AUTT 1040 Syllabus
Subject Code
AUTT
Course Number
1040
Course Title
Automotive Engine Performance
Prerequisites
Prerequisites/Corequisites: AUTT 1010, AUTT 1020
Corequisites
Terms Offered
Offered Fall and Spring
Credit Hours
(2-13-7)
Course Description
This course introduces the basic engine performance systems that support and control four-stroke gasoline engine operations and reduce emissions. Topics include general engine diagnosis, computerized engine controls and diagnosis, ignition system diagnosis and repair, fuel and air induction, exhaust systems, emission control systems diagnosis and repair, and other related engine service.
Course Outcomes
General Engine Diagnosis
Order Description
1 Complete work order to include customer information, vehicle identifying information, customer
concern, related service history, cause, and correction. P-1
2 Identify and interpret engine performance concern; determine necessary action. P-1
3 Research applicable vehicle and service information, such as engine management system
operation, vehicle service history, service precautions, and technical service bulletins. P-1
4 Locate and interpret vehicle and major component identification number. P-1
5 Inspect engine assembly for fuel, oil, coolant, and other leaks; determine necessary action. P-2
6 Diagnose abnormal engine noise or vibration concerns; determine necessary action. P-3
7 Diagnose abnormal exhaust color, odor, and sound; determine necessary action. P-2
8 Perform engine absolute (vacuum/boost) manifold pressure tests; determine necessary action.
P-1
9 Perform cylinder power balance test; determine necessary action. P-2
10 Perform cylinder cranking and running compression tests; determine necessary action. P-1
11 Perform cylinder leakage test; determine necessary action. P-1
12 Diagnose engine mechanical, electrical, electronic, fuel, and ignition concerns; determine
necessary action. P-1
13 Prepare 4 or 5 gas analyzer; inspect and prepare vehicle for test, and obtain exhaust readings;
interpret readings, and determine necessary action. P-3
14 Verify engine operating temperature; determine necessary action. P-1
15 Perform cooling system pressure tests; check coolant condition; inspect and test radiator,
pressure cap, coolant recovery tank, and hoses; determine necessary action. P-1
16 Verify correct camshaft timing. P-1
Computerized Engine Controls Diagnosis and Repair
Order Description
1 Retrieve and record diagnostic trouble codes, OBD monitor status, and freeze frame data; clear
codes when applicable. P-1
2 Diagnose the causes of emissions or driveability concerns with stored or active diagnostic
trouble codes; obtain, graph, and interpret scan tool data. P-1
3 Diagnose emissions or driveability concerns without stored diagnostic trouble codes; determine
necessary action. P-1
4 Check for module communication (including CAN/BUS systems) errors using a scan tool. P-2
5 Inspect and test computerized engine control system sensors, powertrain/engine control
module (PCM/ECM), actuators, and circuits using a graphing multimeter (GMM))/digital storage
oscilloscope (DSO); perform necessary action. P-1
6 Access and use service information to perform step-by-step diagnosis. P-1
7 Diagnose driveability and emissions problems resulting from malfunctions of interrelated
systems (cruise control, security alarms, suspension controls, traction controls, A/C, automatic
transmissions, non-OEM-installed accessories, or similar systems); determine necessary action.
P-3
8 Perform active tests of actuators using a scan tool; determine necessary action. P-1
9 Describe the importance of running all OBD II monitors for repair verification. P-1
Ignition System Diagnosis and Repair
Order Description
1 Diagnose ignition system related problems such as no-starting, hard starting, engine misfire,
poor driveability, spark knock, power loss, poor mileage, and emissions concerns; determine
necessary action. P-1
2 Inspect and test ignition primary and secondary circuit wiring and solid-state components; test
ignition coil(s); perform necessary action. P-1
3 Inspect and test crankshaft and camshaft position sensor(s); perform necessary action. P-1
4 Inspect, test, and/or replace ignition control module, powertrain/engine control module;
reprogram as necessary. P-2
Fuel, Air Induction, and Exhaust Systems Diagnosis and Repair
Order Description
1 Diagnose hot or cold no starting, hard starting, poor driveability, incorrect idle speed, poor idle,
flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, dieseling, and
emissions problems; determine necessary action. P-1
2 Check fuel for contaminants and quality; determine necessary action. P-2
3 Inspect and test fuel pumps and pump control systems for pressure, regulation, and volume;
perform necessary action. P-1
4 Replace fuel filters. P-2
5 Inspect throttle body, air induction system, intake manifold and gaskets for vacuum leaks
and/or unmetered air. P-2
6 Inspect and test fuel injectors. P-1
7 Verify idle control operation. P-1
8 Inspect the integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s),
resonator(s), tail pipe(s), and heat shield(s); perform necessary action. P-1
9 Perform exhaust system backpressure test; determine necessary action. P-1
10 Test the operation of turbocharger/supercharger systems; determine necessary action. P-3
Emissions Control Systems Diagnosis and Repair
Order Description
1 Diagnose oil leaks, emissions, and driveability concerns caused by the positive crankcase
ventilation (PCV) system; determine necessary action. P-2
2 Inspect, test and service positive crankcase ventilation (PCV) filter/breather cap, valve, tubes,
orifices, and hoses; determine necessary action. P-2
3 Diagnose emissions and driveability concerns caused by the exhaust gas recirculation (EGR)
system; determine necessary action. P-1
4 Inspect, test, service and replace components of the EGR system, including EGR tubing, exhaust
passages, vacuum/pressure controls, filters and hoses; perform necessary action. P-1
5 Inspect and test electrical/electronic sensors, controls, and wiring of exhaust gas recirculation
(EGR) systems; perform necessary action. P-2
6 Diagnose emissions and driveability concerns caused by the secondary air injection and catalytic
converter systems; determine necessary action. P-2
7 Inspect and test mechanical components of secondary air injection systems; perform necessary
action. P-3
8 Inspect and test electrical/electronically-operated components and circuits of air injection
systems; perform necessary action. P-3
9 Inspect and test catalytic converter efficiency. P-1
10 Diagnose emissions and driveability concerns caused by the evaporative emissions control
system; determine necessary action. P-1
11 Inspect and test components and hoses of the evaporative emissions control system; perform
necessary action. P-1
12 Interpret diagnostic trouble codes (DTCs) and scan tool data related to the emissions control
systems; determine necessary action. P-1
Engine Related Service
Order Description
1 Adjust valves on engines with mechanical or hydraulic lifters. P-1
2 Remove and replace timing belt; verify correct camshaft timing. P-1
3 Remove and replace thermostat and gasket/seal. P-1
4 Inspect and test mechanical/electrical fans, fan clutch, fan shroud/ducting, air dams, and fan
control devices; perform necessary action. P-1
5 Perform common fastener and thread repairs, to include: remove broken bolt, restore internal
and external threads, and repair internal threads with a threaded insert. P-1
6 Perform engine oil and filter change. P-1
7 Identify hybrid vehicle internal combustion engine service precautions. P-3