Cleaning Throttle body and IAC

[XJMJeep]

My 1988 Comanche Renix 4.0 has had a very low and rough idle for awhile now, then it started dieing at stoplights so time to clean!

This is actually a very easy job to do and as long as you have a set of Torx bits (As a Jeep owner you do have a set... right?) it only costs the price of a can of carb cleaner.

First, remove the breather tube.
It's the black slinky looking thing.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1418.jpg

Next unhook the wiring, three plugs and done.
Now remove the entire throttle body, three Torx bolts and it's off.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1407.jpg

Throttle body before.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1403.jpg

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1404.jpg

IAC before.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1405.jpg

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1406.jpg

I cleaned them with a tooth brush and carb cleaner, did a good job.

Throttle body after.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1412.jpg

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1413.jpg

IAC after.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1409.jpg

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1408.jpg

Don't forget to clean where the IAC lives.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1415.jpg

After cleaning up everything, put it back together.

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1416.jpg

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1420.jpg

Success!
Love when a project works the way it should.
The Comanche went from idling around 300 to 400 RPM and dieing to this!

http://i1205.photobucket.com/albums/bb432/XJMJeep/1988%20Comanche/100_1427.jpg

Well worth the hour or so it takes!

:thumbsup:

[cantab27]

nice wee write up mike with pics...a+++:thumbsup:

one question....
said toothbrush , how do you sneak the wife's one outta the house with out her knowing........:

[XJMJeep]

nice wee write up mike with pics...a+++:thumbsup:

one question....
said toothbrush , how do you sneak the wife's one outta the house with out her knowing........:

She don't know yet..... :mel:

[ALS XJ]

Nice write up...I'll bet my '92 could use a quick clean as well...Thanks!

[89Laredo]

60psi in a renix?!
Wow

Sent from my DROIDX using Tapatalk 2

[XJMJeep]

60psi in a renix?!
Wow

Sent from my DROIDX using Tapatalk 2

It's no where near that, hangs out around 40 must be the way I'm holding the camera

[89Laredo]

Lol
Mine is 20psi at 55.