Jensen Posted February 16, 2009 Report Share Posted February 16, 2009 I have a 98 chevy tahoe and my oil pressure is shooting up to 70-75, and the gauge only goes to 80... Before It used to sit right around 40 or so, is this supposed to do this and I just haven't noticed this before or is there something wrong???? HELP! Quote Link to comment Share on other sites More sharing options...
bassbaker15 Posted February 16, 2009 Report Share Posted February 16, 2009 I have a 98 chevy tahoe and my oil pressure is shooting up to 70-75, and the gauge only goes to 80... Before It used to sit right around 40 or so, is this supposed to do this and I just haven't noticed this before or is there something wrong???? HELP! Well have you had any work done to it?? i have a 97 1500 that I just put a new motor in, and i added a high flow pump.. It sits at 80 when cold and goes down to ~40-50 at idle and after that when the gas is applyed it goes back up to 80... Quote Team Deadly Hertz 1997 GMC 1500 Update.... System is gone Motor is fucked Truck is down and out for a while Myspace YOUTUBE My Build Link to comment Share on other sites More sharing options...
Jensen Posted February 16, 2009 Author Report Share Posted February 16, 2009 Well have you had any work done to it?? i have a 97 1500 that I just put a new motor in, and i added a high flow pump.. It sits at 80 when cold and goes down to ~40-50 at idle and after that when the gas is applyed it goes back up to 80... No work done! I changed the oil a few days ago, could it be something to do with that? Quote Link to comment Share on other sites More sharing options...
bassbaker15 Posted February 16, 2009 Report Share Posted February 16, 2009 No work done! I changed the oil a few days ago, could it be something to do with that? you change the fiter too?? could be a number of things.. just keep an eye on it.. If you start to hear funny noises, or it starts to drive funny, thats when you can tell you ahve a problem.. Quote Team Deadly Hertz 1997 GMC 1500 Update.... System is gone Motor is fucked Truck is down and out for a while Myspace YOUTUBE My Build Link to comment Share on other sites More sharing options...
Jensen Posted February 16, 2009 Author Report Share Posted February 16, 2009 you change the fiter too?? could be a number of things.. just keep an eye on it.. If you start to hear funny noises, or it starts to drive funny, thats when you can tell you ahve a problem.. Yeah I will I just dont want to blow a gasket or something... Quote Link to comment Share on other sites More sharing options...
bassbaker15 Posted February 16, 2009 Report Share Posted February 16, 2009 it should be fine... mine sit at 80 normally with my new pump and its fine... so idk... that just my opinion... you could get other opinions if ya want.. Quote Team Deadly Hertz 1997 GMC 1500 Update.... System is gone Motor is fucked Truck is down and out for a while Myspace YOUTUBE My Build Link to comment Share on other sites More sharing options...
Jensen Posted February 16, 2009 Author Report Share Posted February 16, 2009 it should be fine... mine sit at 80 normally with my new pump and its fine... so idk... that just my opinion... you could get other opinions if ya want.. I think it might be like you said cause its cold... Thanks for the Help Quote Link to comment Share on other sites More sharing options...
audiofanaticz Posted February 16, 2009 Report Share Posted February 16, 2009 Id also say its because its cold. You said you just got an oil change. New oil at a cold temp is going to be thicker then older used oil at the same temp because its all broke down. of coarse when the oil heats up it becomes even thinner, reducing your oil pressure. oil is rated in weight or viscosity. 5w 30 oil is 5 weight hot, 30 weight cold. 10w 30 oil is 10 weight hot, 30 weight cold. straight 50w is 50 weight hot or cold. etc It is wiser to run a 5w30 oil in winter, and something like 10w30 in summer. To much oil pressure can be a problem, but this is why your to let your vehicle warm up before driving. Off the top of my head my 99 hoe is about at 60ish when i start it cold, and drops down to around 20-25 at a idle, around 40 at driving about 25-35mph, and around 60-70 on the highway doing 65-80mph hope that helps a tad more. Quote Link to comment Share on other sites More sharing options...
ChevyBoy Posted February 16, 2009 Report Share Posted February 16, 2009 sensor could be stuck Quote Link to comment Share on other sites More sharing options...
00_XJ Posted February 16, 2009 Report Share Posted February 16, 2009 I have a 89 Chevy 1500 that does the same thing. The oil pressure is high when started then drops and then rises again when I accelerate. It's been doing this for as long as I can remember and it hasn't been a problem although I rarely drive it. Seems to be a GM defect from this post though. Quote 2000 Jeep Cherokee -DC Audio -Memphis -Audioque -SecondSkin -Pioneer -KnuKonceptz Link to comment Share on other sites More sharing options...
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