Question about 1994 Oldsmobile Bravada

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Is there a inursha switch on the 1994 bravada? we bought the truck used and on the way home it died and we cannot restart it. we are trying to remove the fuel tank to replace the fuel pump but the bolts are rusted. however we wondered if this model had an inursha switch that may have triggered on a bumpy road or something... that we might be able to reset to start the truck.

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  • kimmyanne187 Jun 25, 2009

    thank you for your help. we already changed the relay switch. we were just hoping that maybe it was a simple switch

    but thanks any way..

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  • Oldsmobile Master
  • 3,854 Answers

NO switch, but there is a relay under the hood just to the passenger side of the brake booster along the firewall. Check the relay and the fuse under the dash, drivers side. Change the fuel filter if you can hear the fuel pump prime the system for the first 3 seconds when the ignition is placed to the run position. The fuel pressure too should be 60psi to 65psi during prime with the engine not running, you should check that at the shredder valve. The good news is the fuel pump on your 94 is less expensive then the 95's and newer. Good luck and hope this helps. 

Posted on Jun 25, 2009

  • Harvey N Tawatao
    Harvey N Tawatao Jun 25, 2009

    There is a wire harness that runs from the frame to the gas tank that get's corrode and may have gone bad. It's on the driver's side, you can un-clip the connection and test it for power, the other thing to is to check the fuel pressure at the shredder valve to make sure you have 60psi to 65psi. Any other readings will give you a no start. If the fuel pressure is good then check the Ignition control module (ICM) which is in the distributor under the rotor, it cost around $40.00 and Auto ZOne will have the step by step instructions to replacing it in about 30 min. Keep me posted, just trying to keep you from dropping the gas tank for another problem then the fuel pump. 

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