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Waterpump leak ? If DIY, pressure test to be sure . . . Posted by Mark in Marine [Email] (#1837) [Profile/Gallery] (more from Mark in Marine) on Thu, 8 Feb 2018 07:42:28 In Reply to: Does this sound like a waterpump?, Bmwjoe, Thu, 8 Feb 2018 03:41:02 Members do not see ads below this line. - Help Keep This Site Online - Signup |
If by "right side" you mean the right as viewed from the driver's seat, then yes, it sounds a lot like a water pump or water pump O-ring leak. It could also be a leak from lower radiator hose or the radiator end cap.
BUT I have found it not so hard to pressure test the systems on these cars and confirm where it is leaking. For sure if I had a shop do this, I would describe the leak and have them test before replacing the wrong part.
Will you DIY this ? If so, consider doing a pressure test. Do this ONLY with engine FULLY Cold. Take off the splash guard under the bumper to see everything. ONLY apply up to 10 PSI or so, not all the way up to the system rating - gauges may have some error, and you don't want to create a new leak. If you don't have an official pressure tester, you can use a brake pressure bleeder (or similar) to do this - the easy attachment point is the return hose from the top of the radiator to the coolant pressure reservoir (where you fill coolant). You will need some 1/4" fuel hose and two "airplane" clamps. Remove that coolant hose and plug it - a 1/4" socket extension with a clamp will work. Then attach a piece of 1/4" ID fuel hose to the barb on the reservoir, and clamp it in place. Use that hose to attach your pressure bleeder (clamp that too) - with nothing in it but air, of course. Pump carefully to no more than 10 PSI as noted above, and look for your leak.
No guarantee - but this worked for me. Hope you find / fix your leak !
Mark in Marine
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