Fuel system troubleshooting – Aeromotive 11108 - MARINE A1000 FUEL PUMP User Manual
Page 5

Fuel System Troubleshooting
Pump does not run at all.
Do you have voltage at the
pump terminals?
Is the “+”terminal
connected to +12 V and the
“-“ terminal connected to
the battery ground cable?
Is the fuel line going to the
engine compartment
connected to the same side
of the fuel pump as the
power terminals?
Do you have a 100-micron
fuel filter installed on the
inlet side of the fuel pump?
Contact Aeromotive
Check all
electrical
connections.
Connect power
wires to proper
terminals.
Plumb the fuel
pump in the
proper orientation.
Debris may have
entered the fuel
pump and locked
it up, Contact
Aeromotive.
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No
Pump performs poorly or runs intermittently
Is the fuel pressure
regulator you are
using a by-pass
style?
Are you using a
sumped fuel tank or
a fuel cell?
A by-pass style regulator is
required for proper operation of
this product. For EFI we
recommend Aeromotive p/n
13101 or 13109. For carb
applications we recommend
Aeromotive p/n 13204.
A sumped fuel tank or fuel cell
is required for proper product
performance, refer to
Aeromotive tech bulletin #802
“Pickup tubes -vs- sump feed”
for specific details.
Is the fuel line
between the fuel
tank / fuel cell a
minimum of 9/16”
ID or AN-10?
Is the fuel pump
mounted at or below
the half tank fuel
level?
Does the fuel filter
on the inlet side of
the pump have a
100-micron filtration
rating and have a
min. of 60 in
2
area?
Are the fuel filters in
the system been
clean or new?
Clean, high flow inlet plumbing
is required for proper pump
operation, a min. of 9/16” ID or
AN-10 fuel line is required on
the pump inlet side.
Are you driving the
vehicle for periods
of time greater then
30 minute with less
the 10 gallons of
fuel in the tank?
Contact Aeromotive
As the fuel level falls in your
tank it is being recirculated at
an increasing rate, allowing less
time for fuel cool down, in
these cases it is recommended
to use a Fuel Pump Speed
Controller, we recommend
Aeromotive p/n 16306.
The fuel pump must be
mounted such that it is gravity
feed to insure a long and
healthy life.
The fuel filter on the inlet side
of the fuel pump is required to
be rated at 100-micron and have
no less then 60 in
2
filtering
area, for detailed information
refer to Aeromtive tech bulletin
#101 titled “Inlet Filter”.
Insure that all fuel filters are
clean or new, proper filters are
an inexpensive cure to a lot of
fuel system problems. Refer to
Aeromotive tech bulletin #102
titled “Post Pump Filtration”.
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