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Car is showing 3 error codes
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L. Stacy
Novice
Mar 8, 2020, 10:02 AM
Post #1 of 10
(1345 views)
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Car is showing 3 error codes
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Hey all,
2016 Buick Encore, 23,873 miles, 1.4 engine. Definitely misfiring, though intermittent. Check engine light illuminating steady with these error codes: P0171, P0496 & U0109. Nothing wrong with gas cap. Towing it in to the dealership next week, but just curious what you all think the issue/issues might be.
Thanks for your insight!
L.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 8, 2020, 12:11 PM
Post #2 of 10
(1337 views)
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Re: Car is showing 3 error codes
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Low mile & fairly new it's possibly been manhandled doing some other service - IMO. It can't communicate for fuel pump now so others are from that most likely,
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 8, 2020, 12:29 PM
Post #3 of 10
(1332 views)
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Re: Car is showing 3 error codes
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The important code here is the P0171. That is a lean condition that needs to be found. The EVAP code isn't effecting the running and the other code is a communication code with one of the modules somewhere.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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L. Stacy
Novice
Mar 8, 2020, 12:43 PM
Post #4 of 10
(1328 views)
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Re: Car is showing 3 error codes
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Thanks, guys. Also wanted to mention that a few seconds after I turn the ignition off, the car shakes a little and the engine rumbles.
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 8, 2020, 1:39 PM
Post #5 of 10
(1320 views)
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Re: Car is showing 3 error codes
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That's an indication that you have a bad vacuum leak causing dieseling which would be the cause of the lean code.
If anyone has recently done anything to the engine double check that they didn't leave any hoses disconnected.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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L. Stacy
Novice
Mar 8, 2020, 3:02 PM
Post #6 of 10
(1313 views)
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Re: Car is showing 3 error codes
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Thank you. I did have a new engine cradle put in after an accident last year, but the engine itself was fine.
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 8, 2020, 3:07 PM
Post #7 of 10
(1311 views)
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Re: Car is showing 3 error codes
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No, I was thinking more like replacing an air filter or oil change.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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L. Stacy
Novice
Mar 8, 2020, 3:18 PM
Post #8 of 10
(1303 views)
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Re: Car is showing 3 error codes
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Gotcha. Had both of those done in December.
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L. Stacy
Novice
Mar 10, 2020, 5:14 PM
Post #9 of 10
(1277 views)
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Re: Car is showing 3 error codes
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Just wanted to provide an update. Dealership installed a new purge valve. Car runs as good as new!
Thank you to everyone for your suggestions and input. I very much appreciate it.
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 10, 2020, 5:34 PM
Post #10 of 10
(1275 views)
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Re: Car is showing 3 error codes
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Yep, that was your vacuum leak. Thanks for letting us know.
I'll close this now as solved.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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