Thread: More Fuel Pump Chat

depends on how it was failing, yes.

Originally Posted by Kevin B

Just wondering is any has experienced any improvement in performance at all after changing out a failing fuel pump.

Absolutely. Mine would run constantly, instead of stalling at traffic lights, get out, bang the bottom of the tank, get back in, ignore horns honking, restart it....

Mine had more power on gas, and when I fitted the Bosch pump it's now got more on petrol

I'll let you know when I swap out my very noisy dying one laster this week

Originally Posted by B92 8NW

I'll let you know when I swap out my very noisy dying one laster this week

Thanks ill do the same swapping out mine early next week, it was not really noisy it just failed

Originally Posted by Gary S11

Mine had more power on gas, and when I fitted the Bosch pump it's now got more on petrol

Internal bosch like the original or external ?

A fuel pump is a device for keeping up the fuel injection pressure in the fuel rail. Once a fuel pump flows enough fuel to run up to the fuel pressure regulator setting it can't increase performance. If a worn pump or blocked filter prevents you reaching full pressure under full load your performance will suffer. A bigger than necessary pump won't make you go faster unless you alter the rest of the system to use its abilities.

Originally Posted by bee utey

A fuel pump is a device for keeping up the fuel injection pressure in the fuel rail. Once a fuel pump flows enough fuel to run up to the fuel pressure regulator setting it can't increase performance. If a worn pump or blocked filter prevents you reaching full pressure under full load your performance will suffer. A bigger than necessary pump won't make you go faster unless you alter the rest of the system to use its abilities.

Thank Bee Utey, i kind of knew that, my question was more aimed at a faulty pump not delivering enough fuel, which you answered, thats what I suspected with mine, it had been failing for a while till it finally gave up, I guess ill see when I change it next week if there is an improvement at all.