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Dang I'm learning something new about these cars all the time. I'd read long ago about this oil pressure unit relocation, but gave it no thought because my pressure gauge worked fine. Lately I've noticed that my gauge hovers around 40 psi at idle, but climbs to 70 or a bit more under acceleration or revving. Both the needle gauge and DIC read 0 psi when the engine is stopped. I've never noticed my gauge doing this until lately. I recently changed plugs and wires, but that should have nothing to do with oil pressure readings (especially since the sending unit is under the intake manifold). Is this erratic gauge a sign that it's failing? If so, when I take the car in for a few other fixes next week, I'll have them look at this too. Thanks!
Your ZO6 has the exact same oil pressur readings as mine when the engine is cold. That is quite normal. Its been that way since it been new. Once the engine warms up to operating temp, they shouldnt go quite as high but it still goes pretty high.
No one has mentioned the length of the copper tubing yet. I'm collecting these parts to do this as I'm pegging 80 lbs. I ordered the Borg Warner Vette part from Pep Boys for $24, Chevy dealers in Atlanta want $65 for it.
It all depends on where you decide to route it to! I bought a single length of 3 feet, then custom bent it to my needs, and finally cutting off the excess that I didn't need. 1/4" OD copper can be acquired from Home Depot or Lowes for real cheap.
Just a quick thought... I did the relocation too, but used copper tubing. I am an Engineer and was looking at most of the available plastic tubing due to the fact its obviously easy to route as needed. Most of what I saw had fairly low maximum temperature capabilities then comparing those numbers to the highest possible oil temps for our cars...I didn't like what I saw. I decided that I didn't need that line melting on me driving down the freeway, so I went with copper and I've had no problems.
Also an engineer, but at the race track, plastic oil line tubing is not allowed (for safety reasons). Copper is allowed.
BTW, thank you for the information on the fittings. My sender has been replaced once in its stock location, but that will be the last time. I'm relocating it next time.
I relocated mine to the fuel rail and its interesting that the first replacement in the stock location, it failed two weeks later but once it was relocated, no more failures. I still tend to think its simple heat back there that causes the internal seals to fail therefore allowing oil into the electronics. If I had a way to simulate it, it could be proven one way or another.
I was thinking that maybe some cooling fins could be cut into the nut of the sensor or possibly find an aluminum adaptor with cooling fins already on it. We may be talking about just a few degrees of cooling that may be needed to keep the sensor from failing.
I've read on this forum that when the sending unit fails, there will be an oil pressure reading even with the engine turned off (ignition at RUN, but without the engine running). I'm not to that point yet, but I'm curious if my erratic readings points to a failing sending unit.
my wentout today.still reads when aux is on and 130 when engine on.. was told thats sign of bad sensor..
Is it possible to get the pictures from this thread? I realize it is old, but I'm a "new" vette owner and just had this happen. Want to do this relocation, but the pics would be a great help. Appreciate any help in advance with the pics...BTW, this forum is great!! Been wanting a vette for years, finally got one, and...I have some projects BUT, so far I've been able to find all the answers/fixes here!
Blanket thanks to everyone!! Appreciate any help with the pics.
Is it possible to get the pictures from this thread? I realize it is old, but I'm a "new" vette owner and just had this happen. Want to do this relocation, but the pics would be a great help. Appreciate any help in advance with the pics...BTW, this forum is great!! Been wanting a vette for years, finally got one, and...I have some projects BUT, so far I've been able to find all the answers/fixes here!
Blanket thanks to everyone!! Appreciate any help with the pics.
Go to YouTube and search C5 Corvette oil pressure sensor relocate.