Vehicle fuel and exhaust system Chevy Trailblazer 1

Fuel and exhaust system — specifications
General Fuel pressure (key in the ON position, engine off) — 3.3 - 3.7 atm. Electrical resistance of the injector is 11-14 Ohm Tightening torques of threaded...

General information
Warning: Given the increased flammability of gasoline. as well as the explosive nature of its vapors, certain precautions must be taken when performing...

Relieving pressure in the fuel system
Warning: See warning in subsection 1 . Note: After relieving the pressure, it is recommended to wrap the disconnectable fuel line coupling with a wet cloth to...

Fuel Pump/Fuel Pressure — Check
Warning: See warning in subsection 1 . Checking the performance of the fuel pump 1. If poor fuel supply is observed, first inspect all fuel lines to ensure...

Fuel lines and their connectors — restoration and replacement
Warning: See warning in subsection 1 1. Before working on fuel lines or their connectors, it is necessary to relieve pressure in the system (see subsection 2)...

Fuel tank — removal and installation
Warning: See warning in subsection 1 . Note: If necessary, clean the fuel tank and areas around the fuel lines and fuel hoses to prevent fuel system clogging....

Fuel Tank Cleaning and Restoration — General Information
1. The fuel tank on the described vehicles cannot be restored. If damage to the tank is detected, it must be replaced. 2. All work on cleaning a tank...

Fuel pump — removal and installation
Warning: See warning in subsection 1 . 1. Relieve the pressure in the fuel system ( see subsection 2 ). 2. Disconnect the negative battery cable. 3. Remove the...

Fuel System Measuring Unit — Checking Performance and Replacement
Warning: See warning in subsection 1 . Checking functionality 1. Remove the tank and fuel pump module (see subsection 5 and 7 ). 2. Connect the ohmmeter...

Air cleaner housing and resonator — removal and installation
1. If necessary, remove the radiator diagonal bar. 2. Loosen the three screws that secure the air cleaner cover, then remove the filter element and disconnect...

Fuel injection system — general information
All the vehicles described use a multi-point sequential fuel injection (MFI) system, which includes three basic subsystems: the air intake subsystem, the...

Fuel Injection System — General Functional Check
Note: The following procedure assumes that the fuel pressure is normal ( see subsection 3 ). 1. Inspect all electrical connectors related to the system. Make...

Throttle body — removal and installation
Warning: Allow the engine to cool completely before performing this procedure 1. Remove the intake air duct together with the resonator ( see subsection 9 )....

Fuel Pressure Regulator — Replacement
Warning: See warning in subsection 1. 1. Relieve the pressure in the fuel system ( see subsection 2 ). 2. Disconnect the negative battery cable. 3. Remove the...

Fuel receiver and injectors — removal and installation
Warning: See warning in subsection 1 . Note: When replacing elements of the receiver/injector module, it is necessary to take into account the serial numbers...

Exhaust System Maintenance — General Information
Warning: inspection and repair of exhaust system components is only possible after a certain period of time has passed since the engine has been turned off, as...

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