I have a leaky hose that appear to be coolant that is just above coil #3 and #4 on passenger side?

Tiny
ROYCAR71
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  • 1997 FORD EXPEDITION
  • 270,000 MILES
Holiday Greetings all. This is my first post. I have a ford Expedition 2wd 5.4Liter Triton. I have a leaky hose that appear to be coolant that is just above coil #3 and #4 on passenger side. What would be proper procedure to replace it? I have used gasket maker silcone pase, which appeared to slow it down. Also some special magic tape at autozone. Now, I have found a part at "Rockauto" that appears to be what I need.
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Tuesday, December 27th, 2011 AT 3:18 AM

13 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
I'm guessing the hose goes between the radiator and the coolant bottle, with one end going to the thermostat?

Drain the radiator into a catch basin. Loosen or remove the clamps. Remove the hose. Twist and pull.

DON'T drain the coolant onto the ground. Most areas in the U.S. Doing so will net you a hefty fine.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
ROYCAR71
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Im confused. This portion of hose comes from inside dash all the way assuming to radiator. I thought I could cut portion with box cuter and clamp ends.

P.S. Replacement hose does not go that long as hose that need replacing.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
RIVERMIKERAT
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Unless there are metal or plastic pieces between hose sections, if the replacement hose doesn't go the whole length of the installed hose, you have the wrong hose. Replacement hoses are exact replacements. If you want to splice what you have in, you're welcome to do so. But, you can't clamp one end of a hose over another end. They'll just separate. You have to have something solid to clamp to.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
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What if I use 3 clamps on all side of T part of existing hose will that contain leak. It is coming from bottom end of T part.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
RIVERMIKERAT
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I'm not sure. I don't know how the piece or junction is constructed. It's not going to work if the plastic junction is leaking or if there isn't enough depth on the junction piece to clamp onto.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
RIVERMIKERAT
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This is what I found for the hose I think you're talking about.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
ROYCAR71
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I will try the clamp method. It appears to be leaky from bottom of T part of hose. I guess adding so pressure might stop. It.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
ROYCAR71
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"rivermikerat" my hose does not have those other hose attachment on T partion hose
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
RIVERMIKERAT
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I can't locate a parts listing that looks like the hose you showed in the first set of images. I found a similar one at Napa Auto Parts. It's listed as the lower radiator hose.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
ROYCAR71
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I believe this is same hose. It it just turned upside down. Do not know why they call it lower radiator hose, since it on passenger side next firewall/battery housing and above coil 2, 3, 4.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
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It's at the rear of the engine compartment, closest to the side by the passenger compartment? That's usually a heater hose that far back, not a radiator hose.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
ROYCAR71
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Thanks for the help. What did was go to autozone and buy T hose 5/8 and 3 clamps replaced the middle section "T part of hose" were leak was. Sofar everything is working.
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Monday, June 28th, 2021 AT 5:12 PM
Tiny
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Yep. Heater hose, not radiator hose. Radiator hoses are usually 1.5 to 3" diameter.
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Monday, June 28th, 2021 AT 5:12 PM

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