Showing posts with label Repair. Show all posts
Showing posts with label Repair. Show all posts

Repair IACV ( Idle Air Control Valve )

1) Now you got to locate where the IACV is, pop your hood and it’s located directly behind the intake manifold. It’s actually connected to it. Remove your intake and strut tower bar.

2) Place a couple of rags underneath to catch the coolant spill. Loosen the two hoses running to the IACV with your pliers by squeezing the two clips and moving them away from the end.DO NOT cut the hoses as they are the exact length and you will have to buy new ones if you do.

3) After doing that remove the harness connected to the IACV on the driver side

4) Then to finally remove it from the intake manifold, remove the two 12mm bolts

5) Take your brake cleaner or simple green and start to clean up the inside of the IACV by spray inside the two holes. Continue to do this until no more dirty fluid comes out. Should take anywhere from 5 minutes to 15 minutes. This depending on how old and dirty your IACV is.

6) Once you’re done cleaning out the IACV let it air dry. I let it air out for 20 minutes while I did other maintenance on the car.

Reasons why you should take it apart and clean it:
-High idle after your car warms up
-Lumpy idle
-Roaming idle
-Hunting idle
-Fluctuating idle

Tools Needed:
Ratchet
12mm Socket
Pliers
Brake Cleaner or Simple Green
Paper Towels
A cooled down engine for at least 2 hours

Cleaning Idle Air Control Valve ( IACV )

Throttle body showing "wide open throttle...Throttle body showing "wide open throttle" sensor on the right (Photo credit: Wikipedia)
Do it Yourself for Cleaning IACV

First locate your IACV it looks like this and on D series engines its mounted on the rear of the intake manifold near the throttle body, and on F series engines its mounuted towards the front of the car on the intake manifold near the throttle body

Second remove it, all you need to do is take the 2, 12mm bolts out, disconnect the electrical connection, and your heater lines that run to it. (note put a rag on the heater lines so it doesnt spill everywhere)

Third take some brake cleaner or carb cleaner and spray out the screen, which as you can see is very clogged on my 180K+ D15b8.

Fourth Let it dry, then reconnect your electrical connection, your heater lines, and your bolts and BAM your done.