# NHTSA Preliminary Evaluation PE87050
> **FUEL EXPULSION** · Opened 1987-08-20 · Closed 1987-12-22
## Investigation
- **Action number:** PE87050
- **Type:** Preliminary Evaluation
- **Open date:** 1987-08-20
- **Close date:** 1987-12-22
- **Manufacturer:** FLEETWOOD ENTERPRISES, INC.
- **Affected makes:** FLEETWOOD
- **Affected components:** VEHICLE SPEED CONTROL:LINKAGES
- **Affected model years:** 1986, 1987
- **Affected (make, year) variants:** 2
## Summary

SUMMARY OF INFORMATION FROM MANUFACTURER:THE SUSPECT UNITS ARE EQUIPPEDWITH NON-GM PRIMARY FUEL TANKS (SIDE ENTRY RATHER THAN TOP OR CORNERENTRY), BUT USE REMAINDER OF GM SYSTEM.ANALYSIS:FUEL EXPULSION IN THESE VEHICLES CAN OCCUR UNDER A COMBINATIONOF THE FOLLOWING:USING THE FUEL TANK WHEN FULL, HIGH ENGINE LOADING(OR HIGH UNDERHOOD/UNDERCARRIAGE TEMPERATURES), HIGH AMBIENT TEMPERATURE,AND/OR HIGH ALTITUDE.UNDER THE INFLUENCE OF THESE FACTORS, THE GASOLINECAN VOLATIZE IN EXCESS OF THE FUEL EMMISSION SYSTEM CAPACITY RESULTING INFUEL TANK PRESSURIZATION.OF THE 9 REPORTS, 4 ARE 1986, 5 ARE 1987.STATUS:CLOSE OUT PE, OPEN EA AND REDEFINE DEFECT TO ADDRESS CAUSE OF FUELEXPULSION (HIGH UNDERHOOD/UNDERCARRIAGE TEMPERATURE) AND THE EFFECT ONTHE NON-METALLIC FUEL RESERVOIR/UNDERCARRIAGE COMPONENTS.===

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE87050)
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