Oct 21, 2008 · 11 posts · Joined 2008. #1 · Oct 21, 2008. I am noticing the the oil pressure gauge fluctuates from about 30 PSI to 60 PSI depending on RPM. Also when cold the pressure tends to be higher at low RPM and drops down to around 30 PSI as the engine warms up. Engine temperature and oil level appear normal. This is my first diesel engine and GM truck.Hello all I have a 2004 silverado 5.3 z71. Its has been acting up for a while but hasn't thrown any codes until today. The truck wants to lunge and try to cut off and when stopped it lunges and you cant hardly hold it still. The temperature gauge is the only one that changes and it starts fluctuating between 160 and 260 but would normally ...I meant the injector leak into the oil. lane 2004 GMC Sierra 3500. 6.6 liter Duramax (Vin 1) Like. Tow Master. 24781 posts · Joined 2006. #5 · Oct 24, 2011. Yes fuel in the oil could lock the engine up. If it happens again or if you notive oil on the dip stick rising youll need to get it fixed ASAP!39 posts · Joined 2021. #1 · Oct 4, 2021. today i was driving and noticed the engine light was on then i noticed the oil pressure is pinned at 80psi and i was at like 1300rpm its usually staying around 35-40psi at that rpm then i cut it off and back on and it continued to be at 80psi i have never had anything like this happen let me know if ...#1 · May 19, 2010. Hey guys, So about a week or 2 after I changed my oil, I have noticed something strange with my oil pressure. Whenever I start it up, the gauge jumps right …#1 · Jul 30, 2018. Among the other issues I listed wrong with my 2007 1500 6.0 VortecMax in another post is the oil pressure gauge isn't working. ... The first thing to do is hook-up a manual pressure gauge and see if there really is no oil pressure or if the dash gauge is not working or if the sending unit has failed (likely). The AFM issue ...It's now idling at 30 mostly, but sometimes drops as low as 20 when warming up. Once I get it to operating temperature it's will increase with an increase in RPM, but once at idle it drops down to 30 again. Operating temperature readings: 1500-2000RPM=38-42PSI. 2000-2500=42-48. 2500-3000=48-55.That is exactly what happened yesterday driving my 08 GMC Sierra 5.3 into town which is about 9 miles. About have way there the gauge bottoms out and the mes center said no oil presure stop the engine. The engine wasn't making any noise so I went on into town stopped at walmart checked the oil it was about 1/2 quart low.The reduction in flow causes pressure to build in the rest of the hose, and the water that does escape does so in a broken manner. As the oil flows through the system, it can carry debris, which ...Just really trying to get input from others that have worked with/drive that particular engine as to typical oil pressure, especially while at idle. Coasting yields 30-40 PSI, moderate/light acceleration is around 45-55 PSI. Full throttle goes 60-70. It's a typical stock GM oil pressure gauge that reads up to 80 PSI. C.When my sensor was shorting out along the wire, the gage would go down to zero, not the opposite. Not sure about a maxed out sensor, I hope that it is covered and something simple. South Florida GMC. 2011 GMC LML CCLB SLT DRW 4x4. 285/75/R17 B & W turnover ball. Antitheft hose clamp installed on tailgate hinge.283 posts · Joined 2014. #7 · Dec 4, 2014. I had to replace the oil pressure sensor in both my '05 GMC and my wife's '06 Tahoe. In my GMC, it pegged and never came back down. In the Tahoe, it pegged and then a day later went to zero and moved slightly with acceleration. Replaced the sensors and back to normal.18 posts · Joined 2014. #1 · Dec 30, 2017. I have a 2003 Sierra Denali 1500 with 207,000 miles. I decided to change the oil yesterday. Started by draining the oil and I left the drain plug out, pulled the filter, let it drain. Went on to other things. Came back in about 10 hours, installed the drain plug, oil filter and oil.Sep 16, 2013 · Flucuating oil pressure. 2013 GMC Sierra 2500HD 6.6l Duramax - just changed the oil and filter (Fram PH100) at 3000 km to remove any breakin wear etc from engine. Now I am noticing the oil pressure fluctuate from 200 Kpa to 600 Kpa. Lower oil pressure with lower RPM.If you have a car, chances are you also have a tire-pressure gauge. Learn how this pen-sized device measures air pressure and why the little stick inside doesn't just fly right out...Let me double check the specifications. Ok, the good news is that your oil pressure is within specification. So the engine seems fine. The problem is in the oil pump itself, there is a relief valve built into the oil pump that is supposed to respond to engine conditions/demand and it sounds like it's stuck which is a common issue on those.May 21, 2018 · Oil light has never come on, but I also don't want to assume the gauge is 100% correct (pressure sensor and filter were replaced about 3 months ago). 