HCS Snowmobile Forums - View Single Post - 2016 and 2017 pro s 800ís with coolant leak
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Old 11-26-2017, 01:31 PM   #3 (permalink)
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patrioticinnovations's Avatar
Join Date: Sep 2005
Posts: 14,619
Current Sled(s): 2015 AXYS Pr-S SB Ann 800, 2019 Indy 850.
Previous Sled(s): 2003 XCR 1100, 2000 XCR 800, 2005 Redline Revolt 800.
Location: SE Lower Michigan
Favorite Riding Area: Cadillac, Gaylord
19-20 Mileage:
18-19 Mileage: 849 so far
17-18 Mileage: 1280
16-17 Mileage: 1115
Riding Since: 1982

First, is the coolant bottle showing low?

Second, if not, then might be from previous bleeding done at dealer.

Third, if it is, then there can be several potential places for leaks.
1. T-stat housing area
2. Exhaust valve area hoses.
3. Waterpump hoses/clamps in front down low.
4. Heat exchanger hoses behind engine.
5. Throttle body entry and exit hoses.

Any air bubbles will not normally cause leaks. Just possible overheating which can cause leaks from the bottle overflow hose.
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