1970 Mark III Brake Questions & Update

Hi Bill,
Questions for you, 1 – What would make a humming/ vibrating sound from drivers front brake when starting off from a start going about 10-15 miles per hr when the noise appears I step on the brake and it stops and I let go and starts again but not all the time. All new brakes and calipers there was 2 clips on back of caliper top and bottom I couldn’t put one of them back on because the hole was broken so I only put one on? I just put her on the road for second time and it just started, probably 40 miles on the brakes .sometimes when I hit a nice bump I hear it for a split second? 2- I put a fuel sending unit in w/low fuel warning it was working fine until now when I start the car I see the warning come on briefly and goes out the car starts. I haven’t check voltage yet one wire should have no power, one should have constant power and one blinking. If I have all of these were should I go from there? would it be the sending unit even though its new?
Part two:
Hi Bill, just a little up date the sound is more like a low air horn vibrating humming noise. Now that I’m thinking about this would it be the brake booster?
Part three:
Sorry for so many emails failed to mention I have a new master cycllnder from cardone and I see some seepage where the master cycl. meets the booster and the sure brake plug is disconnected from solenoid. Trying to give you as much info as I can. It seems to happen when I drive it more and is hot from driving.
Phil
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Phil –
You have a strange noise in your brakes after you yourself has admitted to omitting the installation of a necessary part. I have no idea what this noise is but it sounds to me at first glance that you have answered your own question. Have you thought about repairing the missing brake clip part so that it can work as designed.
As far as answering your fuel gauge comment and question I don’t understand it at all. What exactly is wrong with your gauge.
Sincerely,
Bill
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Bill –
Gauge is not registering, the clip I don’t think is the problem. A mechanic thinks it is the booster, white blue smoke coming out on start up when that didn’t happen before. He thinks the diaphram is bad, making the fog horn sound along with sucking brake fluid in the vacuum giving it a rough idle and sometimes runs like s**t what do you think?
Phil
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Phil –
So, as I understand it your fuel gauge needle on the dash is not moving at all after it was working fine for a period of time with the new sending unit. The new sending unit may have failed or the float may have detached or developed a leak and become saturated with fuel. In any case the issue must be correctly Diagnosed with the use of the Shop Manual for reference. A good place to start this diagnosis would be at the fuel tank plug at the sending unit.
As for your brake noise problem you have been very confusing to say the least. In your first post you did explain clearly that you had a noise from the left front brake assembly. I replied to you according to the information that you supplied to the best of my knowledge. Your latest email indicates that this left front brake noise has somehow now seemed to have evolved to a fog horn sound at the brake booster along with leaks and white blue smoke from somewhere. Please keep us posted and let us know what you eventually find what your problem was.
Sincerely,
Bill