Unit is in excellent condition, but otherwise requires a new accumulator (ACDelco ). Accumulator is not completely bad, but weak (common fault). System has been tested and all components including the hydraulic actuator assembly, electric pump motor, solenoid valve block assembly, pressure switch, and relays are functional. Unit is clean (as pictured), no signs of master cylinder bore wear or internal leakage.

　　The Anti-lock Braking System (ABS) as we early model owners know, is a sometimes exasperating system which is very expensive to have a dealer fix. Unfortunately, it is also a critical sub-system since if it goes bad, more than likely the braking performance will be severely impaired. There are though a few relatively common things which can be checked or repaired on a DIY basis that can save some big bucks. Obviously though the scope of this article must be somewhat limited since the FORD Shop Manual contains over 100 pages of information on this system and it’s troubleshooting.

　　ABS was initially developed for aircraft applications and was toyed with periodically in the 50’s and 70’s in the automotive arena.

　　The system equipped on our SC’s is the TEVES Mark II ABS System. It was originally designed and manufactured by the Brake & Chassis Division of ITT Automotive which was based in White Plains, NY. On September 28, 1998 the division was acquired by Continental AG of Hanover Germany. The name of the newly combined company is Continental Teves AG & Co. The Germans must have liked what they saw since they paid US$1.93 Billion.

　　The TEVES Mark II ABS System has been equipped on many different cars of the 80’s Included in the list is the Pontiac 6000 STE and 88-90 Riviera and Reatta. The system also appeared on some SAAB, Mercedes-Benz, Jaguar, Alfa-Romero, and Lincoln Town Cars. Unfortunately for us though, ABS was usually installed as an option, a very expensive one at that so the number of car equipped with "our" system is rather limited when compared to more widely used systems like the TEVES Mark IV which the 93 and up SC’s came standard with. It does open up the chance though that there may be alternatives to FORD to purchasing some replacement parts. It appears though that there are minor differences in the design of each different car’s systems. Substitution should be done only after careful examination and comparison of the parts in question.

　　The main difference between the TEVES Mark II and Mark IV systems is that the Mark II is an integrated ABS System as opposed to the non-integrated system of the Mark IV. What that means to us is that our system contains all the controlling hydraulic components into one unit called the Hydraulic Actuator Assembly. This includes the Hydraulic Power Booster, master cylinder, pump and motor, valve assembly, and accumulator. On the Mark IV system the ABS system is basically piggy backed onto a conventional brake system to add ABS functionality to it.

　　The Teves MKII system was used on too numerous vehicles to list, including Ferrari, Ford, GM, Pontiac, SAAB, Mercedes, Jaguar, Alfa-Romero, and Lincoln.

　　The unit itself is hard to find and extremely rare.

　　System was removed from a 1990 Seville.

　　Included with the unit are prints from the Haynes ABS Manual which include bleeding procedure and diagnostics, as well as where to acquire an accumulator (they are not expensive).