2019 Suburban with the V4/V8 5.3. Truck has 75000 on it no issues to date. Noticed this week, where the oil pressure held at 40 psi, it now is holding at 35. When car is warmed up, dropping to around 25 at idle. No visible oil leaks and oil reads full. Is this a precursor to soon to be problems? Always changed oil at 5,000 using Mobil 1.
2019 Suburban 5.3 oil pressure
- Thread starter TARFU
- Start date
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Found this in the 13,000+ page 2019 Suburban service manual regarding the 5.3:
Minimum - Hot -
@ 1,000 RPM - 152 kPa (22 psig)
@ 2,000 RPM - 207 kPa (30 psig)
@ 3,000 RPM - 228 kPa (33 psig
Appears to be within spec.
Minimum - Hot -
@ 1,000 RPM - 152 kPa (22 psig)
@ 2,000 RPM - 207 kPa (30 psig)
@ 3,000 RPM - 228 kPa (33 psig
Appears to be within spec.
