Although the article is dated 1966, very little changed in the braking systems over the next few years, so that most aspects of this troubleshooting guide is still very applicable to later vehicles.
FYI: The TSB article does include references to 'trucks' but in this case it generally refers to medium/heavy trucks. As such, any references to wedge-style or cam-style brakes can be disregarded....unless you're using the article to troubleshoot a medium/heavy truck so equipped.
Article 964 - Brake System Diagnosis
TSB #54 - December 2, 1966
BRAKE SYSTEM PROBLEM CONDITIONS - TABLE OF CONTENTS
PROBLEM CONDITION
NOISE CONDITIONS
- Disc or Drum Brakes — Cars or Trucks Page
- Disc or Drum Brakes — Cars or Trucks
- Disc or Drum Brakes - Cars or Trucks (Including Air Hydraulic Wedge-Type and Cam-Type Air Brakes)
- F. Vehicle Pulls to One Side — Brakes Applied
G. Vehicle Pulls to One Side When Driving — Brakes Released
H. Brake Grab or Inadvertent Lock-Up — Brakes Applied
I. Excessive Pedal Travel and/or Low Pedal
J. Brakes Do Not Apply
K. Excessive Pedal Effort Required To Fully Apply Brakes
L. Pedal Feels Spongy (Brakes Fully Applied)
M. When Fully Depressed, Brake Pedal Slowly Moves to Floor
N. Insufficient Braking With Brakes Fully Applied
O. Brake Drag (Slow or Incomplete Release) — Brakes Released
Brake Booster - Disc or Drum Brakes - Cars or Trucks
P. Rough Engine Idle or Stall — Brakes Released
Q. Rough Engine Idle or Stall — Brakes Applied
R. Brakes Do Not Release — Trucks Only
S. Brake Pedal Kicks Back When Applied — Trucks Only
- F. Vehicle Pulls to One Side — Brakes Applied
- T. Parking Brake Will Not Fully Return or Release — Cars Only
U. Parking Brake Will Not Fully Return or Release — Trucks only
V. Parking Brake Requires Excessive Pedal Effort to Lock — Cars Only
W. Parking Brake Releases Inadvertently — Cars Only
X. Parking Brake Pedal Has Excessive Travel (Won't Hold) — Cars Only
Y. Parking Brake Will Not Hold (No Application) — Trucks Only
Z. Dual Brake System Warning Lamp Does Not Light
AA. Dual Brake System Warning Lamp Stays Lit
- T. Parking Brake Will Not Fully Return or Release — Cars Only
- Air Brake — Air Supply System — Trucks Only
- AB. Excessive Oil or Water in the Brake System
AC. Continuous or Intermittent Compressor Knocks
AD. Air Pressure Below Normal
AE. Air Pressure Rises Above Normal
AF. Safety Valve Blows-Off
AG. Quick Air Pressure Drop With Engine Stopped — Brakes Released; Brakes Applied
AH. Brakes Release Too Slowly or Will Not Release
AI. Low Pressure Indicator Valve Does Not Operate
- AB. Excessive Oil or Water in the Brake System
