Hi,
I have a 2005 Pilot EX-L. When I bought it in Dec05, I noticed the engine coolant reservoir was essentially empty. I called the dealer and they said to just put any type of coolant in there. Thus I poured in Prestone (green), which mixed with blue Honda coolant. No problems from that...Pilot has 20000 miles on it.
Last month, the area near the timing belt makes a noise that's kind of like when a smooth running fan suddenly has a clog or something for 1/4 the turn, and has to force itself to turn. so the sound is lke there's something holding back the timing belt such that its not a silent spin anymore. you could say there is a small squealing noise, but not constant or loudly annoying.
i'm wondering, what are the signs that a water pump is bad or going to fail? and if it was ok to mix Prestone green 50/50 with the blue Honda coolant?
please let me know thanks