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TROUBLESHOOTING OIL LEAKS: The Filter Often Gets the Blame

TROUBLESHOOTING OIL LEAKS: The Filter Often Gets the Blame

July 18, 2024

Nothing is more frustrating for the vehicle owner than a puddle of oil on their carport floor or the stench of oil on a hot engine or exhaust system following a lube service. It is equally frustrating for the lube shop as they must correct the problem, losing billable labor time. We have seen customers […]

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Diagnosing Engine Performance Complaints: Misfire Codes Can Be a Diagnostic Challenge

Diagnosing Engine Performance Complaints: Misfire Codes Can Be a Diagnostic Challenge

June 24, 2024

When diagnosing engine performance complaints such as misfire symptoms, be advised that several systems and components can contribute to those symptoms. When considering single or multiple misfire codes, some checks may seem farfetched but trust me if not all are considered the symptoms can elude the most experienced technician, resulting in a misdiagnosis. When this […]

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TROUBLESHOOTING PERFORMANCE ISSUES: Chemicals May Provide the Cure

TROUBLESHOOTING PERFORMANCE ISSUES: Chemicals May Provide the Cure

May 8, 2024

Pinpointing the reason for a crank but no-start, extended cranking, rough idle or misfire symptoms can be a challenge that can consume a lot of diagnostic time to resolve the complaint. Often the Malfunction Indicator Light (MIL) will be illuminated and a PO300 random misfire code may be stored in memory. If you are lucky, […]

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Lean Fuel Trim Codes: They Can Challenge the Experienced Technician

Lean Fuel Trim Codes: They Can Challenge the Experienced Technician

April 10, 2024

The 2013 Ford F150 equipped with a 3.5L EcoBoost engine was running perfectly. With the exception of a drop in fuel economy, there was no indication of a problem until the Check Engine light in the dash illuminated. A system scan revealed P2098 code stored in memory, which represents Post Catalyst Fuel Trim System Too […]

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Filtration and Lubrication Concerns When Pressurization Symptoms Occur the Oil Filter Is Often Blamed

Filtration and Lubrication Concerns When Pressurization Symptoms Occur the Oil Filter Is Often Blamed

March 1, 2024

When filters bulge, gaskets blow, or filters dislodge from their mounted position on the engine, the oil filter is almost always blamed. Some install the second or third filter still convinced the filter is the cause. The filter is the victim, as over pressurization is the reason for the event and these issues have plagued […]

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Diagnostic Challenges That Can Elude an Experienced Technician

Diagnostic Challenges That Can Elude an Experienced Technician

January 9, 2024

Vehicles today incorporate a maze of electronic components that must be considered when troubleshooting a performance related symptom. A vast arsenal of test equipment is necessary to communicate with the electronic systems and components. Systems are so connected that it is difficult for the technician to distinguish between a mechanical, electrical, fuel or emission related […]

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FOUR-WHEEL AND ALL-WHEEL DRIVE CHALLENGES: Service Tips for Common Customer Complaints

FOUR-WHEEL AND ALL-WHEEL DRIVE CHALLENGES: Service Tips for Common Customer Complaints

November 1, 2023

Four-Wheel and All-Wheel Drive vehicles have flooded the market. Look around your neighborhood, parking lots, daily traffic routes, etc. They come in the form of trucks and SUVs, many of which will never encounter off-road or inclement weather conditions that would require a four-wheel drive application. With these additional driveline components come some challenges for […]

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Oil Consumption: It May Be a Normal Characteristic

Oil Consumption: It May Be a Normal Characteristic

September 12, 2023

When dealing with oil consumption complaints, how much should be considered as too excessive? Is the engine consuming an excessive amount of oil or should the amount consumed be considered a normal characteristic? This is especially a concern with the extended service intervals, which may result in the vehicle being driven twice the mileage when […]

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TURBOCHARGED ENGINES: Are You Recommending the Required Services?

TURBOCHARGED ENGINES: Are You Recommending the Required Services?

July 20, 2023

Turbocharged engines are becoming commonplace as the vehicle manufacturers are utilizing smaller displacement engines fitted with turbochargers. Turbochargers and direct fuel injection can make a smaller displacement engine behave like a larger displacement engine, while accomplishing better fuel economy. With this technology comes some challenges, especially in the area of required maintenance. Failure to provide […]

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TROUBLESHOOTING DRIVELINE NOISES: Identifying Factory Solutions

TROUBLESHOOTING DRIVELINE NOISES: Identifying Factory Solutions

May 5, 2023

GM TRANSFER CASE NOISES Customer complaints involving howling, whining, shudder or grinding noises during parking lot maneuvers in Auto Mode or highway speeds in 4HI or Auto may occur on four wheel drive GM trucks and SUV vehicles. Vehicles affected range from 2014–2023 year models. Specific applications can be identified in GM Service Bulletin 19-NA-136. […]

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