Corvette and Camaro Have Oil Pump Problems

May 24, 2022

This bulletin applies to 2014-2019 Chevrolet Corvette and 2016-2019 Camaro vehicles equipped with a 6.2L LT1/LT4 engine. You may find a DTC P06DD set in addition to no or low oil pressure.

This bulletin applies to 2014-2019 Chevrolet Corvette and 2016-2019 Camaro vehicles equipped with a 6.2L LT1/LT4 engine. You may find a DTC P06DD set in addition to no or low oil pressure.

Short tensioner spring.

The oil control valve may be stuck off, commanding high oil pressure (95 psi) and/or the oil pump face may be damaged. The tensioner spring in the timing chain guide may be “short”, not fully seating into the guide pivot end. Cycling the oil pump control valve will not cause changes in oil pump response. A broken tensioner shoe may allow the spring to rub a hole in the oil pump.

Replace the timing chain tensioner guide. If the oil pump face is damaged and/or worn though, replace the oil pump. Inspect engine bearings for damage that may have resulted in debris from the oil pump.

A broken tensioner shoe.
About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of  specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

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