I have a 2001 Pontiac Grand Am GT 3.4 V-6, I had a no start
situation and determined that the fuel pump was not working. I
replaced the fuel pump and checked it by hooking a jumper directly
from battery before installing, the fuel pump worked fine. After
installing the gas tank I am still getting no fuel from the fuel pump, I
have checked and replaced the fuel pump relay and checked all
fuses, including. The car will start and run with starting fluid until the
starting fluid runs out and then dies. What else can I check, could the
PCM be bad Thank You.
situation and determined that the fuel pump was not working. I
replaced the fuel pump and checked it by hooking a jumper directly
from battery before installing, the fuel pump worked fine. After
installing the gas tank I am still getting no fuel from the fuel pump, I
have checked and replaced the fuel pump relay and checked all
fuses, including. The car will start and run with starting fluid until the
starting fluid runs out and then dies. What else can I check, could the
PCM be bad Thank You.
Answer: It's possible you could have ruined the fuel pump by
running outside the tank by hooking it up to a battery. Try
checking for power and ground at the fuel pump connector,
and if you have it, then you have a bad fuel pump. If you don't
have power there while cranking or the 2 second prime with the
key in the 'on' position, then you have a wiring issue or some
other problem that is killing your fuel signal. Things that can kill
the fuel signal are a bad PCM, corroded or broken wiring, a
theft deterrent problem, etc. Since it runs on carb spray, you
obviously have spark, air, and compression. I would assume
that the crank sensor and ignition module are ok, otherwise you
probably wouldn't have spark. You should check and make
sure the theft or security light isn't flashing or on steady after
trying to start the car. That is a common problem on your
vehicle and a theft deterrent issue, like a passlock sensor,
would stop the fuel delivery signal. I'd start by re-checking the
fuel pump just to make sure you have power back there and
you didn't smoke it when jumping it while not submerged in gas.
running outside the tank by hooking it up to a battery. Try
checking for power and ground at the fuel pump connector,
and if you have it, then you have a bad fuel pump. If you don't
have power there while cranking or the 2 second prime with the
key in the 'on' position, then you have a wiring issue or some
other problem that is killing your fuel signal. Things that can kill
the fuel signal are a bad PCM, corroded or broken wiring, a
theft deterrent problem, etc. Since it runs on carb spray, you
obviously have spark, air, and compression. I would assume
that the crank sensor and ignition module are ok, otherwise you
probably wouldn't have spark. You should check and make
sure the theft or security light isn't flashing or on steady after
trying to start the car. That is a common problem on your
vehicle and a theft deterrent issue, like a passlock sensor,
would stop the fuel delivery signal. I'd start by re-checking the
fuel pump just to make sure you have power back there and
you didn't smoke it when jumping it while not submerged in gas.
