Quote:
Originally Posted by haymitch
Reading between the engine block and -ve terminal of battery was - 0.02V with the engine running, is this the kind of low voltage that would indicate a bad ground ?
I tested the brake servo using your method and the pedal sank quickly - the engine was not harder to start.
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Going from the engine block to the battery -ve tests everything in between, the voltage drop of 20mV (0.020V) is negligible and perfectly acceptable. In fact, i designed an electronic ammeter around this very fact, on the car i designed it for, at 70A discharge, there was a 70mV drop in the battery to fusebox lead which made my life easy for designing the circuit.
Anyway, i digress! When you tested the servo, how many pumps of the pedal did it take when you switched the engine off before the pedal went hard?