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Old 01-12-2011
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Cooling Issues - Kinda Strange

Hello gentleman,

This is my first post on RF and I'm excited to be a member.

1999 Ranger 3.0 Auto Trans. (195k Miles)

Over the summer (june 2010) I my truck overheated and it was due to low coolant. I found the problem (see first picture). The gasket behind the front main seal must of went bad, and its a very very slow leak. So ever since I just top my coolant off ever month. From the looks of it, the H20 pump, main pulley setup and everything must come off to fix that gasket. And i was told once those crank sensors are removed you need to buy a new one. Any input?



My second issue deals with my coolant gauge in the cluster. After I realized my coolant leak I did a full flush and ever since the gauge was acting kinda odd. It currently doesn't move from the "cold" position, even when the truck is warmed up. I am getting good heat and My Scanner reads ~ 185 degree coolant temp.

The other day when I turned my truck off (~ 5 Minutes) to fill up, I came back in and turned it on and the gauge moved up to normal operating temp, but as i drove away the gauge fell back to the cold position.
(here is a picture)

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Old 01-12-2011
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idk about that crank sensor. but you could have a bad water temp sensor
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Old 01-12-2011
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the gauge is caused by a bad "ecu temp" sensor its like 5-10 bucks any place will have them
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Old 01-12-2011
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Originally Posted by acemavrick View Post
the gauge is caused by a bad "ecu temp" sensor its like 5-10 bucks any place will have them
Where is the sensor located?
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Old 01-12-2011
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should be right on or near the front of your water pump and RIGHT near ur thermostat at least it is on my 92 3.slow
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right below the thermostat housing...on the intake manifold iirc....should be pointing towards the radiator. Thats where my 05 3.0 has it
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Old 01-14-2011
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You may want to live w/ the coolant leak. The timing cover gaskets as fun as it looks. I replaced mine a few weeks ago for the same problem though.
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Old 01-14-2011
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Originally Posted by always dirty View Post
You may want to live w/ the coolant leak. The timing cover gaskets as fun as it looks. I replaced mine a few weeks ago for the same problem though.
How long did it take? did pretty much all ecessories have to come off?
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Old 01-14-2011
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I think total time was something like 9 hours. Wish I had kept track, but I stretched it out over a week. Luckily I had another vehicle at the time. Yes, pretty much everything has to come off. I got creative w/ some bungee cords and tie downs so I didnt have to remove the AC compressor and PS pump, I just hung them out of my way. If you dont do this kind of stuff often, this is going to seem pretty daunting, but its doable.
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