i have blow by coming out of my dip stick tube plus a code of p1101

Asked by GuruDVFZP3 Sep 05, 2024 at 03:24 PM about the 2017 Chevrolet Cruze L Sedan FWD

Question type: Maintenance & Repair

2 Answers
311,405

Gene answered 7 months ago

Mass air flow sensor code, pull the sensor and clean it with Mass Air Flow Sensor cleaner first, then check the crankcase ventilation system, clean or replace defective components, clear the codes and start it up, if the code returns then the sensor could be bad or you have fresh air leaks in the intake tubing. If the blow by is now gone then you have fixed your problem there but it not then you have internal engine problems, rings, pistons, cylinder walls.

Mark helpful
158,585

James answered 7 months ago

If you're getting a puffing type of blow by, with the engine running, the head gasket has blown into the crankcase. Jim

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