i am installing a fuel pump in my 2003 chevy blazer an am looking for the easiest way to drop the gas tank.


Asked by Jul 25, 2015 at 09:13 PM about the 2003 Chevrolet Blazer 4 Door LS

Question type: Maintenance & Repair

1 Answer

Kelly Mayo

TAKE THE GAS OUT...LET IT DOWN.. HAVE A FRIEND TO HELP? OR A JACK AND A FOOT OR MORE SQ PIECE OF WOOD... >Park the vehicle in a place where you’ll have plenty of room to work. If you have access to a lift, that would be great. Relieve any fuel pressure by removing the fuel cap. Disconnect the negative battery terminal. Pre soaking any required bolts/nuts with WD-40 prior to the job will help also. There are 3 lines and 2 electrical connectors to be removed from the fuel pump, and the filler and vent hoses that need to be removed from the back of the tank. There was also a small hose on the front part of the tank that needs to be removed, but we didn’t see it until we actually started lowering the tank. Just remember where everything hooks back up. Label the lines, if needed take picture with your cell phone. Start by removing the skid plate, Once the skid plate is off, you’ll have access to the straps that hold the fuel tank on. The forward ******** the Blazer will pretty be rusted and not very stout. It's basically formed as a strap that ended in a threaded bolt and in most will end up breaking trying to remove it. Supported the tank with a floor jack with a transmission removal assembly on it. You easily fixed the broken strap problem by welding a bolt to the strap. Once all the straps were loose, lower the tank just enough to get better access to the lines and connectors leading to the fuel pump. There is not much room to get in there on a Blazer. Once the tank is off, it’s a good time to look around in that area to see if there are any other problems that may need to be addressed. If you are going to replace the fuel pump here's how to do it. Before removing the fuel pump, be sure to clean off all the junk that has collected around it. Replacing the float and sending unit is fairly simple. Just pay attention to how the old parts are removed, and install the new parts in reverse order. Be sure to get the wiring routed correctly and install the new seal that comes with the kit. The sock filter on the bottom of the pump was just a little bit clogged, so we made a trip to the auto parts store to get a new one. Luckily they had one that would match up. While we had the tank off, siphoned what fuel was in there and cleaned out the tank really well.

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