Fuel System; Fuel Filter; Mechanical Fuel Pump; Fuel Tank And Lines - Pontiac TRANS AM 1977 Service Manual

FUEL SYSTEM 6C-1
SECTION 6C
FUEL SYSTEM
CONTENTS OF THIS SECTION
GENERAL DESCRIPTION
Fuel System
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6C-1
DIAGNOSIS
Fuel System Diagnosis
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6C-2
CARBURETION
5210
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6C-8
M2MC 200
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6C-37
2GC/2GE
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6C-21
M4MC
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6C-50
FUEL SUPPLY
General Description
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6C-66
On-Car Service
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6C-67
ACCELERATOR CONTROLS
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6C-69
SPECIFICATIONS
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6C-73
All new 1977 Pontiacs are certified by the United contingent on certain adjustments being set to factory
States Environmental Protection Agency as conforming to standards. For this reason, the factory procedure for setting
the requirements of the regulations for the control of air ignition timing, and low idle must be followed exactly when
pollution from new motor vehicles. This certification is
adjustments are made.
GENERAL DESCRIPTION
FUEL SYSTEM
CAUTION: All engines require the use of
unleaded fuel only. Use of leaded and/or low lead
fuels can result in engine damage and reduce the
effmtiveness of the Emission Control Systems.
CARBURETOR
All engines are equipped with either a 2 barrel or 4 barrel
carburetor attached to the intake manifold.
FUEL FILTER
All engines have a pleated paper fuel filter and check
valve assembly located in the carburetor inlet.
All cars have a woven plastic fuel filter in the fuel tank
on the lower end of the pick-up pipe.
ELECTRIC FUEL PUMP
The electric fuel pump is located in the fuel tank integral
with the gage unit, but is separately serviceable.
MECHANICAL FUEL PUMP
All models except H-Series are equipped with
mechanical fuel pumps located near the front of the engine.
These pumps are driven by an eccentric on or attached to the
camshaft. Motion is transmitted either through direct pump
arm contact or by means of a push rod between the cam and
the pump arm.
FUEL TANK AND LINES
In all models, except A-body station wagons, the fuel
tank is attached under the rear body pan by two (2) straps.
"A" station wagons have a fuel tank mounted in the left
rear quarter panel area. To fill the tank, lift the spring-loaded
filler door and remove the filler cap.