WebJul 25, 2010 · Measured a Trailblazer SS 21" 10 blade fan in place with the hood closed. Used MPH of air speed over the stack and averaged it out. Depending on RPM it was under CFM of electric fans (idle) and then went slightly over 10,000 CFM. Ear protection is recommended at higher test RPM's. WebPrimary electric fans (pullers) are designed to mount behind the radiator and replace a factory belt-driven fan. These improve the horsepower and torque delivered to the wheels by eliminating the parasitic drag of the stock belt-driven fan. Electric fans also allow quicker warm ups and cool downs, longer water pump life, less fan noise ...
99 Sierra electric fan conversion problem - HPTuners
WebDec 1, 2024 · Do you have electric cooling fan on 2006 burb? If you do, try to find a electrical schematics for engine cooling and we'll try to troubleshoot. The fan low and high speeds are controlled by the PCM thru the low and high speed relay coils that are constantly fed with 12V + and through the PCM ground. WebThe GM OEM e-fan fits the larger 34" radiator. If you're unsure, compare your truck's radiator to another truck that was equipped with OEM e-fans. Our e-fan harness is PnP for GM Trucks 99-06 (07) GMT800. PCM … motorhead cross
Mechanical vs. Electric Fans: Which is Best for Your …
WebElectric Fan Conversion 99-04 Sierra/Silverado (1080p HD) We are nearly done with the Electric fan conversion, all we have left to do is tune and enable them! After the tune … WebOct 16, 2006 · Simply push it through pin 42 until it secures itself. Pull on the blue wire to ensure it is secure. Reinstall the blue-clear cover and grey retaining cover on the PCM connector. Reinstall the PCM connector. 6. Locate the LS1 fan connectors on the fan harness, install them and connect to the fans. Be sure to secure the wires with tie straps. WebJul 12, 2024 · This is a step by step tutorial on how to upgrade any 99-02 GMT800 truck or SUV to the 05-06 GMT800 electric cooling fans. This same setup can be used on 03-04 trucks as well, however the only difference is the wiring that connects to the PCM. motorhead cycling jersey