# Service bulletin ATS160715

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: 10087402
- Published by NHTSA: 2016\-12\-28
- Manufacturer's number: ATS160715
- Manufacturer's date: 2016\-10\-19
- NHTSA component: ENGINE

## NHTSA's summary

"TECHLINE SUMMARY ARTICLE \- IF THE ENGINE IS OVERHEATING AND THERE’S ENGINE OIL MIXED IN THE COOLANT RESERVOIR, CHANCES ARE THE CYLINDER HEAD MAY BE CRACKED. A CRACK MAY FORM UNDER THE FRONT AND/OR REAR CAMSHAFT AT THE JOURNALS AND IS A RARE OCCURRENCE. YOU CAN SEE THIS CRACK FROM VISUAL INSPECTION. IT CAUSES ENGINE OIL TO ENTER THE COOLING SYSTEM AND COOLANT TO ENTER THE ENGINE LUBRICATION SYSTEM. REPLACE THE CYLINDER HEAD IF YOU FIND IT’S CRACKED."

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine

## Vehicles listed

- 2011 to 2016 HONDA ODYSSEY
- 2009 to 2014 HONDA PILOT
- 2009 to 2014 HONDA RIDGELINE

## Recalls for the same vehicles and component

- [13V382000](/recalls/nhtsa/13V382000.md), 2013-08-27: ENGINE

## Other bulletins for the same vehicles and component

- [A26\-002](/bulletins/11028516.md), 2026-02-06, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [A26\-001](/bulletins/11028515.md), 2026-02-06, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [A25\-061](/bulletins/11022768.md), 2025-09-05, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [A25\-060](/bulletins/11022767.md), 2025-09-05, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring wear and sticking from sludge. Oil from the crankcase adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [ONL6Z6072025](/bulletins/11021759.md), 2025-08-08, Other: ENGINE. Owner Notification Letter \- the piston ring function can deteriorate due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the Malfunction Indicator Lamp \(MIL\) to come on.
- [A25\-061](/bulletins/11020825.md), 2025-07-23, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring wear and sticking from sludge. Oil from the crankcase adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [A25\-060](/bulletins/11020824.md), 2025-07-23, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
- [AEBM06172025901](/bulletins/11020087.md), 2025-07-02, Other: ENGINE. Dealer Message \- Piston ring effectiveness may be reduced due to excessive wear and oil sludge build\-up, which can cause oil to adhere to the spark plug, potentially leading to carbon fouling and misfire triggering DTCs P0301 through P0304 and cause the MIL to come on.
- [A25\-061](/bulletins/11020085.md), 2025-07-02, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire.
- [A25\-060](/bulletins/11020084.md), 2025-07-02, Service bulletin: ENGINE. Service Bulletin \- The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire.

JSON: [/v1/bulletins/10087402](/v1/bulletins/10087402)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20ATS160715&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10087402&vehicle=Service%20bulletin%20ATS160715)