I'm not positive, but I think that an '88 should have a two-speed fan. Is it the ceramic resistor that actually controls the kick-in of the fan? Lately, I think that my fan only kicks on just before the point at which the engine's ready to overheat. When it does, it sounds like a C-130 takin' off! So, I believe that the low-speed setting is being passed up. Sound right? Anyone know how to test? I checked the archives, but did not come up with the two-speed hypothesis, just how to see if the fan works. Also, I changed my thermostat a few months ago, and I have noticed the temperature needle riding higher than before, but, I'm not sure exactly how these two things really affect each other. In other words, I don't see the harm of the engine running at a slightly higher temperature, as a matter of fact, I bet it's a little more efficient that way. But, I would think that the fan would just have to kick on low speed a little more often. |
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