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Page Title:
Fuel to intake manifold flame heater will not operate (ignite). |
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 56. TROUBLESHOOTING INTAKE MANIFOLD FLAME HEATER FUEL SYSTEM - Continued
Corrective action
Probable causes
Malfunction
c.
Defective fuel inlet or
c.
Replace defective sole-
1.
No fuel to intake
noid valves (par. 82).
manifold flame
outlet solenoid valves.
heater -
Continued.
Replace the harness
d.
Broken wires in ignition
d.
harness.
Remove restrictions.
Heater spray nozzle or
e.
e.
tubes restricted or
Replace or repair heater
plugged.
spray nozzle (par. 79).
2.
Fuel to intake
a.
Defective spark plug.
a.
Clean or replace defec-
--
manifold flame
tive spark plug (par. 79).
heater will not
operate (ignite).
--.
b
Defective ignition unit.
Replace defective igni-
b.
tion unit (par. 80c).
--.
c
Repair or replace elec -
Defective ignition harness
c.
or ignition unit to heater
trical leads (par. 230).
cable.
58
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