Re: Check Gascap Message
[Re: a12rag]
#3033196
04/13/22 02:49 PM
04/13/22 02:49 PM
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Joined: Nov 2003
Posts: 10,228 Colleyville
3hundred
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 10,228
Colleyville
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My 2006 Magnum RT AWD is bringing up "Check Gascap" message in the EVIC . . . it's not setting any codes or turning on the MIL (check engine light) . . . just that darn message . . . I have put a NEW gas cap on the car, no change . . . any ideas would be appreciated . . . I know it has to do with the EVAP emissions, but there aren't any codes coming up . . . everything else totally 100% with the car . . .
Thoughts . . . .?????
Thanks There's a leak in the evaporative system. Find someone with a smoke machine to locate the leak, probably an old rotten hose?
'68 Fury Convertible '69 300 Convertible '15 Durango 5.7 Hemi '16 300 S Hemi
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Re: Check Gascap Message
[Re: GarageDodge]
#3033299
04/13/22 06:31 PM
04/13/22 06:31 PM
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Joined: Jan 2004
Posts: 4,585 Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,585
Motor City
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My 2012 Challenger does it once awhile. After a few days it goes off and stays off for several months until it reappears again someday.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: Check Gascap Message
[Re: IMGTX]
#3033403
04/14/22 12:11 AM
04/14/22 12:11 AM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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Under the hood is usually a green cap. I have see them down low near the frame too.
Follow the lines to and from it looking for obvious problems. Those lines should go back to the tank and charcoal canister. I have had people crack the canister's with rocks or ??? so I JB Weld (Plastic Weld) the cracks and good to go. A quick look may save the cost of a smoke machine or smoke test.
Exactly the situation in my case. 2005 grand cherokee 5.7. Evap code and eng light. My buddy smoke tested it at his shop and found the charcoal canister had cracks on it. Vee’d them out and jb welded. All good. Passed inspection. Would have never found it as it was cracked on top of canister. Saw smoke coming from wheelwell area and led us to that location to find it.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Check Gascap Message
[Re: mopars4ever]
#3033442
04/14/22 09:33 AM
04/14/22 09:33 AM
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Joined: Jan 2003
Posts: 10,759 North Dakota
6PakBee
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I Live Here
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North Dakota
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If you research the protocol for the "gas cap alarm", you'll find that it is a fairly complex system. Is it all worth it? I can't see the rational behind it but who am I to question the EPA.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: Check Gascap Message
[Re: 6PakBee]
#3033471
04/14/22 10:36 AM
04/14/22 10:36 AM
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Joined: Jun 2004
Posts: 3,394 St. Charles, MO
wingman
Uncreative Title
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Uncreative Title
Joined: Jun 2004
Posts: 3,394
St. Charles, MO
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I had a Dakota pickup built during that same era that would kick that alarm/code frequently.
It was usually a split/cracked rubber hose under the car. There are a bunch of them running the length of the car to and from the gas tank, charcoal canister, purge solenoid, etc.
They could be a pain to locate--I didn't have a smoke machine.
Seemed to me there was an issue with the hoses they were using at that time--very poor quality and always cracking.
1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)
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Re: Check Gascap Message
[Re: wingman]
#3033487
04/14/22 11:39 AM
04/14/22 11:39 AM
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Joined: Jan 2003
Posts: 75,095 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,095
A Banana Republic near you.
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I had a Dakota pickup built during that same era that would kick that alarm/code frequently.
It was usually a split/cracked rubber hose under the car. There are a bunch of them running the length of the car to and from the gas tank, charcoal canister, purge solenoid, etc.
They could be a pain to locate--I didn't have a smoke machine.
Seemed to me there was an issue with the hoses they were using at that time--very poor quality and always cracking. The lines running under the car usually are not rubber, they are usually a hard plastic, the only rubber is connections between the hoses and any right angles . Check the fuel fill pipe, if it is exposed enough to road mist/debris while in motion the tube will probably be corroded pretty bad, even if you live outside the rust belt ... case in point my new to me 1998 Ram 2500 that I got out of Arkansas , there all it's life and only 172k miles , the filler pipe is corroded as bad as my 2000 Ram 2500 that's spent all it's life in New England.
running up my post count some more .
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Re: Check Gascap Message
[Re: a12rag]
#3033511
04/14/22 12:43 PM
04/14/22 12:43 PM
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Joined: Jan 2003
Posts: 25,995 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
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Posts: 25,995
Rio Linda, CA
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My '08 Magnum RT did the same thing and also threw a P0456 - EVAP SYSTEM SMALL LEAK code, turned out to be a faulty ESIM (Evaporative System Integrity Monitor) located under the right rear wheel well cover. Need a smoke machine to find the leak.
The INTERNET, the MISinformation superhighway
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Re: Check Gascap Message
[Re: 360view]
#3034108
04/16/22 12:38 PM
04/16/22 12:38 PM
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Joined: Jan 2003
Posts: 21,546 N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
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Posts: 21,546
N.E. OHIO, USA
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Good tips in this thread.
Chrysler EVAP systems certainly seem to leak.
How many years/miles does the EPA require the emissions related equipment warranty to be?
My fuzzy memory is that it was 100,000 miles but got bumped higher? Vehicles with California emissions equipment have an additional separate warranty mandated by the state of California of 7 years / 70,000 miles from when the vehicle is first put into service, whichever comes first and regardless of ownership. This warranty covers many more parts than the federal warranty. There are also some vehicles that have emission parts covered well beyond the 8 years / 80,000 miles afforded by the Federal Emissions Warranty.Performance Warranty The Performance Warranty covers repairs which are required during the first 2 years or 24,000 miles of vehicle use (whichever first occurs) because the vehicle failed an emission test. Specified major emission control components are covered for the first 8 years or 80,000 miles (whichever first occurs). If you are a resident of an area with an Inspection and Maintenance (I/M) program that meets federal guidelines, you are eligible for this warranty protection provided that:There are three specified major emission control components, covered for the first 8 years or 80,000 miles of vehicle use (whichever first occurs) on 1995 and newer vehicles: • Catalytic converters • The electronic emissions control unit or computer (ECU) • The onboard emissions diagnostic device or computer (OBD)
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