Hello Foilks. Looking for advice on this one. My 2007 Maxima with 126k on it has an issue on warm starts where the oil pressure light turns off (as expected) upon start up but comes back on for roughly one second before turning off again. This only happens on a warm start - engine oil at operating temperature and after sitting for 30+ minutes. If the oil cools down (sitting for multiple hours or overnight), it will not do this. I'm assuming that with the oil at a thinner viscosity the oil pressure bleeds off while sitting. Anyone got any ideas?
Here's some more information:
The light doesn't ever come unless these conditions are met. Cold starts are good and it does not come on while driving. I just completed a 400 mile trip with the light not coming on. This seems to me like it should rule out the oil pressure sender?
The car also has timing chain tensioner issues. You can hear the brief rattle in the attached video. This will need to be repaired, but I'm not sure it's related to the oil pressure light problem. Maybe I'm wrong?
This issue has persisted across multiple oil changes/filter changes. Currently running Mobil 1 0W-40 and a Nissan filter. I tested it using an aftermarket filter and 5W-30 (recommended viscosity) and the problem still occurred.
Ruling out the obvious - oil level is good, no leaks, doesn't burn oil, and it hasn't missed an oil change since we've owned it and according to the carfax, the longest it could've gone without an oil change is 10k miles roughly 55k miles ago.
Here's some more information:
The light doesn't ever come unless these conditions are met. Cold starts are good and it does not come on while driving. I just completed a 400 mile trip with the light not coming on. This seems to me like it should rule out the oil pressure sender?
The car also has timing chain tensioner issues. You can hear the brief rattle in the attached video. This will need to be repaired, but I'm not sure it's related to the oil pressure light problem. Maybe I'm wrong?
This issue has persisted across multiple oil changes/filter changes. Currently running Mobil 1 0W-40 and a Nissan filter. I tested it using an aftermarket filter and 5W-30 (recommended viscosity) and the problem still occurred.
Ruling out the obvious - oil level is good, no leaks, doesn't burn oil, and it hasn't missed an oil change since we've owned it and according to the carfax, the longest it could've gone without an oil change is 10k miles roughly 55k miles ago.