Hey, That’s Normal

July 30, 2019
GM notes that 2013-2017 vehicles equipped with GDI engines (gasoline direct injection) may exhibit stalling, hesitation and lack of performance in high ambient temperatures.

GM notes that 2013-2017 vehicles equipped with GDI engines (gasoline direct injection) may exhibit stalling, hesitation and lack of performance in high ambient temperatures.

In ambient temperatures of 100 degrees Fahrenheit or higher, DTCs P2635 and/or P018B may set. The cause: excessively high and sustained ambient temperatures over 100 degrees F (“mainly in TX, AZ, UT, NV, CA and NM) may cause vapor buildup in the fuel feed line. 

If the pump has been replaced and the problem exists, customers can be advised to utilize fuels with octane levels greater than 91, to refrain from extended idle periods, and if possible, to park vehicles in a covered garage. “Replacing the fuel pump will not repair the concern.”

Sponsored Recommendations

Tesla service, repair, and diagnostics

Keep update-to-date on how to maintain your customer's Tesla vehicles.

Tool Review: Ascot Supply 3/4" Drive 600 ft-lbs Split Beam Torque Wrench, No. 168-00600

Reviewed by Eric Moore, manager at DeMary Truck in Columbus, Ohio.

Diagnosing an engine misfire

Recognizing a misfire is the easy part; the challenge is determining its cause.

The ‘Iron Giant’

This technician spent two and half years putting together his ‘giant’ of a toolbox setup.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!