Chevrolet 2004 Blazer Bedienungshandbuch Seite 12

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Seitenansicht 11
(Section 8 — continued from previous page)
Fuel Tank
For vehicles with full frames, the tank must have a minimum clearance of 2 in. top, front, rear and sides to body and other supports.
Tank may be pressurized to 1.25 PSI maximum to check for final line leakage or for forcing fuel through the system. Pressures greater than
this amount may be detrimental and affect tank durability.
The use of auxiliary fuel tanks is not recommended. If an auxiliary fuel tank is added, the alterer must take responsibility for compliance
with affected motor vehicle safety standards. Also, if an auxiliary fuel tank is added to a gasoline-powered vehicle, the fuel must be drawn
through a pipe at the top of the tank (balance line between tanks is not permitted).
Gasoline fueled vehicles are now equipped with a fuel pump return line. If an auxiliary tank is added, the tank selector valve must include a
return port which returns fuel to the tank from which the fuel is being drawn.
In gasoline engines the fuel pump is located in the fuel tank. The battery must be disconnected before starting any work on the fuel system.
In the use of dual fuel systems, the vehicle operator should strictly adhere to the manufacturer’s procedures for switching from gasoline to
gaseous fuel operation. Improper switching procedures may result in overheating and damage to the exhaust system and the vehicle. The
gaseous fuel tank should not be mounted in an enclosed area of the vehicle, such as the passenger compartment, trunk, etc., and the
system should be vented to the outside of the vehicle. In addition, vehicles converted to gaseous fuels should not be stored in enclosed
places such as garages. Further, General Motors cautions purchasers that the design, location and installation of any type of fuel storage
system involves significant technical and engineering considerations and that these statements on gaseous fuel conversions should not be
interpreted to be an approval by General Motors of any modification to the original equipment fuel system.
Conversions to gaseous fuel should be made in conformance with applicable Federal and State regulations. Removal of emission-control
components, or the addition of gaseous fuel systems which could damage or reduce the longevity of those components and could also
cause the mechanical and emission performance warranty to be voided.
Exhaust System
Particular care should be taken to prevent the possibility of exhaust fumes and carbon monoxide exposure to vehicle occupants in units
completed by body builders. Holes and openings through the floor and alI other parts of the body must be permanently and adequately
sealed by the body builder to avoid exhaust intrusion into any occupant area. If it is necessary to change the exhaust outlet location, the
exhaust discharge must be unobstructed and directed away from occupant areas. Alteration of the exhaust outlet or its position may
increase exhaust noise and render the vehicle illegal in those areas with pass-by noise regulations. All vehicles > 10,000 lbs. GVWR come
under Federal noise regulations, vehicles: < 10,000 lbs. GVWR are regulated by various state and local regulations of the Environmental
Protection Agency; see those regulations for rules, test procedure and noise levels permitted.
S/T SMALL UTILITY – SUV
(
C
HEVY BLAZER & GMC JIMMY
)
S/T Small Utility – SUV 2004
9
PAGE
(Section 8 — continued on next page)
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