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What would cause it to overheat? The end cap melted around the brushes, and they are locked in.
Racetronix RFPK-001 - F99 Fuel Pump Kit HP 1999-2000 RXP255
1) Original Fuel Pump 05-08-2000 to 01-04-2015 @ 169,000 miles 14 years, 7 months
2) Racetronix Fuel Pump 01-04-2015 to 06-28-2024 @ 196,700 miles = 27,700 miles 9 years, 5 months
3) ACDelco MU1730 - Fuel Pump 07-05-2024 @ 196,700 miles
How often do you have less than 1/4 tank of gas? The in-tank components use the gas as a cooling agent, if the level drops too much it can cause heating issues, if done frequently it may lead to heat damage. Only other thought would be wiring to a source sending too much current over its specs.
This is all assuming the QA at Racetronix is pulling enough samples and has a variance narrow enough to keep bad units from slipping through to the marketplace.
I would definitely call them to see what they have to say about that. When I first got my car running I had a pump dead out of the box. I got a replacement and they've both been good ever since
I usually fill up before I get down to a quarter tank. I do remember one time the low fuel warning light came on, but that was with the original pump. I swapped out the original pump at 169k miles as I heard that the F-Body pumps were crapping out around 170 to 190k miles and I didn't want to get stranded somewhere.
This is the second time that I had to get towed home with the Racetronix. The first time, about a year after I installed it, I stopped at a gas station, filled up, and it wouldn't start back up. It was at a busy intersection, so I couldn't hear the pump prime, so I checked the fuses, and they all looked good. I depressed the Schrader valve on the fuel rail and gas sprayed out, so I then focused on the ignition, checked the fuses. They all looked good, swapped relays and no change, towed home.
Later that night, I thought that when I depressed the Schrader valve earlier maybe the fuel sprayed out because of pressure caused by heat. So i depressed the Schrader valve again. Nothing. I turned on the ignition and didn't hear the pump prime. I pulled the fuses and checked them with an ohm meter. The fuse in the Hotwire harness was bad even though it looked good. I put a new fuse in, and it was good until now.
I'm pretty familiar with this fuel system. Racetronix has a good description of its function in the link below. I guess I should also add that I'm the original owner and I don't think I'm doing anything differently that caused the failure. I also checked the bucket when I removed it. It had fuel in it, and it didn't leak out of the bucket when I removed it from the tank.
So the only thing I see is the end cap melted, which seized up the brushes, and with some wear, it eventually lost contact with the commutator = dead fuel pump.
I usually fill up before I get down to a quarter tank. I do remember one time the low fuel warning light came on, but that was with the original pump. I swapped out the original pump at 169k miles as I heard that the F-Body pumps were crapping out around 170 to 190k miles and I didn't want to get stranded somewhere.
This is the second time that I had to get towed home with the Racetronix. The first time, about a year after I installed it, I stopped at a gas station, filled up, and it wouldn't start back up. It was at a busy intersection, so I couldn't hear the pump prime, so I checked the fuses, and they all looked good. I depressed the Schrader valve on the fuel rail and gas sprayed out, so I then focused on the ignition, checked the fuses. They all looked good, swapped relays and no change, towed home.
Later that night, I thought that when I depressed the Schrader valve earlier maybe the fuel sprayed out because of pressure caused by heat. So i depressed the Schrader valve again. Nothing. I turned on the ignition and didn't hear the pump prime. I pulled the fuses and checked them with an ohm meter. The fuse in the Hotwire harness was bad even though it looked good. I put a new fuse in, and it was good until now.
I'm pretty familiar with this fuel system. Racetronix has a good description of its function in the link below. I guess I should also add that I'm the original owner and I don't think I'm doing anything differently that caused the failure. I also checked the bucket when I removed it. It had fuel in it, and it didn't leak out of the bucket when I removed it from the tank.
So the only thing I see is the end cap melted, which seized up the brushes, and with some wear, it eventually lost contact with the commutator = dead fuel pump.
Don't be putting too much faith in Racetronix wiring, I had their entire dual pump harness and it just flat out didn't work at all. Wire everything up yourself
07-08-2024, 04:04 PM
Racetronix Fuel Pump Failure 
