Is it good or bad luck I am having?
About the same time I discovered that leaking coolant hose I mentioned in this post, I noticed that my coolant temp gauge was not working – no needle movement nor did the warning LED flash upon start-up. I had been mucking around with the cluster a fair bit and I thought that I had either broken the circuit foil or had a bad connection at T14. But examining the dash did not reveal any problems. I finally tracked it down to a bad connection at the female spade connection to the temp sender back on the thermostat housing. The insulation on the wire was very brittle for about 2″ up from the spade, and the connector itself felt a little limp on the wire. It has been worked on before, that is not a stock spade connector.
The copper was corroded, and you can see the discoloured insulation which pretty well corresponds to the brittle section.
I cut back the wire to where it was flexible and spliced in a new length, plus a new spade connector (section of plastic insulation was cut out to allow the spade to slip on the temp sender).
Here is the brilliant location of the temp sender, exposed to heat and road splash.
And the new connection made.
So after that I was mucking around looking at things in the engine compartment, engine running, when I pushed on the hose that runs from the upper coolant crossover tube to the narrow steel tube that runs around 3 sides of the engine compartment. The hose split and coolant rapidly spat out. Yes, that is steam in the picture.
Te previous owner had used fuel line hose, and it was hard and brittle.
I had some spare hose to make the repair, and I think my van is really trying to tell me to go over all of the hoses and replace. I got the message with the previous leak, but nothing like another nudge in the ribs.