Low pressure P.S. hose?

[frankd]

I am going to replace the high pressure power steering hose in my 75 Chevy truck and need to replace the low pressure hose while I am at it.

What is the advantage to using low pressure power steering hose over fuel injection rubber hose?


I have 3/8 inch fuel injection hose but will purchase some low pressure PS hose if needed.

 

[vw7674]

I'm thinking 3/8" is too little diameter for return line duty. They are usually way bigger O.D. even for pump return.

 

[JMJNet]

I am not sure if the fuel hose will be resistant to P/S or Transmission fluid? That is what you need to research.

 

[Chris142]

I'm thinking 3/8" is too little diameter for return line duty. They are usually way bigger O.D. even for pump return.

Not on this truck. Uses 3/8 and works fine.

 

[wrcsixeight]

I don't know if this is true, but I was told by someone who researches such things, that transmission cooler hose is rated for higher temperatures than power steering return hose.

I used the 3/8 TX cooler hose when I replaced my steering gear last s December, and a Knockoff inline Magnefine with the all metal body, andDual 14-16mm fuel injection hose clamps over that 3/8" ID return hose.

 

[mattd]

Fuel injection hose is not an oil rated hose.

 

[dlundblad]

Fuel injection hose is not an oil rated hose.

Ouch. If this is the case, I need to replace what I have on my Jeep. It’s been in use since early 2018.

 

[CharBaby]

I have always used tranny hose for my low pressure P/S line in place of the steel line when they've started leaking/rotting.

 

[Trav]

Fuel injection hose is not an oil rated hose.

+1 on this and dont let the local parts store sell you heater hose for this application either. 3/8 is very common for this type of return hose.

Amazon.com

 

[Trav]

Ouch. If this is the case, I need to replace what I have on my Jeep. It’s been in use since early 2018.

Some FI hose (not normal fuel hose) are nitrile (NBR) core with a CSM cover which is fine but how would you know unless you researched it beforehand. If you see no softening or deterioration after 3 years I wouldn't bother changing it.

 

[frankd]

Thanks for the help I will pick up some power steering hose. I see that Advance Auto sells some they call J189.