Message from sigruna14 in MacGuyver - Skills & Academics #mechanics
Privacy is an American tradition
Inspections are gay. If your state does inspections then you live in a commie state. Also I tint all of my vehicles also.
@here My car normally idles at <1000 but today on the way home from work it started idling at like 2000. I figure it's gotta be some kind of vacuum leak but I'm not sure how to find that, other than spraying flammable substances all over the engine which I'm not too sure about. Anyone have an opinion on whether this is safe to drive like this?
Maybe you fellas can help a brother out
Propane is the safest way to go, or a static smoke test
I mean, it could be a lot of things. Hard to know where to begin our if I should just let the shop deal with it.
well if its just a stuck throttle that's a pretty easy fix
What year make and model?
If it means anything, first I noticed it was rolling down the other side of a bridge in 3rd at 35, so revs were a little high, I was using the higher revs to help keep my speed down.
When I put it in neutral at the traffic light I noticed the revs were still up and I was like... Uuhhh... Wtf?
I would remove the throttle body and clean it with throttle body cleaner. And remove the mass air flow meter and clean it with MAF cleaner.
Yeah like a i said last night youll wanna remove that plenum and visually inspect the tb to make sure its not sticking open, and remove the iac to make sure the pintle isnt sticking open
Btw is the MIL on?
Btw, since the IAC is what the computer uses to adjust the TB, shouldn't the problem have gone away when I unplugged it?
No lol the computer adjusts the pintle in the IAC on idle to keep it smooth so it doesnt surge. If its sticking open, like mechanically stuck the ecm wont be able to adjust it and the idle will be high
Most the time when they stick they stick just a little open and the car surges or it sticks shut and it wont idle at all or it will but super low
If the cars at 2000rpm unplugging it wont matter anyway because youre off idle
Ill be at work in a few mins and ill email you some Identifix test plans real quick so you can mess with it today
To bad it isn't obd2 would be much easier to pinpoint. But I agree I would start with tb and or iac
Also there is a sticker on the TB that says not to clean it because there is a special coating.
If it's the IAC pindle sticking that's causing this, should physically removing the IAC from the TB and then starting the car make the symptom go away?
No dont do that lol
Youll have massive unmetered air
The car wont even start
Ok if the TB says not to clean it, then just make sure nothing is keeping the blade open, but id take that IAC off and clean it real well
Sorry i didnt get a chance to send you any test plans, today was busy as shit