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2004 Chev Monte Carlo Code P0135
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nemismom
New User
Aug 26, 2011, 12:08 PM
Post #1 of 2
(4850 views)
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2004 Chev Monte Carlo Code P0135
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I have a 2004 Chevrolet Monte Carlo SS with a V6 engine. I am getting the check engine light on sporadically. I called Onstar and they said it had to do with the emissions, power train or fuel system (narrows it right down). Code is P0135. I am having no trouble at all with the car. Any ideas before I take it to the dealer? Mileage is about 71,600. Only warranty left is the emissions system. Thanks.
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 26, 2011, 12:22 PM
Post #2 of 2
(4837 views)
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Re: 2004 Chev Monte Carlo Code P0135
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The heater is burnt out in the upstream O/2 sensor for bank 1. Replace the sensor and you should be good to go.
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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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