2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1843

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1843

* Vacuum hoses for splits, kinks, and improper connections

* Insufficient fuel in the tank

* Low fuel pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control Systems/Testing and

Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain Management/Computers and

Control Systems/Testing and Inspection/Component Tests and General Diagnostics).

* Fuel contamination-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain Management/Computers

and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without

Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and Air

Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)) for Gasoline or Fuel Composition Diagnosis

(See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics) for E85.

* Malfunctioning fuel injectors-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and Exhaust/Exhaust System/Testing and

Inspection/Symptoms - Engine Exhaust).

* Missing, loose, or leaking exhaust components from the HO2S forward-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and

Exhaust/Exhaust System/Testing and Inspection/Symptoms - Engine Exhaust).

* Vacuum leaks at the intake manifold, the throttle body, and the injector O-rings

* The air induction system and the air intake ducts for leaks or for a missing air filter element

* A cracked EVAP canister

* Evaporative pipes obstructed or leaking

* The crankcase ventilation system for leaks

* The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system

* The HO2S signal circuit open, shorted to ground, or shorted to the low reference circuit

* Malfunctioning engine components-Refer to Symptoms - Engine Mechanical (See: Engine, Cooling and Exhaust/Engine/Testing and

Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).

P0172 or P0175

Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The

reading should be between -19 and 0 %.

If not within the specified range, inspect for the following:

* With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter.

The MAP sensor parameter should be between 19-42 kPa.

瀚慠efer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor parameter is not between 19-42 kPa.

* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.

瀚慠efer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor

parameter is not within 2-6 g/s at idle.

* Vacuum hoses for splits, kinks, and improper connections

* The air intake duct for being collapsed or restricted

* The air filter for being dirty or restricted

* Objects blocking the throttle body

* Excessive fuel in the crankcase due to leaking fuel injectors

* The evaporative emissions control system for improper operation

* Excessive fuel pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain

Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics).

* Malfunctioning fuel injectors-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain

Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics).

* Fuel contamination-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain Management/Computers

and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without

Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and Air

Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)).

* The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system

* The HO2S signal circuit shorted to voltage

Repair Instructions

* Air Cleaner Assembly Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner

Housing/Service and Repair)

* Air Cleaner Element Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner

Housing/Air Filter Element/Service and Repair)

* Air Cleaner Resonator Outlet Duct Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Air

Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service and Repair/Air Cleaner Resonator Outlet Duct Replacement)

* Evaporative Emission Canister Replacement (1500 Series) (See: Powertrain Management/Emission Control Systems/Evaporative Emissions