i have a 98' gt and its all stock. Sometimes it just cranks and wont start but i can hear the pump coming on. if i turn the inginition on and off twice (dumping in extra fuel) than it usually helps.....seeing this i put a pressure guage on the fuel rail and found that when i turn the key, i get a spike of pressue but than it immediately goes back to zero and the car wont start....as soon as the car does start however, than the pressure is fine.....i had to replace the fuel pump a couple months ago but this problem has been happening since before i replaced it. not sure what is causing this problem so if anybody has any advice than that would be awesome!!!
strating problems (fuel related)
- Thread starter holy_cent
- Start date
wmburns
SN Certified Technician
Leaky fuel injector, bad fuel pump check valve, or bad pressure regulator.
If leaky fuel injector, would expect to smell gas when key cycled.
A bad fuel pump check valve would have to be totally bad to allow immediate presure leak down. Did you replace the entire fuel pump assembly or just the pump?
Possible a bad regulator. Hands down, the easiest part to replace.
In any case, the leak has to be big to have the pressure bleed down so quickly.
If leaky fuel injector, would expect to smell gas when key cycled.
A bad fuel pump check valve would have to be totally bad to allow immediate presure leak down. Did you replace the entire fuel pump assembly or just the pump?
Possible a bad regulator. Hands down, the easiest part to replace.
In any case, the leak has to be big to have the pressure bleed down so quickly.
Similar threads
