Question about 1990 Ford F150

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Trunk has no power

We were having problems with the truck heating up so we changed the water pump and thermostat. got a new battetry cause the others kept dying. Starter got stuck in the run position and would keep turning. They attributed that to the starter cylinoid so we changed it. Now we cant even get the lightsle and then to turn on. It ran for a while and then did the same thing. What could it be?

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Probally a blockage in the radiator,you have to have the radiator recored at radiator shop,cheaper than buying new,if you have no lights Im assuming no power?its probally with the cylinoid must have a wire wrong

Posted on Jul 12, 2008

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I read your problem and what you have done to try and rectify the problem. Let me say this first. You did a great job of trying to fix this over heating problem. There is only a couple other things to check or have done to solve this overheating problem. Only other things it can be that cause it to over heat is Number one, make sure your temp sensor is operating proper, you can have this checked by any repair shop, they will check with a amp meter. And assuming you do not have a head gasket leaking, which would cause over heating, what i would do is have the radiator system flushed, and put under pressure. Reason for this, is a lot of times, radiator gets some what partially clog, this is due over time from not proper antifreeze and water ratio. Internal parts and coils of radiator become partially clogged as things break down inside. First thing, i would suggest if to have radiator flushed and then see if it flows correctly via the new thermostat you just put in, and of course the water pump is providing the proper flow of operation. If that does not work, have them check the coolant sensor, to make sure it is triggering correctly to allow the thermostat to operate normally. I hope this helps, Thank You, Mike
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