Slow rev recover?
01-23-2007, 09:59 AM
#1
2nd Gear Member
Thread Starter
Join Date: Nov 2006
Location: South Jersey
Posts: 260
Slow rev recover?
Maybe I just didnt notice this before the rebuild, but my engine recovers slowly from a rev.
What i mean is, when the engine is up around 3 or 4 grand, and throttle is released (not in gear),
it is slow to drop down to idle.. takes about a second per 1000 rpms. (4000rpm = 4 seconds to return to idle)
I dont have any other stang owners around to compare to so I thought I would just ask here.
Is this normal for these engines?
What i mean is, when the engine is up around 3 or 4 grand, and throttle is released (not in gear),
it is slow to drop down to idle.. takes about a second per 1000 rpms. (4000rpm = 4 seconds to return to idle)
I dont have any other stang owners around to compare to so I thought I would just ask here.
Is this normal for these engines?
01-23-2007, 12:03 PM
#3
4th Gear Member
Join Date: Oct 2006
Location: Kentucky
Posts: 1,460
RE: Slow rev recover?
I asked this very question yesterday,,no replies....Mine does this,,,but only started after the S/C went on...I'll buy an IAC today....from ford....try that first...I was wondering if the S/C would have caused this.Normally ,,its just an IAC thats slow to retract....(old and slow like me...)
01-23-2007, 01:45 PM
#9
2nd Gear Member
Join Date: Oct 2006
Location: Lakeland, FL
Posts: 243
RE: Slow rev recover?
I have the same problem. I've asked before and I got a reply. The IAC systems. (Idle Air Conterol)
-The idle air control system is used to stablize idle speed during cold enginge and after warm-up.-
There is alot on this... http://www.autoshop101.com/forms/h60.pdfThis should explain everything.
-The idle air control system is used to stablize idle speed during cold enginge and after warm-up.-
There is alot on this... http://www.autoshop101.com/forms/h60.pdfThis should explain everything.
01-23-2007, 02:34 PM
#10
4th Gear Member
Join Date: Feb 2006
Location:
Posts: 1,644
RE: Slow rev recover?
I had the same problem too, it is a mustang thing. It's from the pumping of air back through the egr valve. You can buy a gasket that limits the air and it helps a little. They are on ebay I have one and I could notice, but it still does it. Just do a search on ebay for it. Mine was like 6 dollars. i actually have a spare one if nebody wants it let pm me.