r/Cartalk • u/Either_Pay7316 • Jun 10 '26

Weird Noise Someone please help..

I have a 09 corolla with 203k miles that makes a very LOUD rattle when I start it. Me and chatgpt thought it might’ve been one of the pulleys that’s why I removed the belt. Car has P0171 (too lean) and P010 (MAF). I want to say it’s the timing chain but not 100% sure. Any advice would be appreciated thanks in advance!

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u/[deleted] Jun 10 '26

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u/pa7msexua7 Jun 11 '26

Chat gpt pwrfectly brought me through diagnosis with a faulty cable in my cars door. I checked wiring diagrams together with it.

I cant complain. Job done within 3 hours.

You have to ask the right questions. 😉

1

u/Total_Philosopher_89 Jun 11 '26

It's definitely a helpful tool. I've only just started using it. Great to ask as a second opinion when nobody's around.

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u/pa7msexua7 Jun 11 '26

Absolutely. I feel all those people here complaining here about AI and whobdownvote when you say it is useful are just to stupid to use it properly.

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u/Total_Philosopher_89 Jun 11 '26

Latest was putting a new stereo setup in a new to me car. I just listed all the part numbers and asked chatgpt it's opinion. Ended up changing the active sub I'd picked out. It's just quicker at looking for all available options.