I have a 2013 tahoe that I bought in October of 2024. When I got it I wasn't having any issues. Took it for an oil change and was told there was a rear main seal leak. They told me I could manage that by topping off the oil every so often when needed until I could get it fixed. Finally got someone out to fix it but they told me it wasn't the rear main seal but it was the valve cover gaskets instead. got those changed out. Now had some others issues come out but got them taken care but now I have no oil pressure. We got the oil pressure sensor replaced and still having issues. There's no knocking noises or overheating or anything. It'll be fine driving 5 or so miles then the oil pressure just drops to zero. We know its not the rear main seal because my oil level is holding at the same level. there's no more leaking. Ive read lists of causes but I can't afford to keep guessing what the issue could be.
2013 Chevy Tahoe low oil pressure
- Thread starter Katie0402
- Start date
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Dustin Jackson
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@Katie0402 The oil pressure was only a concern after you tried to fix the oil leak? I wonder if the wiring to the oil pressure sensor was damaged. You could connect a mechanical oil pressure gauge to verify the oil pressure is ok and then try to hunt down why the sensor is reading that way
could be a few things if the dash gauge says zero but the engine has pressure (wire / sensor / screen plugged)
First step is to verify the dash gauge is correct, per the post above, mechanical gauge to verify the dash. Also, was the old sensor bad? They can be tested.
First step is to verify the dash gauge is correct, per the post above, mechanical gauge to verify the dash. Also, was the old sensor bad? They can be tested.
Joseph Garcia
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
As the folks stated above, get yourself a mechanical pressure gauge from Harbor Freight with the correct fittings and establish what your REAL oil pressure is. Once that is complete, we can assist you on the next troubleshooting and/or solution steps.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
As the folks stated above, get yourself a mechanical pressure gauge from Harbor Freight with the correct fittings and establish what your REAL oil pressure is. Once that is complete, we can assist you on the next troubleshooting and/or solution steps.
