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Thread: What caused my pump to burn up?

  1. #1

    Default What caused my pump to burn up?

    Holley Red Pump - about 3 years old with about 10k miles. Mounted to the frame below the fuel tank, fuel filter installed before the pump, and is clean. Good ground. What could have caused this to happen? Don't want to have this happen again.

    Last edited by RanchGX; 01-10-2015 at 01:12 PM.

  2. #2
    Join Date
    Nov 2014
    Ont. Canada


    Looks like heat to me.
    Did you have a 10 gauge wire powering the pump? Low volts will cause the pump to work harder. Use a relay and take the power for the pump off the altternator where the volts are the highest. Too much restriction before the pump will also cause it to get hot.

  3. #3
    Join Date
    Dec 2009


    Quote Originally Posted by RanchGX View Post
    What could have caused this to happen? Don't want to have this happen again.
    Looks like the wiring overheated from voltage drop, causing the amperage draw to increase. Ensure you're using at least 10 AWG wire to the pump for +12V & ground. Also, ensure the pump is receiving 13.5+ (charging system) voltage and a good ground (full continuity).

    81 TransAm, I was typing the same time as you.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

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