aoakwood
New member
02 Viper has always ran great, only overheated in very marginal snow conditions, or when towing other sleds. Last ride of season in March, I noticed a small puddle of coolant under sled on throttle side, just between exhaust and heat exchanger on running board. No obvious leaks. No missing studs. I started it in garage and it didn't leak again until the motor was shut off. Any idea where I start, in order to diagnose?
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check the front heat exchanger and inspect to see if damaged from studs
WNYViper
New member
can also check the water pump weep hole, ya know where the coolant is ending up, who knows where it could be coming from... worse comes to worse it could be a rub through of the coolant line under the motor...
livewire_101proof
Member
ive also had the coolers under the foot boards leak. sand and stuf gets inbetween the tunnel and the cooler on the inside edge about half way back, and as the boards flex it wears through the cooler like sandpaper, usually when it does that the leaking coolant runs downhill to the front of the cooler and drips right at the front of the cooler. can get new ones but i have had them welded up before and thew held up fine. it is reccomended to have a rear cooler if you run in alot of marginal snow, with vipers, that will take care of the overheating. i have not tested this idea but i notice that the coolers are actually a little thinner on vipers than in the ol srxs and other sleds out there, my thought is that may also help to swap them out for the thicker ones. i also think that stiffening up the running boards to minimize the flexing during aggressive riding will help prolong the coolers before this happens. good luck, cant wait for snow again.
How full is the coolant tank? If it is too full coolant will spit out coolant when the motor is hot and then turned off. There is a hole in the bottom of the belly pan right in the area that you describe where the coolant is dripping from. Inspect all the hoses and clamps. Might be as simple as a loose clamp.