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Re: [T3] fuel pump relay failure?


> On a manual tranny '70 there are 2 red wires going to the relay (in addition to 
> the 2 in the plastic plug), but there are 3 terminals on the relay.

The fuel pump relays in both our cars 
have 5 leads. The blue/yellow and grey, which were both in the plastic casing before I 
freed 
them to fit the newer production Bosch relay [test subject from my car]. The heavier 
gauge [unless that is my imagination] red lead that supplies voltage all the time, and 
then 2 more red leads that share the common connection. At least this is how I set about 
hooking it up; does that sound correct or could it be contributing to the problem? That 
layout functions correctly on my car.. The wires in his were there already [and hooked up 
in the same manner], though now to think of it, I didn't bother to glance at the VIN, so 
1970 is on the sellers word..

While we were troubleshooting the car from a 'dead, will not start, and no pump' state, 
you could hear the first click, at which point the pump should have started, but the 
second click was nonexistent. Once in the key on state, we stuck a jumper from pin 30 to 
87 of the fuel pump relay and that got the car home.

Does that sound like relays, or are we fishing for red herrings?

Curtis

http://binauralaboratories.net



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