ASE G1

A technician is performing an oil change on a vehicle with a 5-quart oil capacity. The vehicle has been sitting for 2 hours after being driven. What is the correct procedure?

• ADrain the oil immediately and refill with 5 quarts of new oil
• BWarm up the engine for 5 minutes, then drain the oil and refill with the specified amount
• CAdd 1 quart of fresh oil to the old oil before draining to flush the system
• DDrain the oil cold and refill with 6 quarts to compensate for residual oil

When replacing an oil filter, the technician notices oil leaking from the filter mounting surface after installation. What is the MOST likely cause?

• AThe filter is defective and needs to be replaced with a different brand
• BThe old filter gasket remained on the mounting surface, creating a double-gasket condition
• CThe new filter was not filled with oil before installation
• DThe engine oil pressure is too high for the filter design

During a routine inspection, the technician finds the engine air filter to be lightly dirty with some debris. The filter was replaced 15,000 miles ago. What is the correct recommendation?

• AReplace the filter immediately regardless of condition
• BClean the filter with compressed air blowing from the outside inward
• CReplace the filter only if it shows visible damage or restricts airflow
• DClean the filter with soap and water, then reinstall

A technician is replacing spark plugs on an engine with aluminum cylinder heads. What is the MOST important consideration during installation?

• AApply anti-seize compound to all spark plug threads regardless of manufacturer recommenda…
• BUse a torque wrench to tighten to the specified torque to prevent thread damage
• CHand-tighten only to avoid over-torquing the plugs
• DAlways replace spark plugs when the engine is hot for easier removal

During inspection, the serpentine belt shows small cracks across the ribbed surface but the ribs are not missing. What is the correct recommendation?

• AThe belt is acceptable and does not need replacement
• BReplace the belt immediately as cracking indicates imminent failure
• CReplace the belt if cracks are deep enough to reach the fabric backing or if pieces are m…
• DApply belt dressing to extend the belt life

A technician is performing a coolant flush on a vehicle with a history of cooling system neglect. The old coolant is very dirty and contaminated. What is the BEST procedure?

• ADrain and refill with new coolant only, as flushing can dislodge deposits that may clog t…
• BUse a chemical flush cleaner, run the engine, then drain and refill with the specified co…
• CFlush only with tap water multiple times, then refill with straight antifreeze for maximu…
• DReplace the radiator along with the coolant to ensure cleanliness

A customer reports slow cranking, especially on cold mornings. Battery voltage measures 12.4V with the engine off. What should the technician do NEXT?

• AReplace the battery immediately as the voltage is too low
• BPerform a load test or conductance test to determine battery capacity
• CCharge the battery and return the vehicle to the customer
• DCheck the alternator output as the battery voltage indicates undercharging

When replacing a battery, the technician notices the replacement battery has a vent tube fitting but the old battery did not. What is the correct action?

• AInstall the battery without connecting the vent tube since the original did not have one
• BEnsure the vent tube is properly connected to route battery gases safely away from the ve…
• CReturn the battery as it is not the correct application
• DSeal the vent fitting with a plug to prevent acid leakage

When checking automatic transmission fluid level, the dipstick shows the fluid at the "ADD" mark when the engine is cold. What is the correct procedure?

• AAdd fluid immediately to bring it to the "FULL" mark while cold
• BWarm up the engine to operating temperature and check the fluid level on the hot marks
• CThe level is acceptable and no action is needed
• DDrain and refill the transmission with new fluid

The automatic transmission fluid appears dark brown with a slight burnt smell but no debris. The vehicle has 45,000 miles since the last service. What is the correct recommendation?

• APerform a complete transmission fluid exchange service
• BAdd a transmission conditioner to restore fluid properties
• CReplace the transmission as the burnt smell indicates internal damage
• DThe fluid condition is normal and service is not required

A technician notices red fluid leaking from the front of the transmission where it meets the engine. The fluid level is slightly low. What is the MOST likely source of the leak?

• ATransmission pan gasket
• BFront transmission seal or torque converter seal
• COutput shaft seal at the driveshaft
• DTransmission cooler line connection

The transmission fluid on the dipstick appears pink and milky. What does this condition indicate?

• AThe fluid is new and has been properly conditioned
• BCoolant contamination from a leaking transmission cooler in the radiator
• CThe transmission is overheating and the fluid is breaking down
• DNormal condensation in the transmission fluid

A front-wheel-drive vehicle exhibits a clicking noise when turning corners. The noise increases with steering angle. What is the MOST likely cause?

• AWorn wheel bearings
• BWorn outer CV (constant velocity) joints
• CWorn inner CV joints
• DDamaged suspension struts

During inspection, the technician finds a CV boot with a small tear that is leaking grease but the joint shows no play. What is the correct repair recommendation?

• AReplace the entire axle assembly as the joint is contaminated
• BReplace the CV boot and repack the joint with new grease if caught early
• CApply silicone sealant to the tear and monitor for further leakage
• DThe small tear is not a concern and requires no action

A technician hears a growling noise that changes with vehicle speed and becomes louder during cornering. The noise appears to come from the front. What is the MOST likely cause?

• AWorn brake pads
• BWorn wheel bearing
• CUnbalanced tires
• DWorn strut mounts

During a rear-wheel-drive vehicle inspection, the technician notices the driveshaft has a small dent in the tube but rotates smoothly with no vibration. What is the correct recommendation?

• AReplace the driveshaft immediately as any damage is unsafe
• BThe driveshaft is acceptable if there is no vibration and balance is not affected
• CHave the dent repaired by a driveshaft specialist
• DApply structural epoxy to reinforce the dented area

The rear differential fluid appears metallic gray with fine particles visible on the drain plug magnet. The fluid has 30,000 miles of service. What is the correct recommendation?

• AReplace the differential as metal particles indicate internal failure
• BThis is normal wear; drain and refill with the specified gear oil
• CAdd a friction modifier to reduce wear
• DThe fluid is contaminated and requires flushing with solvent