Service bulletins for the 2003 Chevrolet Express
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.
585 on file from NHTSA, as of 2026-10-19.
About P0336 on the 2003 Chevrolet Express: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0336 are shown. Show all
| 00700A | 2004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3L L35 ENGINE WIDE OPEN THROTTLE DIAGNOSTIC TROUBLE CODE (DTC) P0335, P0336, P0339. *TT *MJ |
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| 030604033 | 2003-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE P0336. *TT UPDATE. TO INCLUDE 2004 ISUZU NQR COMMERCIAL MODELS. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.