Low oil pressure / inconsitant oil pressure
I'm a little concerned. This is a 6CTA, Ref # 53-34874-004 engine # 45358278, model C8.3-325, read that as 325 HP. When first cranked (weather cold -12, or hot 110) the oil pressure gauge on the...
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A mechanical gauge will be the only way to know... but you are still betting on the accuracy of the gauge. Generally they are pretty good.
On my '93 GMC, the oil pressure gauge would fall to about 5 lbs at warm/hot idle, and would go to mid-gauge (40-45) at cruising speed. I always felt the gauge or sending unit was at fault, so I eventually replaced the sending unit with a dealer part. It read 25 lbs at cruising speed and just over 0 at warm idle. Disgusted with that, I put the original back in, then a couple years later I bought a Napa sender. The gauge reads 55-60 at cruise, and 15 at idle.
The point is that 3 different senders gave me 3 different values.
I trust the GM gauges to give me a general guideline, but I've both heard and now experienced the excuse for gauges Ford provides. On our MH, the temp gauge will come up to about 1/3 of the range as it warms up. When encountering hills, the gauge never moves but I know the water temp is gaining when the clutch fan kicks in. I've installed a ScanGaugeII, so now I can watch the actual temp as reported by the computer.
Ford's gauges are not even gauges, they are idiot needles in lieu of idiot lights. Once the needle moves into the upper end of the range, the damage is already done. The only useful Ford gauges are fuel & speed.
Does your coach have an J1939 and J1708 protocols (the diesel equivalent of ODBII) or is it too old for that? ODBII started in about 1996.
Looking at the ScanGauge website, the ScanGaugeD monitors oil pressure.
On my '93 GMC, the oil pressure gauge would fall to about 5 lbs at warm/hot idle, and would go to mid-gauge (40-45) at cruising speed. I always felt the gauge or sending unit was at fault, so I eventually replaced the sending unit with a dealer part. It read 25 lbs at cruising speed and just over 0 at warm idle. Disgusted with that, I put the original back in, then a couple years later I bought a Napa sender. The gauge reads 55-60 at cruise, and 15 at idle.
The point is that 3 different senders gave me 3 different values.
I trust the GM gauges to give me a general guideline, but I've both heard and now experienced the excuse for gauges Ford provides. On our MH, the temp gauge will come up to about 1/3 of the range as it warms up. When encountering hills, the gauge never moves but I know the water temp is gaining when the clutch fan kicks in. I've installed a ScanGaugeII, so now I can watch the actual temp as reported by the computer.
Ford's gauges are not even gauges, they are idiot needles in lieu of idiot lights. Once the needle moves into the upper end of the range, the damage is already done. The only useful Ford gauges are fuel & speed.
Does your coach have an J1939 and J1708 protocols (the diesel equivalent of ODBII) or is it too old for that? ODBII started in about 1996.
Looking at the ScanGauge website, the ScanGaugeD monitors oil pressure.
