IACV Cleaning

lawdogg69 said:

I am going to be cleaning my IACV is there any special solvent to do so or will gas work?

Click to expand...

I wouldn't use gasoline. I use electrical cleaner (crc-lectro-motive) or wd-40/crc-556 or a dedicated iac cleaner carried at many auto supply stores. Be aware that most iac failures are not electrical in nature but are caused by wear on the shaft/bushing or gunk. If cleaning works for a short time but the problem comes back it is time to replace the iac.

Using a aerosol cleaner will allow you to spray into the plenum as well.
Might be a good time to clean the MAF also 'eh Roy?

Don't forget to clean the throttle plate and housing.This is always overlooked when cleaning an IAC motor.

electro said:

Using a aerosol cleaner will allow you to spray into the plenum as well.
Might be a good time to clean the MAF also 'eh Roy?

Click to expand...

Yes - if done very carefully. Some maf assemblies are held in by tamper proof torx screws filled with potting compound. Chip out the compound and use a tamper proof torx socket or use a dremel tool to grind out the point or cut a screw driver slot across the top. Use CRC MAF Sensor Cleaner preferred, or carburetor spray cleaner to clean the wire. I use canned air to blow dry the wires. It is not advisable to touch the wires they break easily and a new maf is expensive.

Attached is a Ford tsb about maf contamination.

Roy

royesses said:

I wouldn't use gasoline. I use electrical cleaner (crc-lectro-motive) or wd-40/crc-556 or a dedicated iac cleaner carried at many auto supply stores. Be aware that most iac failures are not electrical in nature but are caused by wear on the shaft/bushing or gunk. If cleaning works for a short time but the problem comes back it is time to replace the iac.

Click to expand...

x2. Test function as per link info.......... Opps! I still can't post links yet. Disconnect IAC while idling at nornal op. temp.. If Idle does not tank, it's pooched!