The first question to ask is are you getting suction from the pool, When the sand filter is cleaned the pressure goes down. So the only thing you should worry about is. 1 The filter should be set on filter. you should be getting strong suction from the suction side outlet of the pool. and you should make sure you are not sucking air into the skimmer.
Have the fuel pressure checked. If the pump is noisy it is failing. do not forget to replace the fuel filter. A clogged fuel filter will appear as low fuel pressure, and overwork the pump.
Replace the fuel filter first thing. If this continues have the fuel pressure checked.
have u checked the fuel filter or pressure if fuel pressure is around 30 or above is not the fuel filter it could be in the injector
When the pressure shows 0 it means that the water is circulating as well as it can the pressure goes up as the filter gets dirtier and water is held back by the filter. If your pressure has suddenly dropped Far lower then usual it indicates that there is a problem in the filter. water is getting through somehow without being filtered. if you have a cartridge filter there may be same damage to it reducing back pressure.
fuel filter? fuel lines? what all have you checked.
You need to have the fuel pressure tested. The pump may seem to be working but not the required pressure needed.
You need to check the fuel pressure while driving,
Need to run a fuel pressure test on the fuel pump. It should have 55 to 62 PSI with key on engine off. No less and no more. The fuel filter should be checked and probley replaced too. check these things first, If thay are okay then ask your question again saying that you have checked fuel pressure and filter and thay are okay.
Did you change the fuel filter? Have you checked the fuel pressure regulator?
First thing to do is change the fuel filter and if it still acts up get the fuel pump pressure checked.
This could be many things. Did you have your fuel pressure and volume checked?
Check your fuel filter. When was the last time you also checked your air filter.