2013 Silverado 1500 LT Crew Cab 4X4. Silver Ice Exterior. V8 5.3L Vortec w/ 6-Speed. OPTIONS/ADD-ONS: 6" chrome tube step bars, Protection package, Rear bumper step, Line-X Bedliner.The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), is responsible for monitoring the oil pressure. The ECM will send a signal to the gauge on the dashboard, which will then light up and indicate to the driver that there is an issue. If the Chevy Silverado's oil pressure drops too low, it can cause engine damage.Oil pressure gauge pegging out. Looking for a little insight here. Not much of a truck guy. I drive a Chevy Silverado 1500, today while hauling my firewood trailer (empty). My oil pressure gauge was at 60. Usually rides at 40. After loading the trailer it pegged to 80 with the tow/haul on. I switched the tow/haul off and kept it about 1000 rpm ...Causes of 5.3 Oil Pressure Fluctuating. The 5.3 oil pressure fluctuation is apparent as the light illuminates in the dashboard. As the light illuminates, it is a sign that requires you to turn the engine off or stop driving at once. However, if the oil pressure is zero or low, it will damage the engine. The oil pressure gauge fluctuates ...Nov 30, 2023 · I feel like anytime I drove the truck, no matter the RPMs, my oil pressure was always stable around 275kpa (roughly 40 psi). Now I watch it fluctuate. After warming up at idle my pressure drops to around 200 kpa (29 PSI) and will surge as high as 400+ kpa (roughly 60 PSI).Very low reading. Very high reading. Other reasons why your Chevy Silverado oil pressure gauge is not working. Oil requires change. Blocked oil filter. Blocked oil …It's not too late to refill the Strategic Petroleum Reserve In 2022, the US government helped fight inflation with a smart oil trade: Selling from the Strategic Petroleum Reserve (...A quick and easy video: How to reset the oil life monitor/light/message on a new (or brand new) Chevy Silverado.This applies to both gasoline and diesel vers...1 answer. 2003 yukon denali oil pressure switch pegged over the 80 psi indicator. Oil qty is good. Sounds like a bad oil pressure sending unit. Try unplugging it and see if the gauge drops to zero. If it does than replacing the oil pressure sending unit will most likely fix your problem. It is not easy to see or get at but you can find it on ...Step 1 - Check the solder points. The solder points may be cracked. The instrumental panel is a larger circuit board attached to each meter and gauge. First-generation Silverados are notorious for dealing with choppy solder points. And to check the solder points, the instrument panel will first have to be removed.I have replaced the sensor, oil pump, pick up tube, oil pan gasket and valve cover gaskets to get rid of any leaks, replaced the gauge cluster and now it shows pressure . I also put a mechanical gauge on the block. It seems to get good pressure when cold because the oil is thick when its cold once engine warms up the oil thins out a bit and the ...Check out my Merchandise Store Below the video for Men's and Women's Apparel, MUGS and Stickers! https://rainmanraysrepairs.myspreadshop.com/Support the cha...4 posts · Joined 2023. #1 · Dec 7, 2023. My oil pressure sending unit fail, reads 0 or 80 psi, then after a while starts to leak oil from the pigtail. This has happened about 5 times over the last 3 years. The good news is I’m getting pretty good at changing it, bad news is it’s not fixing the problem.11,447. Location. Indianapolis, IN. Nov 11, 2019. #15. At idle, the Dmax should have around 90-100 psi of oil pressure on the dash gauge with cold oil. At idle, it should drop to around 30-35psi with hot oil. The oil pressure, when oil fully warmed, will go up to around 45-60 psi (depending upon rpm), as you drive it.MY 1988 K1500 350TBI 65K miles recently started showing very low oil pressure. Typically 30-40 suddenly went to 20 with RPM, 5-0 at idle. The check gauges light would even illuminate. After changing the oil and filter and doing a lot of digging, it turns out the 1988-1991 350's had two oil sending units. If you dig through the factory repair ...Starts up at 40 plus and even up to 60 while cold. Once warmed up pressure drops. Runs 40 on highway and 20 at idle. I removed lower pressure relief valve from oil pan. Put a good oil filter in and using 5w30 oil. Ive done compression checks.You will need to connect a voltmeter to the battery when the car is running and idle. In an ideal situation, the voltage will read somewhere close to 14.4 volts but it will stay at this number and won't continually fluctuate. If the number is lower than 14.4 but it is steady and not fluctuating, then your alternator is working absolutely fine ...Silverado oil pressure gauge pegged – Silverado oil pressure gauge fluctuations – Silverado oil pressure gauge high. If your 2003, 2004, 2005 or 2006 Silverado oil pressure gauge pegged out, has unusual fluctuations in it’s readings or reads high it can be caused by one of two problems.Ron Z., - Chevy Tech -. Category: Chevy. Satisfied Customers: 26,828. Experience: 18+yrs experience. State Inspector and Chevy Diagnostics. Verified. This sounds like you have a faulty Oil Pressure Sensor. It's located at the rear, driver's side of the engine. You will need a special socket to remove it.1 answer. 