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My car run perfectly when I start it but after 30 min from driving it become very weak and the engine sound become higher also the performance become very bad I checked the fuel pump pressure it is good

Answers from the Automotive Experts

Jessica Howe, Automotive Expert & Coach at


Thank you for writing in. There are several issues that can cause an engine to bog down and have performance issues. The vehicle will need to be tested when the issues are occurring to definitively tell what is wrong. Common complaints for the vehicle that have similar symptoms are a faulty PVC valve and a bad throttle body assembly. If any warning or check engine lights come on when the vehicle starts to lack power, you will want to start by getting your vehicle scanned for diagnostic codes. This can be done at most automotive part stores for free. Only further testing will tell. Good luck!

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