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Gen 3 Prius rough cold start plus slow coolant loss

CruiseOwnerCommunity StarterNov 18, 20252013 Toyota Prius ThreeNYC / Long Island
Older Prius has developed a rough shake for a few seconds on some cold starts and the coolant level seems to be dropping slowly. I don't want to assume the worst. What test sequence would separate ignition, EGR/intake issues and an internal coolant leak? I'd rather test this logically than start replacing parts.
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HybridPilot13Community StarterCommunity StarterNov 19, 2025permalink
I'd want competing paper, not competing stories. A written buyer’s order on the 2013 Toyota Prius is worth more than any verbal “we’ll make it work.” If they balk, that's your answer. Stop there until you know. Not trying to scare you — just skip the expensive first guess. PPI guy I use is booked until next week, so I'm waiting.
CleanRunnerCommunity StarterCommunity StarterNov 19, 2025permalink
I'd slow the salesperson down here. I would not wire money until I've seen the 2013 Toyota Prius and the title situation in person or via a trusted PPI. Then the comparison gets honest. This is from a 2013 Toyota Prius in NYC / Long Island. If you share a photo of the worksheet, easier to sanity-check. I'm keeping receipts and dates in one folder.
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