]

[IMG]local://upfiles/10186/80164A1F62234339AF965E4BF468DADB.gif[/IMG]

[IMG]local://upfiles/10186/5BAB5BD209574F9EB7F0EA7D861F172F.gif[/IMG]

 

Steps 7,8,9,10,11

[IMG]local://upfiles/10186/0D8106EEC89B4325977382C350945EA4.gif[/IMG]

[IMG]local://upfiles/10186/18A9FA584B1C4C60A3A682653254B59F.gif[/IMG]

[IMG]local://upfiles/10186/B93B3ECAA5C14C1CA924F9442794967F.gif[/IMG]

[IMG]local://upfiles/10186/7CFA1DF62AE04B8AA887111C63BCFEC9.gif[/IMG]

[IMG]local://upfiles/10186/31F5985979CE48B0BF9F661E12A9E541.gif[/IMG]

 

nice pic's - thanks

 

made a DIY here: https://blazerforum.com/m_185850/mpa.../tm.htm#185850