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It's the egr passage inside the intake manifold, its plugged. Pull the egr back off and use wire to clean the passage there the intake. Brake cleaner alone ain't getting it out. If you open throttle body you can see where it comes out.
The_machine80 beat me to it. The intake passages clog up where the hot exhaust gas meets the cool intake air. Some models require removing the intake manifold to fully remove the carbon buildup, others require replacing the manifold and/or pipes for the egr. If you don’t have the extra $ I’d pull it apart and get long brushes and some foaming intake cleaner from an auto parts store. The chemicals are real nasty so definitely wear gloves. Best of luck to you!
Thanks for posting in r/Mechanic, u/Legitimate-Amoeba975! Please be sure to read the [Rules](https://www.reddit.com/r/mechanic/about/rules/). If you're asking for help, be sure to include as much detail as possible so others can help you. You **must** include the vehicle's **Year, Make, Model, and Engine size** in your post! If your question is transmission related, please be sure to specify your Transmission Type(Auto/Manual) as well! If your post does not include this information, it **will** be removed. Asking about prices is **not** allowed in this sub. Please make sure you have selected the correct post flair; if you're asking a question you should have chosen "Question", anything else use the "General" flair. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/mechanic) if you have any questions or concerns.*
It's the egr passage inside the intake manifold, its plugged. Pull the egr back off and use wire to clean the passage there the intake. Brake cleaner alone ain't getting it out. If you open throttle body you can see where it comes out.
What he said. The carbon is going to be harder than a wedding prick, spray cleaner won't do it.
The_machine80 beat me to it. The intake passages clog up where the hot exhaust gas meets the cool intake air. Some models require removing the intake manifold to fully remove the carbon buildup, others require replacing the manifold and/or pipes for the egr. If you don’t have the extra $ I’d pull it apart and get long brushes and some foaming intake cleaner from an auto parts store. The chemicals are real nasty so definitely wear gloves. Best of luck to you!
Time to delete it
We breathe gasoline not diesel
EGR delete time!