Evap leak?? Plenum?
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Professional
Joined: Jul 2011
Posts: 138
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From: Livonia,MI
Evap leak?? Plenum?
Okay so last summer my engine light came out, turned out to be a small evap leak somewhere, never worried about it, 6 months ago light went off, came back on 2 weeks ago, scanned it.......evap "large leak" , was going to have a shop smoke it for 60 bucks but this morning the light went off......i have checked mostly off the vac lines.... i know i posted about my plenum awhile ago with pics and it had some black residue but no pooling i could see...could this C.E.L be on because of the plenum?
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Joined: Apr 2010
Posts: 87,400
Likes: 4,214
From: Clayton MI
Nope. Evap system captures evaporating fuel out of the tank, stores it in a charcoal canister, and then routes it to the intake at various times while the engine is actually running. Something as simple as the gas cap being loose can set codes.....
On your truck, canister is behind the passengers seat, under the cab. The hose like to dry rot, and crack, which will give you leaks, which then set codes. Check all the lines front to back, see what you find. (and make sure the gas cap is good, and on tight.)
On your truck, canister is behind the passengers seat, under the cab. The hose like to dry rot, and crack, which will give you leaks, which then set codes. Check all the lines front to back, see what you find. (and make sure the gas cap is good, and on tight.)
Thread Starter
|
Professional
Joined: Jul 2011
Posts: 138
Likes: 0
From: Livonia,MI
Nope. Evap system captures evaporating fuel out of the tank, stores it in a charcoal canister, and then routes it to the intake at various times while the engine is actually running. Something as simple as the gas cap being loose can set codes.....
On your truck, canister is behind the passengers seat, under the cab. The hose like to dry rot, and crack, which will give you leaks, which then set codes. Check all the lines front to back, see what you find. (and make sure the gas cap is good, and on tight.)
On your truck, canister is behind the passengers seat, under the cab. The hose like to dry rot, and crack, which will give you leaks, which then set codes. Check all the lines front to back, see what you find. (and make sure the gas cap is good, and on tight.)