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Discussion Starter #1
I want to replace my leaking transmission line. I went to pepboys I purchased 10ft of Dayco fuel line 5/16. Is fuel line ok to use???? is there any difference between fuel line and transmission line.


Thanks

Al
 

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Fuel line is fine! That's what i used on mine.
 

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Discussion Starter #3
I just replaced the transmission lines today and the hose worked fine. I used fuel injector line clamps. Also replaced the sparkplugs.

Got everything done in under 90 minutes.

Al
 

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Keep an eye on that hose I have read here ans elsewhere that Fuel line will not stand up to tranny fluid for long. I don't know if that's a fact or not but and ounce of caution is worth the cost of a new transmission!
 

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I wasn't aware that there was specific line used for the trans fluid???
 

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they are different but cost just about the same
 

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This thread discusses the merits of fuel line hose, fuel injection hose and transmission line cooler hose. As I am looking to change out my radiator, radiator hoses and transmission line cooler hoses, I've been researching the specification of the above-mentioned hoses. It seems there is a wide specification difference and pressure rating between the three hoses and I thought other Titan owners might like to see the spec comparisons that I obtained from the Dayco website that deals with the automotive hoses. Based on my reading, I would be very cautious about using fuel line hose. Automotive hose specifications can be found here: Passenger Car and Light Trucks Parts - by Dayco
 

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I bought 25' of Goodyear transmission cooler hose and it is pretty thick wall stuff w/ reinforcement, spec is also 250 psi working and 1,000 psi burst (like Dayco). Goodyear fuel line is also lower rated for pressure at 50/250 working/burst.

Cooper Standard Automotive apparently made some defective Nissan hoses. I guess it can get exciting if the hose bursts and sprays ATF on the exhaust manifold.

Defect Investigations Results | Safercar.gov | NHTSA
 

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Fuel line hose isn't up to the pressures normally associated with automatic transmissions. Use the proper stuff. If that thing splits or blows loose and hoses down any portion of your exhaust system hot enough to ignite it, your truck could end up burned to the ground. I've seen it happen more times than I care to think about at the drag strip. This isn't an area you want to cut corners in.
 

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mcginkleschmidt, great post! I would not have expected the transmission line to have a higher PSI rating than fuel line. Glad I read this thread as I'll be changing out the cooler lines on my Ranger soon.
 

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None of the local AutoZone and Advance Auto Parts had the Dayco brand of transmission oil cooler hose in stock but one of the close Autozone stores had the Goodyear 5/16" transmission oil cooler hose in stock, AutoZone Part #50281, Goodyear Part #65211. This stuff was unbelievably cheap at $1.19/ft., so I bought a seven foot length of hose to make sure I don't run short. The Goodyear hose is thick-walled hose so I may need the buy the next size up from 5/16" fuel injection hose clamps to accommodate the extra hose thickness. The Goodyear Oil Cooler Hose spec sheet is attached below.

After giving the Autozone counter person both the AutoZone and Goodyear part numbers, he cut and brought out a piece of generic fuel line hose that I promptly rejected. I found that as a buyer you need to be very specific when buying transmission oil cooler hose. Otherwise, you may well end up with the wrong hose if you are not mindful of what you are getting.
 

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Yea, that's the same thing that happened to me @ Autozone, but i didn't know any better. The guy gave my Goodyear 5/16" fuel line & that's what i used... When i get a CSF radiator im going to replace all the hoses again anyway. :)
 

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I went to a store recently, looking for a Flasher, and the guy tried to sell me a Relay because it looked the same! Be careful out there.

Consider purchasing a 25' Box, you may save an awful lot, and have some to share or sell cheap! Look for a place like a Federated Store, that sells and delivers to repair shops. They will sell the boxes, that Auto Zone etc. does not.
 
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I replaced all the transmission lines and all the radiator lines this weekend. Pepboys only had the fuel line so I purchased some ... OOPS ... I was able to find the correct stuff at a different parts house. Its thicker and will hold up better to the detergents in the tyranny fluid.

BY The way ... there is a radiator line under the fan clutch that was the worst of all the hoses that I removed ... Do not for get that one.

Number 7 in this picture .. Part number: 140567S001

 
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Ive used fuel hose for many years for tranny cooler lines.....never a problem. I would buy the heavier duty hose if u can find it, but i wouldnt consider it critical to have. Does anybody know the pressure in the tranny cooler lines? I did a flush on my other car recently, left the line open to drain fluid out, and the pressure in these lines are not that high. The fuel line hose is almost comparable to what the factory uses for tranny cooler hose
 

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mcginkleschmidt, great post! I would not have expected the transmission line to have a higher PSI rating than fuel line. Glad I read this thread as I'll be changing out the cooler lines on my Ranger soon.
The fuel hose your referring to is not for fuel injection systems, that why the pressure is lower
 

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Local Autozone has the Goodyear 65211 line in stock. I'm picking up a few feet and extra to have laying around.
Now, what about the radiator hoses, anyone replace those with something different or just reuse the ones on there?
 

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There are three radiator hoses. I replaced everything with Dayco hoses. I got them at Advance Auto. They are part numbers E72303, D71995, and B70854.
 

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Local Autozone has the Goodyear 65211 line in stock. I'm picking up a few feet and extra to have laying around.
Now, what about the radiator hoses, anyone replace those with something different or just reuse the ones on there?
rad. hoses are pre -formed to the correct shape for a clean install with no kinks
 

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rad. hoses are pre -formed to the correct shape for a clean install with no kinks
Some of them are. If you aren't careful you can buy one that is a "flex" hose. It is not preformed. It's a universal fit. Right. I buy the ones that are specifically molded for the vehicle I'm putting it into.
 
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