How often should I clean the IAC?

[Dr Fildo]

I am thinking of cleaning the IAC and throttle body. I've never done this before. Will it make much of a difference? Sometimes I get a hard starting condition, like it isn't getting enough air or fuel and it just catches when the starter is disengaged. Not a solid start at all. I'm pretty sure the fuel pressure is ok, although I've never actually checked it. I changed the fuel filter about 3k miles ago. Runs pretty smooth once started, but idles low and very occasionally it will stall or almost when shifting from park to reverse or drive.

I have cleaned the MAF, but didn't notice very much difference. I have just over 170k - don't remember when the last time it was in an actual mechanics shop for repairs...if ever. And I know I've never cleaned the IAC or throttle body.

 

[5.0kid]

go ahead and clean them, it won't harm anything to try that. do be careful with the wires on the IAC if exposed at all, and make sure you check the electrical current of the IAC when you put it back on if taking it off.

 

[2slo95fiveoh]

go ahead and clean them, it won't harm anything to try that. do be careful with the wires on the IAC if exposed at all, and make sure you check the electrical current of the IAC when you put it back on if taking it off.

X2.. Also check the simple stuff. Spark plugs, wires, cap, rotor etc..

 

[Dr Fildo]

Thanks fells. I'll let you know how it turns out. She's not starting at all today.

 

[Paul]

The IAC is a very unlikely culprit for hard start.


Leave everything alone. Clean it/replace it if something actually breaks.

If it ain't broke, don't fix it.