DODGE RAM FORUM banner

1 - 3 of 3 Posts

·
Registered
Joined
·
92 Posts
Discussion Starter #1
'04 5.7l has small evap leak. I made a smoke machine, but need attach advise, to check canister vent vave, propotional vent valve, purge valve, gas cap, gas tank top connections and hose routings. Need locations, and best approach. Smoke will show my problem. The truck runs rough and idles low, about two hundred. I am replaceing #7 injector, then will move on to smokin the evap system. Just need some advise.
 

·
Registered
Joined
·
901 Posts
Usually in engine bay small green cap. Most times I have seen it it is on passenger side back by firewall.
 

·
Registered
Joined
·
92 Posts
Discussion Starter #3
TIPM is in front of battery, the PURGE valve was stuck open. That is lower next to tipm. Gas vapor was escaping out the vent hose eng, which is behind engine bottom on driver side..
I had pulled the P-valve double hose connector and applied the smoke. It was blowing out the vent. Meaning it was stuck open, and caused ruff idle and poor performance mileage.
Replacement P-V was $68. I consider myself lucky in that the fumes did not ignite.
 
1 - 3 of 3 Posts
Top