WenmarOpen by Wenmar Pro

Service bulletin 436508

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id37945
Published by NHTSA1995-02-08
Manufacturer's number436508
Manufacturer's date1994-12-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

MOISTURE MAY BECOME TRAPPED IN THE ENGINE VACUUM LINE BETWEEN TBI UNIT AND MAP SENSOR AND FREEZING, CAUSING A NO START CONDITION. *TW

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
GEO METRO1993, 1994

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

Other bulletins for the same vehicles and component
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
014131995-02-07. Service bulletin. REVISED VACUUM HOSE ASSEMBLIES TO CORRECT A HARD/NO START CONDITION. *TW