jeffmazz

I installed an oil filter relocation kit on my 00' 2.7 Tacoma a few weeks ago. After the install I mounted a mechanical oil pressure gauge on the pillar. The pressure gauge was very slow to react to pressure changes. When the engine revved up the pressure would slowly rise. I knew this wasn't normal so I contacted Auto Meter and asked for suggestions. They asked me to cut the oil lines at both ends and reconnect them by very lightly tightening the ferrule nuts so as not to crush the lines by over-tightening. I knew i didn't over-tighten them but I did as they asked anyway. After completing this I found no change in the gauge response. I returned the gauge per Auto meter's instructions and replaced it with a new one. No change in response from the gauge. At this point I decided to remove the Trans-Dapt filter relocation kit to see what, if any, change this would make. Low and behold the gauge response was instantaneous. When RPM'S increased oil pressure increased right along with it.

With the filter relocation kit installed I would rapidly increase engine speed to 3000 RPM and the oil pressure would take about 5 seconds to reach 36 PSI. The engine specs call for a minimum of 36 PSI at 3000 RPM. With the filter kit uninstalled the oil pressure hits 45 PSI before I reach 3000 RPM.

Oil pressure at an idle is 4 PSI higher without the kit. The pressure at a 2000 RPM cruise is 12 PSI higher without the kit....15 PSI higher at 3000 RPM cruise. These figures are with the engine fully warmed up. The wierd thing is when the engine is started cold, the pressure with the kit would max out at 65 PSI while high idling. Without the kit it hits 90 PSI.

I had the filter mounted on the fender well under the hood about 10" above the stock location. I used 1/2" I.D. Good Year insta grip hose (good stuff). Each hose was 27" long with virtually no bends from end to end. I also tried different oil filters which was a waste of money.

Needless to say I will be climbing into the wheel well to change my oil filter from now on.

If you have a remote filter kit on your 2.7L you might want to check your oil pressure with a good mechanical gauge. I don't know for sure wether the slow response and reduced pressure will harm the engine but I"m not comfotable with it.

Best Regards,

Jeff

Ironmike4x4

BUMP? Anyone had this problem before? I'm just curious as I'm contemplating a similar project but this is coming from a person with just 1 post so I'm not so sure to take his word for it.

AH64ID

I will be installing a remote Bypass on my 07 and my 03.. my family has had bypasses installed on many rigs, some it drops the psi a little, but most not.. my guess is the 1/2" hose is TOO big, try 3/8"..

He also didnt say where the oil psi gauge got its psi from, some places will react differntly to psi drops than others...

91_4x4runner

I'm pretty sure that I need to do a relocation kit when I put my 1UZ in due to space, but it doesn't surprise me that it has problems reaching higher psi with more volume/space to pressurize.

Nic

Jeff, I have a 97 model 2.L Tacoma, and I have no problems changing the oil filter in the stock location. Yeah, I have to crawl underneath the truck, but it is very easy to access.

I was just curious since you mentioned going through the wheel well. I have never changed mine that way.

WatsonMD

Some of that loss of pressure is probably due to mounting it 10" above the stock location. It is best to keep it at the original level or lower to ensure consistent flow of oil and pressure.

Andrew

AH64ID

I dont think Jeff will be back, as he posted that in March, and thats his only post....

mt_goat

Yeah plus mounting it higher means the all the oil up higher in that tubing will drain back into the pan overnight and leave zero oil pressure on start-ups.

Maybe others will benefit from this thread besides Jeff.

Nic

I need to start reading the dates of posts.

Ironmike4x4

The only way I came across this thread was when I was searching for a write up on aftermarket oil pressure gauges. Then I saw this and wanted to hear feedback since I'm eventually going with this set up and with the larger oil filter.