hi guys. i have a high idle in my 85 gt 2.8 and also very poor fuel millage and i was searching for causes so i read this.
"One of the most common spots for a vacuum leak is the EGR tube. About the easiest way to 'check' that one is to cut out the side of a soda can to make a blanking plate."
my question is if i do this and the engine starts to rev better can i leave the piece of can as a solution. or am i going to need to delete de egr? hope someone can help me.
One of the easiest ways to check for a leaking EGR tube is to try to wiggle it after starting the car (engine cold -- you don't want to touch a hot one). If it has a leak, you will hear a changing hissing sound as you wiggle the tube. Another check is to spray starting fluid on the EGR tube. If that causes an increase in RPM, you have a leak. Both of these checks are easier than installing a blocking plate, which must be on the manifold end of the tube to do any good.