Waterpump and timing belt replaced recently and....

[01ptcruze]

So I just took my pt and had the waterpump and timing belt done at the dealership and they told me I am goin to need a idle air control motor and a serpentine belt tensioner mind you I take good care of this car and never had any issues with it idling high it's around 1700-1800 when it used to idle at most 1000 this is after I picked it up do you guys think someone advanced timing a little to much or they messed up the idle air control?

[ptcruisersteve]

Need more information.

What year is your PT Cruiser?
Is it an automatic?
Is the idle rpm at 1700 the same with the engine cold and at normal engine temperatures?

[Renegade]

Isn't the IAC just a valve, not a motor? I recall taking my out and cleaning it with carb cleaner once.

Having changed the tensioner just yesterday on my wife's PT, I can say it's a pretty easy and cheap job to do too.

[01ptcruze]

It's a 2.4 non turbo auto and it wasn't doing that when I brought it to them and it does it when it is cold and warm sitting at a light and the car sounds like it's racing and I hate shutting it off with it idling that high just wonder if it's the timing being advanced I never heard of a iac motor heard of valve but that's it I am mechanically inclined so I guess I will buy a valve see if it fixes it

[01ptcruze]

I'm glad it's easy to change anything I should know before I do it?

[JoeX]

There are no adjustments for timing, I would be looking for a leaking air hose.
The idler on the AC/Power steering pump belt is something I do with all my timing belt changes.
If you get the idle down to 650 and it runs rough, timing is probably off a tooth.

[Renegade]

Originally Posted by 01ptcruze

I'm glad it's easy to change anything I should know before I do it?

Just that you need to put a new belt on with the tensioner as the old one will have warped to the old tensioner and won't sit right on the new one. I was able to pick up both parts for about $40 at the auto parts store. You need a 10mm socket for the splash guard cover and a 15 mm wrench for the tensioner.

Here's a video walk through:

[01ptcruze]

K will do I will check it out tomm and let you guys know wat I found thanks for everyone's help

[01ptcruze]

Well took the idle air control valve out and cleaned it with carb and choke cleaner which it was filled with a whole lot of carbon out it back in and started it up and now it idles at 2100rpm in park and neutral and then it gets to a point where it drops to 1500rpms then starts fluttering and making the engine feel like it is going to die so needless to say I ordered a brand new one

[ptcruisersteve]

I would suggest you check to see if the PCV is working properly.