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The emission of the black smoke from the exhaust is one of the symptoms pf a bad fuel pump in a 2002 Nissan Altima. Failure of the cranks to fire is another bad symptoms of a bad fuel pump.
what are the symptoms of a bad fuel pump on a 2002 GMC Sonoma 4.3 liters?
Fuel pump will not run.
Noisy fuel pump, stalling, or engine will not start and you have no fuel pressure.
The fuel filter is part of the fuel pump. It doesn't need to be changed unless the fuel pump goes bad.
When a fuel pump is bad the vehicle will not start. A fuel pump that is going bad may cause the vehicle to shut off while going down the road.
A bad fuel pump will hinder the fuel supply to the engine. The engine can run rough with an inconsistent supply of fuel, or it will completely shut off.
The main relay and the fuel pump relay are the same. Take the fuel pump relay and swap it with the main relay and see if that will help you....
There are a few ways you can tell if you have a bad fuel pump. These are is the engine sputters at high speeds, vehicle loses power while accelerating, or the engine will not start.
Weak fuel pump? Bad fuel pump? Plugged fuel filter? Plugged air filter? Bad ignition coil? plugged catalytic converter?
Hard starting, stalling, and eventually a no run condition. Be sure and replace the fuel filter.
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