# Service bulletin 17\-NA\-159

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10137655
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 17\-NA\-159
- Manufacturer's date: 2017\-05\-10
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE \(PCV\)

## NHTSA's summary

This technical bulletin provides a procedure to Replace the PCV valve tube assembly to correct a condition of the engine make a whistle noise at idle and during engine shut down due to a restriction in the positive crankcase ventilation \(PCV\) valve tube assembly.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10137655-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10137655-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Exhaust and emissions, Crankcase ventilation \(PCV\)

## Vehicles listed

- 2017 GMC ACADIA

## Other bulletins for the same vehicles and component

- [PIP3423P](/bulletins/10144453.md), 2018-09-17, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE \(PCV\). This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft.

JSON: [/v1/bulletins/10137655](/v1/bulletins/10137655)

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