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How to release fuel pressure to replace fuel filter on a buick rendevouz 2004

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If you open up the hood and find your fuel rail you should see a little cap just like what is on your tire valve stems. take the cap off and push the little valve in the center agian just like the valve stem on your tire. be vary carefull as fuel will spray out of this. that is how to depressurize the fuel system

Posted on Jul 29, 2009

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3.4 ENGINES YOU OPEN GAS CAP.YOU NEED A FUEL PRESSURE GAUGE WITH A BLEEDER HOSE.WHAT YOU DO IS LOCATE SCHRADER VALVE.CONNECT FUEL PRESSURE GAUGE TO SCHRADER PLACE BLEEDER HOSE IN A EMPTY CONTAINER TO CATCH FUEL.BESURE TO USE RAGS TO CATCH FUEL SPILL.WHEN YOU CONNECT FUEL PRESSURE GAUGE. NOW THE 3.6L ENGINES.REMOVE FUEL PUMP FUSE.AND LOOSEN FUEL CAP.CRANK UP CAR.LET IT RUN OUT OF GAS.THEN LOCATE FUEL PRESSURE TEST PORT THE SCHRADER VALVE.REMOVE CAP.USE RAGS TO CATCH FUEL.YOU TAKE A SMALL SCREW DRIVER. PRESS SCHRADER VALVE.THEN PLACE CAP ON SCHRADER VALVE.THEN TIGHTEN GAS CAP BACK UP THEN REMOVE FUEL FILTER.

Posted on Jul 29, 2009

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Posted on Jan 02, 2017

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Glad I looked at the filter before answering this.
There are clips inside each fuel line you have to release.
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You push the tool into the line to release the clips. Be careful since the fuel is under pressure. Disable the pump by pulling the fuse or pump relay and cranking the engine before you start on the filter.

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1 Answer

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