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NHTSA Office of Defects Investigation

Engineering Analysis EA88-001: BRAKE POWER ASSIST

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA88-001 on October 1, 1987 and closed it on March 1, 1988. NHTSA's investigations file lists 30 models from 3 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA88-001 (also written EA88001)
Investigation type
Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
Status
Closed March 1, 1988
Opened
Closed
Vehicle or equipment manufacturer
Chrysler (FCA US, LLC)
Component
Service Brakes, Hydraulic
Vehicles and equipment
30 models from 3 makes, including the Chrysler Fifth Avenue and Dodge B1

A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA88-001.

SUMMARY OF INFORMATION FROM MANUFACTURER:CHRYSLER RECALLED, IN CANADA,67,602 1984 THROUGH 1987 PASSENGER CARS, TRUCKS, AND VANS EQUIPPED WITH THE5.2L ENGINE FOR INTERMITTENT LOSS OF BRAKE POWER ASSIST ON A SECONDAPPLICATION OF THE BRAKE PEDAL.THE DEFECT WAS A RESULT OF THE BRAKEBOOSTER VACUUM HOSE PORT IN THE BASE OF THE CARBURETOR BEING BLOCKED WITHFROZEN MOISTURE AFTER AN EXTENDED PERIOD OF HIGHWAY DRIVING AT LOW AMBIENTTEMPERATURES.TO PREVENT THIS DEFECT FROM OCCURRING, THE VACUUM SOURCE FORTHE BRAKE BOOSTER WAS RELOCATED FROM THE BASE OF THE CARBURETOR TO THEINTAKE MANIFOLD.IT WAS STATED THAT REPORTS OF THE ALLEGED DEFECT HAVEOCCURRED IN THE NORTHERN AREAS OF CANADA.ANALYSIS:REVIEW OF MANUFACTURER'S DATA INDICATED AT LEAST 4 SIMILAR U.S.VEHICLES HAVE EXPERIENCED FAILURES CONSISTENT WITH THOSE REPORTED IN THECANADIAN MARKET.ONE VEHICLE WAS A MANUFACTURER TEST VEHICLE.THE STATESIN WHICH THESE REPORTED FAILURES OCCURRED ARE ALASKA, MINNESOTA (2), ANDWISCONSIN.IT IS THIS ENGINEER'S OPINION THAT THERE IS SUFFICIENT EVIDENCETO SUGGEST THAT THE ALLEGED DEFECT COULD BE REPRODUCED BY PERFORMING TESTSIN A CONTROLLED ENVIRONMENTAL CHAMBER.STATUS:ANALYZING MANUFACTURER'S RESPONSE AT 12/09/87.===

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA88-001. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.

Chrysler

All Chrysler recalls

Dodge

  • Dodge B1

    • 1984, 1985, 1986, 1987

  • Dodge B100

    • 1984, 1985, 1986, 1987

  • Dodge B150

  • Dodge B200

    • 1984, 1985, 1986, 1987

  • Dodge B250

  • Dodge B300

    • 1984, 1985, 1986, 1987

  • Dodge B350

  • Dodge D1

    • 1984, 1985, 1986, 1987

  • Dodge D2

    • 1984, 1985, 1986, 1987

  • Dodge D3

    • 1984, 1985, 1986, 1987

  • Dodge D50

    • 1984, 1985, 1986, 1987

  • Dodge D100

    • 1984, 1985, 1986, 1987

  • Dodge D150

    • 1984, 1985, 1986, 1987

  • Dodge D200

    • 1984, 1985, 1986, 1987

  • Dodge D250

    • 1984, 1985, 1986, 1987

  • Dodge D300

    • 1984, 1985, 1986, 1987

  • Dodge D350

    • 1984, 1985, 1986, 1987

  • Dodge D450

    • 1984, 1985, 1986, 1987

  • Dodge D500

    • 1984, 1985, 1986, 1987

  • Dodge D600

    • 1984, 1985, 1986, 1987

  • Dodge D700

    • 1984, 1985, 1986, 1987

  • Dodge D800

    • 1984, 1985, 1986, 1987

  • Dodge Diplomat

    • 1984, 1985, 1986, 1987

  • Dodge Ramcharger

    • 1984, 1985, 1986, 1987
All Dodge recalls

Plymouth

  • Plymouth B100

    • 1984, 1985, 1986, 1987

  • Plymouth B200

    • 1984, 1985, 1986, 1987

  • Plymouth B300

    • 1984, 1985, 1986, 1987

  • Plymouth B350

    • 1984, 1985, 1986, 1987

  • Plymouth Fury

    • 1984, 1985, 1986, 1987
All Plymouth recalls

What an NHTSA investigation is

NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.

An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.

Free VIN check: decode a VIN to see its year, make and model.

Sources

NHTSA's investigation record for EA88-001

Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.