4KQ fool pump and brake MC

[Kneale Brownson]

A signal from the tach activates the fuel pump relay?  I thought it used to turn on as soon as the key was turned on.
   
  Brake pedal gets a firm spot, but real close to the floor.  I'll try another bloodletting, er, um, bleeding.

Huw Powell <audi at humanspeakers.com> wrote:
  
> Fuel pump on milady's 4kq camping car won't run unless I jumper the
> two big spaces in the relay tray. Then it runs fine. Put the relay
> back in and it won't run. Is the pump drawing so much juice the
> relay won't pass it on or is the relay just toast? Car has been
> sitting a month or more.

The relay is probably bad, it would be nice to test with a known good 
spare, though. If somehow the tach signal is not getting to it, it 
would not "turn on".

> Brakes work OK, but used to be really effective and didn't take a lot
> of pedal to operate. Today the pedal almost hits the floor.
> Reservoir is at "Max" like it has been since I flushed the system
> last summer. Did the MC maybe burp and lose some of its seal? Do I
> need new?

Is the pedal firm eventually, or does it sink under pressure? A sinking 
pedal with no leaks tends to indicate a bad master. A soft pedal that 
reaches a firm point tends to indicate air in the system, although how 
it could get there without lines being opened recently would be a mystery.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/