I noticed on the puddymud thread regarding the block off plate install the guy removed the iac lines to the intake manifold.

I know this is an old trick, but I have also heard on new cars it can cause problems.

Sometimes it's more problems that it's worth.

Chime in if you have removed or have any other experiences.

Thanks in advance!!

 

pretty sure it depends on where you live. if your in really cold climates it might be more necessary. i live in south florida. the coldest i can remember is 45 degrees. and if its that cold, i am driving my tahoe.

here, its ussually hot as can be, so i dont need coolant heating up the intake mani even more then it already will get from hot ass air down here.

if anything, you should see some slightly cooler intake temps, or they might take longer to get heat soaked.

 

I don't drive the car when it's cold either. However it could get as low as 50-60 degrees before I put it away...cools off fast in the evenings during the fall...

Curious how it would have an affect on everyday driveability ?

 

IDLE AIR CONTROL valve.

How are you going to control idle air..

Did you mean just the coolant lines that run too it?

 

if you are talking about the coolant lines, then yes i removed mine. I noticed a 10-15 degree drop in IAT's after removing the lines through the intake plenum. I DD my car and occasionally when the car is very cold i will let the car out of gear and the car will just die. Cleaning out the IACV before removing the lines will help with this issue.

 

the coolant lines chief.

 

The coolant is run through the IAC to prevent it from icing.

Don't expect the car to idle like stock after you remove the lines.

 

that would depend on your climate though. mine idles just fine, though i never see ambient temps below mid 40's.

 

It's more than just outside temp, but humidity as well.

A carburetor can "ice" in warm weather, same principle.

 

well then let me correct my previous post. in my climate where ambient has never dropped below mid 40 degrees, but typically is between 70-90 degrees and in south florida which is extremely humid, mine has never iced and car has never had a problem idling with those lines removed.