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Originally Posted by mykg4orce
What you have described about the fan is true. When hot it doesnt want to spin freely, the opposite when cold. When driving down the highway my temp needle is slight.....ly above the 80degree mark. As soon as I exit the highway, temp goes to about 82 or 84 degrees, well below the center line. And It takes quite a bit of hard and slow driving to bring the temps upto center line. Then if i can get into some open road the temps will drop, but once I pass the point where the electric fans kick in, the temps just keep rising, unless I put it into Neutral and rev the engine to about 4000. Which I won't be doing anymore.
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I am going to suggest you check the radiator thoroughly for blockage, both outside and inside, since this now sounds like it is the most likekly problem. Your mechanical and electrical fans seem to be operating well, and you can maintain temperature at speed, but not well below open road speed. That would tell me that the radiator is only able to keep up with a LOT of air blowing through it, which means that it has lost some cooling area. The blockage could be external, internal, or both. It might be something you can clear, and might be too late and a new radiator might be in your future. Check the radiator, get a second opinon if you can, and let us know.
Best Regards,
Jim