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Cruise loses speed 700 1985

Suggestion: check the system for vacuum leaks before delving into more complicated diagnostics. Vacuum line runs from the servo to a t-piece, one leg goes to the pump (on the strut tower) and the other to the pedal switch(es). For an automatic that's one switch, for a manual 2 and another T-piece. Plenty of opportunity for something to start leaking or crack.

For the indicators, I'd say the relay sometimes fails to operate correctly. Grab another one from the pick'n'pull to try.

Bram






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