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Plugged filter, or a failed engine.
The oil pressure is dropping at this time. A clogged oil filter, clogged oil pump screen or failing oil pump can be the cause.
Check the oil pressure sending unit first. The oil filter could be bad or clogged. The oil pump filter screen might be clogged, or the fuel pump could be bad.
The oil could be dirty or the filter could be clogged. The oil pump screen could be clogged or the pump could be going bad.
No. Oil circulation has nothing to do with acceleration. A fuel filter change on the other hand may help. Things that cause poor acceleration include clogged fuel filter, clogged air filter, need of a tune up, some electrical problems or a clogged catilytic convertor.
Oil level low, low oil pressure, or a clogged filter, if the bypass is not working. From there I would say maybe a clogged oil journal.
It allows the oil to bypass the filter completely if the filter becomes clogged.
The filter, or filter bypass valve is clogged, replace the filter and then the valve; if the filter replacement does not fix it. (NOTE: Some cars have the bypass filters in the oil filter, others do not)
That would depend on how long the oil filter has been in use. At worst, the filter could become clogged and restrict or prevent the flow of oil through the engine.
As the filter does it's work it becomes more and more clogged with filtered out particles. Eventually it will cease to work as a filter and the oil will just bypass the filter completely. Eventually you will no longer be filtering the oil. Replace the filter at every oil change.
Too full of oil or gasoline is getting into the oil. This is caused by a bad needle valve & seat inside the carburetor. Can also be a clogged vent filter. Replace the vent filter.
In short, NO. Check your oil level and viscosity, or just change your filter and oil to be sure. Low pressure can come from a clogged filter.