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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Help identifying part

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Old Sep 25, 2015 | 10:40 AM
  #1  
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Help identifying part

My F150 is leaking coolant from what appears to be a senor or sending unit above the oil filter. What exactly is that? Thanks.

Truck specs in sig.
 
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Old Sep 25, 2015 | 12:04 PM
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If you're talking about the small sender on the intake, that is the sender for your temp guage.
 
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Old Sep 25, 2015 | 12:20 PM
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Not on the intake, it's a few inches north of the oil filter.
 
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Old Sep 25, 2015 | 12:44 PM
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Please post a pic, can't see anything on my 5.8 in that area
 
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Old Sep 25, 2015 | 05:44 PM
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EPNCSU2006
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My first thought is it is leaking coolant from the timing cover to block gasket and dripping off of the oil pressure switch.
 
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Old Sep 25, 2015 | 08:37 PM
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I will try to get a picture, thanks.

And that is a very good possibility, Eric. I initially thought that's what it was, but after replacing a hose to the throttle body a lot of the leak cleared up near the thermostat housing. I thought I was out of the woods.. Maybe not.
 
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Old Sep 26, 2015 | 08:59 AM
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This is a relatively unmolested shot of my 94 5.8 showing leaky timing cover/water pump back plate. Hope it helps.

 
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Old Sep 27, 2015 | 09:56 AM
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^ Thank you! That's the area the leak is in.. Is it worth pulling the water pump, or is that not going to fix anything?
 
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Old Sep 27, 2015 | 11:57 AM
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If you need a timing chain, water pump, pump back plate or balancer, front crank seal, etc, now would be a great time to just do it. Clean everything, use good gaskets, I didn't break any bolts, but then mine was a clean, mostly dry area southern truck. Be careful if you go as deep as the timing cover & don't drop junk in the pan. You can look through one of my albums at what I just broke down and did after getting tired of smelling antifreeze cooking off from the front cover like it seems all SBFs of this gen do. I recently did all the front gaskets again + the pan just because I had the engine out.
 
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