Do I have a vacumm leak?
#1
TECH Veteran
Thread Starter
Join Date: Aug 2002
Location: Hartsdale, NY
Posts: 4,055
Likes: 0
Received 0 Likes
on
0 Posts
Do I have a vacumm leak?
The engine takes a long time to return to idle - say 30 seconds after you come to a red light.
I did a quick check but could not find any obvious leaks.
How is a leak detected and where should I look first?
There is a big metal pipe in back of the throttle body that is probably a good candidate; right?
I did a quick check but could not find any obvious leaks.
How is a leak detected and where should I look first?
There is a big metal pipe in back of the throttle body that is probably a good candidate; right?
#3
TECH Fanatic
Throttle blade gummed up? Clean out the throttle body, the blade doesnt need to sparkle, just make sure where the blade meets the bore when its closed is clean of oil and carbon.
#4
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,010
Likes: 0
Received 1,462 Likes
on
1,054 Posts
Doesn't have to be a vacuum leak, might just be the IAC motor not responding properly.
I'd hook up a scanner and look at idle LTFT values and IAC numbers as a first step.
I'd hook up a scanner and look at idle LTFT values and IAC numbers as a first step.