2003 yukon denali oil pressure switch pegged over the 80 psi indicator. Oil qty is good. Sounds like a bad oil pressure sending unit. Try unplugging it and see if the gauge drops to zero. If it does than replacing the oil pressure sending unit will most likely fix your problem. It is not easy to see or get at but you can find it on ...LQ4 Oil pressure gauge fluctuations, sending unit repla. ... 2012 Silverado 3500 dually, 6.0l, crew cab, long box replaced w flatbed. Save Share. Like. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.Here is a more detailed list of the reasons why your car temperature gauge goes up and down: 1. Bad Thermostat. The thermostat is used to regulate the temperature of the coolant. If it starts to fail, it can act erratically, causing the gauge to jump up and down. Once it goes bad, it will no longer act this way.Also out: DVD rentals, MP3 players, and sewing machines. Every three years, New Zealand reviews the items it includes in a basket of goods that it uses to measure inflation, which ...26 posts · Joined 2015. #3 · Feb 27, 2021. Here is how the oil flows in the 5.3 AFM engine. 706 - Oil Pressure Sensor. 451 - Vavle Lifter Oil Manifold. 452 - Valve Lifter Oil Filter. 455 - AFM Oil Pressure Relief Valve. public image upload. 2007 GMC Sierra 1500 SLE - 4x4, 5.3l AFM - Flex Fuel.10 posts · Joined 2013. #4 · Feb 7, 2015. found this thread after changing oil sending switch and filter. '07 5.3L 190K miles with fluctuating oil pressure. tries to read low with warnings unless keep in low gear or manual reving above 1K rpms. Then when warm will read about 35-40 most of the time. condition was present before changing switch ...Stepper motor could have gone bad sounds like, very common issue. You can search eBay for sellers that replace all of the stepper motors in your cluster for you. …83882 posts · Joined 2006. #7 · Oct 4, 2020. That's either a faulty sending unit or bad wiring/connectors. Hopefully not the PCM input/oiutpiut. An oil pressure gauge sender is a variable resistor that changes an electrical signal with changes in oil pressure - so the gauge is actually a voltmeter. Bad or no inputs and they go freako.62 posts · Joined 2011. #1 · Jan 10, 2021. Just noticed while on the highway, at about 75mph and 2200 rpm my oil pressure is reading about 77 psi. Sitting at idle I'm at about 58. I THINK I'm used to seeing this about 10-15 psu lower. I did just get an oil change and I suppose it's possible they put something like 20w50 in but I really doubt it.The last couple days it has been fluctuating. I stand to win the four slice chrome toaster if I was closest to the correct guess. This can shorten the life of the engine. 2009 silverado z71 4x4 5. Silverado oil pressure gauge fluctuations in stock.Stepper motor could have gone bad sounds like, very common issue. You can search eBay for sellers that replace all of the stepper motors in your cluster for you. …5 posts · Joined 2017. #1 · Jan 2, 2018. I just purchased a 2018 GMC 2500HD Denali and ever since I bought it I have noticed that the oil pressure gauge jumps around a lot. When it's cold the oil pressure will go all the way up to 100 psi then after it warms up, it will go back to around 60 but upon acceleration goes back up to close to 80 ...The oil pressure sensor determines the pressure and sends the signals through wires to the gauge. The gauge then tells the driver the exact pressure of the oil. Now, if the wire is faulty, it’ll impede the signals from the sensor; thus, the oil pressure gauge goes from 40 to 80 within the blink of an eye.Apr 24, 2018 · 5 posts · Joined 2018. #1 · Apr 24, 2018. I have a 2011 Texas Edition Silverado V8 5.3 Liter. 3 weeks ago the oil pressure pegged out. I had it replaced at a Chevy dealer. This particular chevy dealer has done all the work on my truck. The oil pressure usually read between 22 - 32 psi normally. This seems to be normal.GM 07-13 5.3L AFM LC9 witnessed oil pressure drop from 40 to 20 and hovered at around zero. Check engine light came on the low oil pressure light and DIC alarming to shut engine down. Shut engine down and restarted, oil pressure went back up to 40 and continued to drive until it happened again.Step 2 - Install the new oil pressure sending unit. Thread in the new oil pressure sending unit by hand. Tighten it further using the 1/16" deep well socket, ratchet, and extension. Then, attach the harness connector to the new switch and re-install the engine cover. Once the engine is started, you should see a normal oil pressure reading on ...Jun 6, 2019 · Checked the oil levels