Re: How To Replace Thermostat 2.5L (1999)
Well I picked up motorcraft thermostat at O'Reilys today and I got the same thermostat you got. When you compare it to the original I pulled out, it seems kinda chinsy like the aftermarket one so I'm a little disappointed. I'm going to install it though and see how it works. I'd suggest people buy it directly from ford or somewhere online to get the 1 that seems better quality to me (ys4e-8575-ab or RT1148). But thanks for putting this thread together. It should be able to help out many people.
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current - 2001 2.5 5spd 3.73 XLT reg cab short box 165K
dead - 2001 2.3 5spd 3.73 XLT reg cab short box 70K
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