Did your unfortunate friend have the overheating mishap right AFTER "some of his dashboard instruments had failed" ? As in, the first longish drive after the instruments mysteriously threw in the blanket?

I'm under the strong impression it is so, and I have a tiny idea about what happened...

When fitting the electric pump, your friend tapped into the wiring harness at a place not dimentioned for the extra load. From your posting it is even possible that he did NOT put a relay in this circuit. If both the instruments fail, it is because they're no longer being fed with power. Three things can cause this:
- Fuse no 4 blown. This one also feeds the wipers.
- Ignition-relay blown. This one shuts down the wipers, the fan and window demist.
- The wire somewhere in this circuit is torn or burnt off.

All these things can happen if you overload this circuit. As in, fitting a heavy power consumer in this circuit. Such as an electric waterpump...

So this circuit shuts down. Then the pump stops. The car can still be driven shorter distances without the driver noticing anything wrong. The temp gauge is off duty, remember? No water-circulation means the heater will stay cold. Since your friend lives in Australia, I doubt if he tried to use it. I've been told the clima there is quite the opposite of what we in butt-freezing Scandinavia have.
Anyway, the car can be driven for quite some time if it's only for shorter commutings. But when you go for a longish trip the "heat is on" ...

Makes sense?
Karl.

posted by 130.67.1...

• 99 water pump failure and EWP replacement questions, Rowan, Wed, 13 Feb 2002 13:29:26
  • Re: 99 water pump failure and EWP replacement questions, Owen, Mon, 18 Feb 2002 01:05:48
    • Re: 99 water pump ... I did the Davies craig too, jeff, Thu, 21 Feb 2002 02:37:05
  • Re: 99 water pump failure and EWP replacement questions, Johnson , Thu, 14 Feb 2002 15:31:54
    • Re: 99 water pump failure and EWP replacement questions, Mikael H., Thu, 14 Feb 2002 22:51:07
    • Re: 99 water pump failure and EWP replacement questions, JohnT , Thu, 14 Feb 2002 17:45:35
  • Re: 99 water pump failure and EWP replacement questions, Andy in PDX OR, Thu, 14 Feb 2002 04:15:48
    • I know this one..., Karl.no, Sat, 16 Feb 2002 12:18:36 <-- Viewing This Message
      • Not much distance without the electric pump >>, BobD, Mon, 18 Feb 2002 00:31:28
  • Re: 99 water pump failure and EWP replacement questions, Perry, Thu, 14 Feb 2002 01:36:56
  • In your area? Which is ? n/m, BobD, Wed, 13 Feb 2002 23:25:30
    • Last I knew, Rowan was in southern MD with the Navy, Andy in PDX, Thu, 14 Feb 2002 04:20:34
      • Re: Last I knew, Rowan was in southern MD with the Navy, Rowan, Thu, 14 Feb 2002 11:41:43

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