one more time (fine). Removed the oil filter and put on adapter & gauge. Ran the truck. The truck's Oil Pressure gauge resumed the same behavior, except now it is more likely to drop to zero reading and remain whereas before it fluctuated 5-40. The manual gauge showed normal readings ~40psi with increases with RPM.10 posts · Joined 2013. #4 · Feb 7, 2015. found this thread after changing oil sending switch and filter. '07 5.3L 190K miles with fluctuating oil pressure. tries to read low with warnings unless keep in low gear or manual reving above 1K rpms. Then when warm will read about 35-40 most of the time. condition was present before changing switch ...Hopefully if you take it in to the dealership a Ford tech will be able to solve the issue. They said it was a live oil pressure gauge. Zero oil pressure on gauge, questions. 2021+ F150 - Oil pressure /gage - I noticed that the oil pressure gauge fluctuates a lot . Back -and- forth as you go down the highway.I ended up doing something similar to this for the transmission cooler lines. However, i just finished changing my oil and noticed a leak coming from above the oil filter housing, right where the oil cooler lines go into the system. The dealer wants 107.84 for the part, and 230 for labor.GN, the oil pressure port for the dash gauge is probably where you will need to tee off to install a mech gauge. Its located at the very back of the intake manifold a little toward the drivers side. Somewhat hard to get to. This is an older thread, you may not receive a response, and could be reviving an old thread.Ask Someone Who Owns One. * All fields required. The 2002 Chevrolet Silverado has 1 problems reported for oil pressure gauge fluctuating. Average failure mileage is 215,000 miles.I have owned Chevy/GMC, Dodge, and Ford trucks over the years, but have never seen a pressure gauge fluctuate that much. Others stayed pretty much the same from startup, to idle, an own through acceleration. Any thoughts or advice to ease my concerns would be greatly appreciated. :confused2: Feb 15, 2009.Find out more about your fuel gauge fluctuates. Here are 11 reasons why; continue reading! 1. Damaged Sending Unit. The sending unit is from which the process starts in its entirety. That said, the sending unit continuously checks the gasoline level in the tank when your car is moving. However, due to its frequent usage, it is vulnerable to ...An oil pressure gauge can fluctuate for many reasons, including an actual automotive problem as well as reasons like fluctuation in oil temperatures. In most cases, the gauge will ...Be sure the oil level is topped up. The only way to be sure it so measure the actual oil pressure at the engine with a proper gauge.. 2005 chevy silverado 5.3 Liter 1500 4x4 , im havn a problem with the oil pressure gauge fluctuating from 80 to zero sporaticly. Starts out showing pegged at 80 psi, then will occasionally drop to 0, then...Another tidbit... "07 Avalanche. Same as above with truck on at 40 lbs and drops near zero when heats up after 5 minutes. Low oil pressure warning to stop engine. Changed oil and filter and pressure raised above 40 idle and 60 acclelerating. Oil life showed 35% remaining and level was topped off but appears oil had broken down to cause issue.Olive (Olea europaea) is a tree with edible fruit, leaves, and seeds. Olive oil is commonly used for heart disease, high cholesterol, and high blood pressure. There is interest in ...Suburban LT3 5.3L V8. Automatic transmission. 30,000 miles. The vehicle will have a fluctuation on the oil pressure gauge from approx 35 psi to low 20's at idle. When oil pressure fluctuates, there is a noticeable amount of vibration from the motor. I not talking about oil pressure drop after coming to a stop, but instead when car is standing ...New Covid infections appear to be surging in China due to the rise of the XBB sub-lineage of the Omicron variant....PFE How many days... are left in May? "Not enough" might be the ...Answered. 2004 Silverado 4.8l Oil pressure fluctuates from 40 down to near 0 when driving according to the gauge next to speedometer. When pressure shows about 10 or less, the audible warning constantly sounds. Shut engine off for 5-10 min and pressure is back up (temporarily). Problems start about 1k - 1.5k after an oil change.Fluctuating Oil pressure troubleshooting. Hey, I have a 2009 GMC sierra 5.3 L V-8. About two months ago when I was on the highway I looked down and noticed my engine light was on and my oil pressure was around 20 PSI. I turn my tuner on and saw that the engine Was saying low oil pressure so I pulled over.L5P Oil Pressure issue. 2019 3500HD 125k miles. I tow a lot with a lot of weight. Last trip low oil pressure warning came up. Pressure running about 28 psi. Pulled over and checked levels, all fine. Good thing I was close to home and pressure stayed 28 or more the whole way. Now at 600 rpm running 15 psi and 90 psi at 3k rpm.