Topaz (Tempo) fuel pump mystery - harness yanked?

Are you getting power at the fuel pump?

"Oscar_Lives" wrote

Turn key. Nothing no fuel pump sound. Dead. I also looked for a reset button and took the trunk left side off and upper upholstery and could not find it BUT right now until I can identify this disconnected harness connector is suspect this may be related as there are no sensors under the back seat for seatbelts, etc.

Thanks for a reply. Just trying to help and 83 year old lady.

Mark

Also.

This car ran perfectly into the yard. Would not start the next day. I absolutely hear NO fuel pump activity turning the key. The car has only 55K miles on it 1990 Topaz and previously one of the best running/starting older cars I have ever seen - ran perfect.

Mark

"Mark" wrote

What year is it? Autozone's online manual says (for replacing the pump) you have to drop the tank part way, then unplug the harness, then drop it the rest of the way, so I doubt that's it. Can you make out the colors of the wires?

Or she got home all mad and slammed the trunk hard enough to trip it? (Just covering all bases here). :-)

Maybe it's on the other side? My Thunderbird has on the rear panel, right beside the left taillight, hidden behind the fuzzy plastic panel.

Autozone's diagrams show inertia switches for all Tempo/Topaz models (different place in the wiring for USA vs Canadian models), but strangely they don't have anything listed in the "shopping" section of the site.

"MasterBlaster" the

Very well could not be. I don't have the car here so I can't say the wiring colors. There is like 3 feet loose of wiring with a wiring fastener threaded appearing every foot or so to go into a corresponding body-hole to secure this. The back of this is going *backward* toward the tank. I thought the back of it might go to the inertia switch and might have been pulled from it. AND with the 3 body fasteners AND IF it went to the fuel pump, this would normally not be considered a routine removable wire. With removing the fuel tank and "dropping the rest of the way" - the tank has to be removed anyway SO IF this was a normally removable wire to a harness - it would still be easier to remove the harness from the pump as it is lowered since it is coming down anyway in that repair. So I am not totally convinced from that writing alone.

Amazing insight! I never thought of this and this could have happened IF it turns out to be the inertia switch.

Possibly. I took the left panel out and across piece panel looking behind the foam with a flashlight. Someone wrote on one Ford (perhaps not likely with this car) there was a quarter (coin) size hole with a button on the rear seat metal in the trunk (not Topaz) - I do not believe I looked for all holes if it turns out to be a hole (I think I read this about Cougar)

I will be looking at the car later today. Any updates or fixes i will post for anyone following the thread.

Mark

"MasterBlaster"