Owners of 2012-2018 Chevy Captiva and 2010-2017 Equinox vehicles equipped with a 2.4L engine may comment about an SES light on and a rough running condition and/or an engine run-on condition. DTC P0172 may be set. In most cases, the crankcase will have obvious fuel contamination. This may be a result of the high-pressure fuel pump leaking fuel into the crankcase when the plunger is depressed.
Check the low-side fuel pressure leak down with a mechanical gauge. If fuel pressure leak down is present with the J37287 fuel line shutoff adapter installed and closed, follow the fuel pump replacement procedure in the service manual to replace the high-pressure fuel pump. Also, change the engine oil and filter.
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.
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.