Melted Fuel Pump Relay Harness
10-18-2008, 01:36 PM
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Car: 1989 GTA
Engine: 5.0 TPI
Transmission: T-5 WC
Axle/Gears: Yukon 3.73
Melted Fuel Pump Relay Harness
So my car would not start and I got it towed to my mechanic. We found the plastic harness that clips into the fuel pump relay was melted. A few years ago I installed a 255 lph BBK fuel pump. The mechanic thinks this may be drawing more amps and melted the plastic harness. We are going to install a new relay and clean up the wiring harness and monitor the condition. It may new a stronger relay. Has anyone experienced such a problem maybe due to a stronger fuel pump?
10-18-2008, 02:52 PM
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Car: 1989 GTA
Engine: 5.0 TPI
Transmission: T-5 WC
Axle/Gears: Yukon 3.73
Re: Melted Fuel Pump Relay Harness
Quick update to this post. We installed a new fuel pump relay and I just ordered a new wiring harness from TPI Parts. The car starts fine now. I will monitor this to determine if I need a stronger relay by feeling the relay to see if it gets hot. The mechanic also stated a loose connection could have caused this problem.
10-18-2008, 02:54 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Melted Fuel Pump Relay Harness
It's not completely unheard-of, even with stock pumps.
01-06-2009, 06:53 PM
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Car: 1989 GTA
Engine: 5.0 TPI
Transmission: T-5 WC
Axle/Gears: Yukon 3.73
Re: Melted Fuel Pump Relay Harness
See the following part:
http://tpiparts.net/inc/sdetail/4571
TPI parts have various other wiring harnesses and connectors as well.
http://tpiparts.net/inc/sdetail/4571
TPI parts have various other wiring harnesses and connectors as well.
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