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I hate evap leaks #987163
05/06/11 02:23 PM
05/06/11 02:23 PM
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
1968RR Offline OP
top fuel
1968RR  Offline OP
top fuel

Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
I remember a few years back having my check engine light turn on in my 2002 Dodge Ram (3.7 L). I recall that the evap leak code came up and that I bought a new gas cap. Also, I vaguely remember being angry at myself for buying a new gas cap because I discovered the major (and obvious) source of the leak a few days later.
The dreaded evap leak code has returned again, and now I can't remember what the source of it was last time (I've already checked the gas cap and that's not it). Anyone have any ideas about what I should check? If not, does anyone know how to build a time machine so that I can go back and ask my younger self how I fixed the problem last time?


"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
Re: I hate evap leaks [Re: 1968RR] #987164
05/06/11 02:29 PM
05/06/11 02:29 PM
Joined: Apr 2010
Posts: 10,570
Sunny South Florida
Golden-Arm Offline
I Live Here
Golden-Arm  Offline
I Live Here

Joined: Apr 2010
Posts: 10,570
Sunny South Florida
do you know where to get a flux capacitor?


"When Tyranny Becomes Law, Rebellion Becomes Duty"

Re: I hate evap leaks [Re: 1968RR] #987165
05/06/11 02:49 PM
05/06/11 02:49 PM
Joined: May 2003
Posts: 3,017
N.W. Florida
F
Fat_Mike Offline
master
Fat_Mike  Offline
master
F

Joined: May 2003
Posts: 3,017
N.W. Florida
Try to hang with me here. I have no idea what the parts are that I'm about to describe.

On my 2001 Ram 1500, behind the rear door on the passenger side, there's a metal box with a couple rubber hoses leading to it. My evap leak was right there...the larger of the two (or three) hoses.

Re: I hate evap leaks [Re: Fat_Mike] #987166
05/06/11 03:05 PM
05/06/11 03:05 PM
Joined: Apr 2011
Posts: 450
owensboro, ky
rallye73 Offline
mopar
rallye73  Offline
mopar

Joined: Apr 2011
Posts: 450
owensboro, ky
Check the hose going to the leak detection pump. Also check the hose going to the purge solinoid. Both are prone to the hoses splitting out around the ends when they get some age to them. Doesn't take much of a leak to throw a code.

Re: I hate evap leaks [Re: rallye73] #987167
05/06/11 03:07 PM
05/06/11 03:07 PM
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
1968RR Offline OP
top fuel
1968RR  Offline OP
top fuel

Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
Quote:

Check the hose going to the leak detection pump. Also check the hose going to the purge solinoid. Both are prone to the hoses splitting out around the ends when they get some age to them. Doesn't take much of a leak to throw a code.



I've checked the hoses going to the evap system (mine is on the driver's side), but I didn't notice leaks. If I remember correctly, the leak that I found long ago was under the hood. Where is the purge solenoid? Is that near the evap canister or under the hood?


"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
Re: I hate evap leaks [Re: 1968RR] #987168
05/06/11 03:26 PM
05/06/11 03:26 PM
Joined: Aug 2009
Posts: 739
Anderson, IN
1
1969RR Offline
super stock
1969RR  Offline
super stock
1

Joined: Aug 2009
Posts: 739
Anderson, IN
Hello, You need to find a shop with a diagnostic smoke machine. I've found and fixed a bunch lately. Jeff

Re: I hate evap leaks [Re: 1969RR] #987169
05/06/11 04:26 PM
05/06/11 04:26 PM
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle Offline
pro stock
racealittle  Offline
pro stock

Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
Just had this issue with my 2007 Caliber.

When I googled the code for tips on how to fix, the answer was: don't replace the gas cap, get to the dealer, you need a dbrIII scanner and a smoke test machine. The tests will have to be done mutiple times to confirm.

In my situation is was the solenoid and the detector that failed. All rubber was good. They also reflashed the computer with updated firmware.

I noticed the improvement in the firmware. The car acts and feels better.


Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen! Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!






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