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p0741 another one

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I bought a 99 deville recently and have many issues I will have to fix(already fixed some stuff)including the p0741. I noticed that when I start the car right after the car starts it makes a screeching sound for about 2 seconds and I can feel like something is grinding and then it goes away. so my question is if anyone with the p0741 issue had a similar experience with that sound oe is this totally a different issue not connected with the p0741 issue.

Note this only when i start the car.

Also should I change the coolant or do a complete flush?



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That code should have nothing to do with a screeching noise. Check your belt pulleys.

All you should need is to drain and refill, 50/50 Dex and distilled water.

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