Service bulletin 37844.1.0

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.

NHTSA's summary

This is a TJ - text, plus 1 attached PDF - and 2 .MOV files If a noise from the engine occurrs during idling, refer to the attached sound file for reference and comparison; see attachment TJ_37844_1.MOV. If the noise corresponds to the attached sound file, make sure that the fresh air hose is not squeezed or kinked; see attachment TJ_37844_2.MOV. For location and correct clip positions, see attachment TJ_37844_1.pdf. Note that this noise is similar to the chirping noise from the camshaft seal described in TJ 36551.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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