Electrical issue or oil pressure really fluctuating?
03-01-2006, 10:56 AM
#1
Electrical issue or oil pressure really fluctuating? I recently installed new heads / cam. Yesterday while driving to work, towards the end of the trip, my oil pressure was about 15 psi lower than usual at idle, but it cam back up to pressure above idle. My first thought was a sticking pressure relief valve (fairly new ls6 pump, ported and shimmed). Its possible that I still have some chunks of my old broken lifter rollers floating around in the oil, or even some aluminum filings from flycutting. A quick rev dislodged whatever it was and my idle pressure cam back up. I was running fresh dino oil only a day old. I changed that oil when i got home and put new dino oil in again, which i plan on changing for my usual synthetic this weekend. Since then Ive seen the gauge fluctuate just a hair, maybe 5 psi difference at idle throughout the course of the morning commute. Do you think this is really happening to the oil? Maybe i damaged the sending unit putting the intake back on? Or perhaps I have a loose ground or something. The night I first fired it up (sunday night), for a split second all my gauges went down to zero and then came back up immediately. The motor didnt hiccup at all. I figured it may have been due to the extreme cold it was sitting in for so long. Hasn't happened since. Any ideas what I should try first? I dont have time to poke around until saturday, so i figured id do some homework while i wait for the weekend.
03-01-2006, 11:07 AM
#2
With all the gauges going to zero for a second sounds like a elect problem there, like you say loose connection or ground.
As for erratic oil pressure indication-low I would look close at the OP sender and it,s connections. If you think you have contamination or had, might try and pull the OP sender out and do a good flush and clean. Might have something blocking the inlet.
As for erratic oil pressure indication-low I would look close at the OP sender and it,s connections. If you think you have contamination or had, might try and pull the OP sender out and do a good flush and clean. Might have something blocking the inlet.
03-01-2006, 11:13 AM
#3
Originally Posted by 618HAWK
With all the gauges going to zero for a second sounds like a elect problem there, like you say loose connection or ground.
As for erratic oil pressure indication-low I would look close at the OP sender and it,s connections. If you think you have contamination or had, might try and pull the OP sender out and do a good flush and clean. Might have something blocking the inlet.
As for erratic oil pressure indication-low I would look close at the OP sender and it,s connections. If you think you have contamination or had, might try and pull the OP sender out and do a good flush and clean. Might have something blocking the inlet.
03-01-2006, 11:26 AM
#4
Different motor, but I did an intake on my Pontiac 3.1 V6 and am having similar issues. I think its electrical though.
The only way a "chuck" could stem the flow of oil is if it was stuck on the pickup, and reving it wouldn't dislodge it but would likely adhere it harder. I think your issue is electrical.
The only way a "chuck" could stem the flow of oil is if it was stuck on the pickup, and reving it wouldn't dislodge it but would likely adhere it harder. I think your issue is electrical.
03-01-2006, 11:32 AM
#5
Originally Posted by vettenuts
Different motor, but I did an intake on my Pontiac 3.1 V6 and am having similar issues. I think its electrical though.
The only way a "chuck" could stem the flow of oil is if it was stuck on the pickup, and reving it wouldn't dislodge it but would likely adhere it harder. I think your issue is electrical.
The only way a "chuck" could stem the flow of oil is if it was stuck on the pickup, and reving it wouldn't dislodge it but would likely adhere it harder. I think your issue is electrical.