Black93_Formula

well i was mainly wondering how can you for sure tell your fuel pump or fuel relays are bad because i figured out wut i thought was tranny problems is because my fuel pump is bad. the engine back fired and lost power and showed the same symptoms of when a fuel pump goes bad. (ive been driving a vehicle when this has happened) any input would b helpful. thanks

96lt1m6

iTrader: (31)

get a gauge and test fuel pressure before you go spending money.
be ready to do a fuel pump

ss.slp.ls1

iTrader: (36)

+1. Reading the fuel pressure is the only way to tell if the pump is going bad. The fuel pump relay will work or it won't, if it's bad, you'll have no pressure at all and the pump won't come on.

93_z28

if its the fuel pump i would recomend the trap door metted to changing it.its a lot easier the dropping the tank

Black93_Formula

alright thanks guys. hopefully i wont have to replace the pump cuz ive done it before on other vehicles and its not somthin i wanna do again lol

Formula350

iTrader: (3)

And to make sure it's a relay, you can swap with another one (make sure they're the same), or just hotwire the pump at the relay (bypass the relay).

Black93_Formula

ok thx man. wut should be the normal fuel pressure range?

Formula350

iTrader: (3)

39 key on, ignition off. ~41psi idle with vacuum line ON and about 43.5 idle with vacuum line OFF (of the regulator that is).