Another FP relay bites the dust
#1
Another FP relay bites the dust
1989 740 GL. Well this relay only lasted 6 months so it looks like I'll need to up my spend on a better brand. Also it seems that they all fail at the pin 30 where you can see the dark burn spot on the relay. Looking at the solder joints in the PCB doesn't show any cracks so I bet something opens as it heats up. Also pin 30 seems to be the frame ground of the relay coils so I assume the ECU is switching grounds. So I just plugged in another spare and off we go. Will order another part today .
#4
As for the brand of the relay it doesn't have a name on it and I suspect it might be one of those $10 Chinese units.
#6
Already put in a new relay. I have 3 more left in my parts bin. Also I have a new pump and filter so being it only takes about an hour to do and it's going to rain again tomorrow it will give me something to do.
#7
OK changed the main pump and filter today. Looked up my records and saw I replaced the pump at 200K miles and the filter at 300K miles. Now have 373K on the car. I must have been cheap because the FP I took out didn't have a brand or part number. Also it had a different wiring set up but I did it without screwing up the OEM connectors. The old pump was always a little loud and I could hear the initial 5 sec hum at start. The new Bosch pump is so quiet I had to get my stethoscope to listen if it was running. So big difference in quality I guess. OK now I'll track the FPR and see if it burns up.
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