If its a V8, it's probably the oil pump pickup tube.
Oil pressure shouldn't register at all until the engine starts and builds up pressure.
The cruise is fed by the engine computer. If the engine starts and runs, it is not a blown fuse.
I just hit 300,000 on my 4.0.Oil pressure is getting pretty low at idle, but starts everyday summer or winter.
the engine will turn over a few times before starting, if it starts, and it will feel sluggish
The ignition starter has nothing to do with performance. It just starts the engine.
The oil pressure is zero when the engine is not running. The oil pressure sensor will read the low pressure for a second, when the engine first starts.
If you put fuel into the intake and it starts and keeps running, replace the engine coolant sensor. If you put fuel into the intake and it starts but stalls it probably is a bad fuel pump or pressure regulator. Do a fuel pressure test. Need to know what model, year and engine you have to help you any more.
Most cars would not have any oil pressure until after the engine starts turning because the oil pump is driven mechanically off of the engine.
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A bad catalytic converter can cause hard starts if it has become clogged. This produces excessive back pressure in the engine.
Depends on the engine but severe engine damage will start to occur almost immediately. It will run a few minutes until it starts to overheat then the engine will seize. It will not take long to destroy the engine.
Nothing is wrong. Drive it. It could be the oil pressure sensor starting to go bad- mine did the same thing This is normal. Oil is thicker when it is cold. As it warms up, it becomes more fluid and the oil pressure tends to drop. If it oil pressure drops when you come to a stop and increases as you accelerate, everything should be ok.