EVAP question
#1
EVAP question
I smoke tested my truck in class for a lab i had to do and I noticed the vapor management valve (VMV) was leaking. part of it is about 3.6" in diameter and it is leaking where the two halves snap together.
since this valve lets intake vacuum draw in fuel vapor, is the VMV leaking also causing an engine vacuum leak? im not sure if this "diaphragm" looking thing is on the intake vacuum side or evap side of the valve.
since this valve lets intake vacuum draw in fuel vapor, is the VMV leaking also causing an engine vacuum leak? im not sure if this "diaphragm" looking thing is on the intake vacuum side or evap side of the valve.
#4
The amount of fuel vapor compared to the amount of fresh air the engine is using is so small, i dont think it would have any impact if any at all on fuel economy.
when i look at my short term and long term fuel trim percentages, they are both adding fuel, to me that suggests a vacuum leak
when i look at my short term and long term fuel trim percentages, they are both adding fuel, to me that suggests a vacuum leak
#5
#6
Thread
Thread Starter
Forum
Replies
Last Post