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My oil and temp gauge read the same?
I’m gonna try to detail this as much as possible, it is on a 92 F250 460 XLT (didn’t give me the option to select 9th gen). So the deal is that my temp gauge and oil gauge in the instrument cluster read the same usually fairly high, above or at the L in “Normal”. This is when the engine warms up, so the coolant gauge is somewhat correct in that when it is cold it tells you so. But the issue remains that it seems I have high oil pressure and a high operating temperature. It does fluctuate up if accessories are used, such as heat or ac, headlights, etc. The voltage gauge also reads low, not extravagantly, but usually right around the N on “normal”. So to the specifics, i am running 10w-30 oil as is recommended, the water pump was recently replaced and filled properly, the thermostat was recently replaced, i have checked grounds to the negative battery terminal (hoping thats all it was) and cleaned them, the fan clutch was also recently replaced, and nothing leaks worth mentioning. I’m kind of at a loss, i almost wonder if its the alternator due to this truck being fairly new to me and the previous owner installing one that i don’t believe to be ‘for this truck’, it doesn’t look to belong and connections were MADE not reconnected for its function. I wonder if its not supplying efficient power yet the battery is 3ish years old so if it wasn’t i’d think that i’d have more problems starting or running accessories. I did test the running voltage which was fairly low in my opinion 13.4V. I can’t imagine the problem being all three gauges at once despite its age. I keep forgetting tid bits so i apologise for the random adds of information like this one, i doubt its a huge problem but it does have an aftermarket oil cooler, i’d hope that doesnt cause my gauge readings due to the sensors being in different spots, but i just figure its worth the mention for thoroughness. Thank you for reading and anything helps!
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