Question about 1998 Oldsmobile Bravada

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Fuel pressure ?

What is fuel pressure on 1998 olds bravada

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You got a 4.3 liter vortex it 60psi give or take a few lbs thanks pierre p.s

Posted on Feb 01, 2009

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Does anyone have any suggestions on why my 1998 Olds Bravada wont start


Check your coil on plug if dtill functional, also plugs themselves.

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Check for correct fuel pressure. Connect pressure guage to schrader valve on fuel rail. Turn key to ON position without starting engine. Fuel pressure should be between 55 and 61 PSI. If it is too low, replace fuel pump in tank and fuel filter.

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1998 bravada not getting fuel to the throttle body, fuel pump is working fine. what else could it be?


If you have a throttle body, then you most likely have to injectors inside the throttle body. Check to make sure that they are funtioning correctly. You can check by using a voltometer and testing the injectors' lead wires for an electric signal, there should be one. Also, check to make sure your fuel filter is not completely stopped up, it happens. Also, sometimes the fuel pump can turn, but not put out enough pressure to start the car. There is also a fuel pressure regulator on many late model vehicles that can malfunction. I would check that as well.

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Bad TPS will give you a SES light. Possible low fuel pressure from bad fuel pump. Put a fuel pressure gauge on the service port close to the firewall, should stay above 50 psi when juicing the gas. Only use OEM parts on a Bravada! Try "thepartsladi" store on eBay.

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Take a rubber hammer beat on the fuel tank if it starts it is the fuel . My bravada did the same thing and it was the fuel pump in the tank

Jan 20, 2009 | 1998 Oldsmobile Bravada

1 Answer

98 olds bravada


If the relay is pulled, the fuel pump should not be running. If the mechanic is right, there is a short and your pump is getting electricity from somewhere it shouldn't. If that's not the case, the mechanic could be wrong. Post what the original problem was as a comment please.

Dec 31, 2008 | 1998 Oldsmobile Bravada

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