2009 Jeep JK Wrangler 3.8L with a whole 12,784 miles on it. DTC's......
P0456......Small EVAP leak detected.
P0455......Large EVAP leak detected.
The shops Snap-on Solus Ultra doesn't support freeze frames on this vehicle
I like to know what the ambient temperature & fuel level is when EVAP faults occur.
It does support a Large Leak quick test buy pulsing the purge solenoid to create a low vacuum on the Tank/EVAP plumbing.....It failed.
*This should be easy....Right?
Found a pretty large leak at the EVAP System Integrity Monitor Switch (ESIM) that's mounted to the Charcoal Canister using my Smoke Machine. Thought it was just the seal....But applying some dielectric grease to the seal didn't slow it down one bit & the seal looked pretty good.
Ordered a ESIM, Installed it....No more leak at that location via the smoke machine & re-running the quick test resulted in a pass.
My smoke machine still showed a .015" leak.....I HATE Evaporative system repair comebacks, It makes me feel amateurish. The tool is blatantly telling me there is still a leak!
The Shop Foreman/Service Writer was trying to rush me because we're months backlogged....We butt heads on a constant basis, But I held my tongue & didn't Pop-Off something smart as I've already been written-up a couple times in the last year.
I'm used to being Shop Foreman & he IS Shop Foreman, So some of the blame for the friction between us is on me! However....
I OWN my jobs, diagnostics, & workmanship.....I refuse to compromise that! Him trying to convince me it's fixed would be completely forgotten when it comes back with EVAP codes!!
I couldn't find a leak anywhere while Strictly looking for smoke, So I decided to go "Old School" & spray every connection down with Soap & Water with my smoke machine providing the pressure.
Gas Tank filler neck inlet is cracked.....Why use a different kind of plastic for the filler neck connection?
P0456......Small EVAP leak detected.
P0455......Large EVAP leak detected.
The shops Snap-on Solus Ultra doesn't support freeze frames on this vehicle
It does support a Large Leak quick test buy pulsing the purge solenoid to create a low vacuum on the Tank/EVAP plumbing.....It failed.
*This should be easy....Right?
Found a pretty large leak at the EVAP System Integrity Monitor Switch (ESIM) that's mounted to the Charcoal Canister using my Smoke Machine. Thought it was just the seal....But applying some dielectric grease to the seal didn't slow it down one bit & the seal looked pretty good.
Ordered a ESIM, Installed it....No more leak at that location via the smoke machine & re-running the quick test resulted in a pass.
My smoke machine still showed a .015" leak.....I HATE Evaporative system repair comebacks, It makes me feel amateurish. The tool is blatantly telling me there is still a leak!
The Shop Foreman/Service Writer was trying to rush me because we're months backlogged....We butt heads on a constant basis, But I held my tongue & didn't Pop-Off something smart as I've already been written-up a couple times in the last year.
I'm used to being Shop Foreman & he IS Shop Foreman, So some of the blame for the friction between us is on me! However....
I OWN my jobs, diagnostics, & workmanship.....I refuse to compromise that! Him trying to convince me it's fixed would be completely forgotten when it comes back with EVAP codes!!
I couldn't find a leak anywhere while Strictly looking for smoke, So I decided to go "Old School" & spray every connection down with Soap & Water with my smoke machine providing the pressure.
Gas Tank filler neck inlet is cracked.....Why use a different kind of plastic for the filler neck connection?