Tech Tip: Kia Sorento barely runs after new long block installed

After a Kia dealer replaced the long block under the SC147 Theta II Engine Safety Recall campaign, the Sorento was barely able to start and idle.

Richard Diegle

Related To:

ALLDATA

May 23, 2022

Vehicle: 2012 Kia Sorento, 2WD, L4-2.4L, VIN 6, (GDI), Automatic Transmission/Transaxle

Mileage: 97,886

Problem: After a Kia dealer replaced the long block under the SC147 Theta II Engine Safety Recall campaign, the Sorento was barely able to start and idle. The MIL was on. The Kia dealer recommended replacing the catalytic converters, but since the MIL was not on before the long block was replaced, the owner decided to have the vehicle towed to an independent shop for a second opinion.

Case Details: The technician retrieved diagnostic trouble code (DTC) P0087 – Fuel Rail/System Pressure Too Low. He checked the low-pressure pump (LPP) supply fuel pressure to the high-pressure pump (HPP). It was at specifications (65 psi / 4.5 bar), so next he turned his attention to the high-pressure fuel system. The technician discovered that the cam follower which drives the HPP was missing. It was not transferred over during the engine long block replacement.

Confirmed Repair: A new cam follower was installed, and the DTC P0087 was cleared. After a lengthy test drive, the technician verified the engine ran great and no DTCs returned. Problem solved!

Reprinted with permission from ALLDATA.

About the Author

Richard Diegle

Senior Automotive Editor for ALLDATA

Rich Diegle has been in the automotive industry since 1978. After graduating from a local community college, he began working at a Nissan dealership as a used car technician. Since then, he’s worked as a Nissan and ASE master automotive technician, shop owner, marketing copywriter, automotive editor, public relations manager, instructor, ALLDATA Tech-Assist team manager, and a senior automotive editor.