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Ocassional bizarre RPM spike while starting?

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Re: Ocassional bizarre RPM spike while starting?

Post by Kara503 » Mon Jan 22, 2018 4:15 pm

I would just like to jump in and say- I own a 2000 V70 XC that does the exact same thing- It always starts hard (sounds like 1-2 cylinders fire, then nothing, then all catch all in the span of about 2 seconds). About 30% of the time the tach will spike up to 2.5K RPMs. I recently replaced my ECT sensor and it did not fix the problem. Different platform, but hopefully that helps.
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