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2020 Gladiator gas cap warning

Keith Shelnutt

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I'm getting check gas cap message. Gas cap is good, replaced with new. What is the next common reason you would have a vacuum leak or loss of vacuum?
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Gvsukids

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I'm getting check gas cap message. Gas cap is good, replaced with new. What is the next common reason you would have a vacuum leak or loss of vacuum?
Tighten the cap.
 

Frankiestoys

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Had this happen on my brand new Mojave
Dealer claims it was just. a fluke.
I brought it back and they said some about resetting it. It came back on so I called them back and made another appointment. It went off the next day and has never came on on . All that said it’s a cheap plastic cap … I think it spins inside it’s self so you really have to be sure it’s tight
 

Alaska-HWY JK

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Our 2020 started that a while ago. I knew it wasn’t the gas cap as I’d switched with other Jeep. Bought an E-SIM and purge valve. Put in E-SIM, alarm was gone in a block from house. Used code reader to clear P0456 P0457 and 1 other. All good now and have purge valve for when it fails (as they do).
 
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Keith Shelnutt

Keith Shelnutt

Active Member
First Name
Keith
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Kentucky
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Gladiator Rubicon
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1
Our 2020 started that a while ago. I knew it wasn’t the gas cap as I’d switched with other Jeep. Bought an E-SIM and purge valve. Put in E-SIM, alarm was gone in a block from house. Used code reader to clear P0456 P0457 and 1 other. All good now and have purge valve for when it fails (as they do).
Thanks
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