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Pontiac Grand Prix 2007 Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum CarJunkie New User Dec 11, 2018, 5:02 PM Post #1 of 4 (1491 views) Pontiac Grand Prix 2007 Sign In Hi there, So my check engine light came on today and my car started making this metal grinding/whining sound. I took it to a mechanic that ran the codes. Alot of codes came up, including these 2 discerning ones: p0116 and p1811. What they are telling is that something is stuck in the exhaust and if they can get it out/fix it, it may help with these discerning codes. They are also telling me that since I recently had some battery problems and needed to get the alternator replaced, that could also be the reason these codes are coming up. I guess what I'm asking is, could either of these explanations be the case...or is my transmission just fried and I should cut my losses. I am concerned that I am being gouged for money to fix things that wont make a difference with the main problem at the end of the day. Hammer Time Ultimate Carjunky / Moderator Dec 11, 2018, 5:34 PM Post #2 of 4 (1485 views) Re: Pontiac Grand Prix 2007 Sign In What engine does this have? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. CarJunkie New User Dec 11, 2018, 6:28 PM Post #3 of 4 (1481 views) Re: Pontiac Grand Prix 2007 Sign In A v6 Hammer Time Ultimate Carjunky / Moderator Dec 11, 2018, 6:45 PM Post #4 of 4 (1477 views) Re: Pontiac Grand Prix 2007 Sign In You very likely have a transmission problem that needs to be looked at by a trans shop but first resolve the temp sensor issue because that can cause all kinds of engine problems. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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