Question about 1998 Oldsmobile Bravada

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Does a 1998 olds bravada have an fuel shutoff switch?

No pressure at fuel rail turns over but won't start

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  • Oldsmobile Master
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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: 1998 olds bravada 4.3 v6

there is a fuel pressure regulator on the back of your injectors, change it, its a 13 dollar part, after you do that, buy a fuel pressure guage, hook up the pressure guage, turn the key to on possition, prime the like a couple times like you would do with a new pump, check the pressure it should be any where from 58 LBS to 62 lbs of pressure in the like, if its any lower the 58, you need to change your pump, with out 58 lbs of pressure the injectors dont get the correct pressure in each purge, hence the crank with no start.. you seem to know enought about pressure n stuff like that so u should get it

Posted on Mar 26, 2009

garyq1970
  • 81 Answers

SOURCE: fuel pump 1998 olds bravada

  1. Properly drain the fuel tank, then disconnect the negative battery cable.
  2. If not done already, raise and support the rear of the truck safely using jackstands.
  3. If equipped on late-model vehicles, loosen and remove the tank plastic shield.
  4. Loosen the retaining clamp and disconnect the tank filler hose from the tank neck.
If fuel and vapor hoses or pump/sending unit wiring can be accessed at this time, they may be tagged and disconnected. If not, wait for the retaining straps to be loosened and lower the tank slightly for access.
  1. Tag and disconnect and accessible wiring or hoses from the top of the fuel tank.
  2. Have and assistant support the fuel tank, then remove the fuel tank-to-vehicle straps and, if equipped, the isolation strips. If no assistant is available, position a floor jack to support the tank while the straps are removed.
  3. Lower the tank slightly, then remove the sending unit or sending unit/pump wires, hoses and ground strap. Be sure to label all connections to ease installation.
  4. Carefully lower the fuel tank from the vehicle and store in a safe place.
To install:
  1. Raise the tank partially into position in the vehicle. If you are working without an assistant, you may wish to loosely install one of the retaining straps and use a floor jack to support the tank at an angle so there is access to the sending unit or sending unit/pump assembly (as applicable).
  2. Connect the fuel/vapor hoses and wiring to the top of the fuel tank, as tagged during removal.
  3. Carefully raise the fuel tank so it is fully into position and loosely secure the retaining straps. Make sure the wires and hoses are not pinched or damaged when raising the tank. Also, be sure that the isolation strips (if used) are positioned between the retaining straps and the fuel tank.
  4. It may be easier to connect the fuel filler hose to the tank neck at this time. If desired, connect the hose and secure the clamp.
  5. Tighten the fuel tank retaining strap fasteners to specification. Tighten the strap nuts to 33 ft. lbs. (45 Nm).
  6. If not done earlier, connect the tank filler hose to the tank neck and secure using the clamp.
  7. If equipped, install and secure the tank plastic shield.
  8. Remove the jackstands and carefully lower the rear of the truck.
  9. Refill the fuel tank and install the filler cap, then check for leaks.
  10. Connect the negative battery cable.
Equipped With Shield Package
  1. Properly drain the fuel tank, then disconnect the negative battery cable.
  2. Raise and support the rear of the truck safely using jackstands.
  3. Remove the shield forward support and bracket.
  4. While supporting the shield and tank assembly with the help of both an assistant and a floor jack, remove the remaining bolts holding the assembly to the frame, then lower it sufficiently for access to the hoses and wires.
  5. Tag and disengage the hoses and wires from the sending unit assembly.
  6. Carefully lower the fuel tank and shield from the vehicle, then if necessary for service or replacement, separate the tank from the shield.
To install:
  1. If separated, install the tank to the shield.
  2. Carefully raise the tank and shield assembly partially into position with the help of an assistant and a floor jack.
  3. Connect the wiring and hoses to the sending unit assembly, as tagged during removal.
  4. Raise the tank and shield assembly fully into position, then secure to the frame using the lower retaining bolts.
  5. Install the shield forward support bracket.
  6. Remove the jackstands and carefully lower the rear of the truck.
  7. Refill the fuel tank and install the filler cap, then check for leaks.
  8. Connect the negative battery cable.
  any question I can send some diagrams

Posted on Nov 12, 2008

  • 57 Answers

SOURCE: Where is the fuel pressure regulator located at in a 94 bravada

My friend, I suggest you go by your local Auto Parts Store and purchase a Haynes Repair Manual on this vehicle. There are many sensors and electronic controls involved with this engine as I'm sure you already know. Any one of these can memic something that "it is not".
If your problem is the Pressure Regulator, it is located inside the "Tunnel Ram" intake manifold along with the multiport fuel injection system.
Now,,, before I went through the trouble and expense of going into the Intake Manifold, I would run the EMC in Diagnostic Mode and see if there are any codes present.

Posted on Feb 06, 2009

  • 77 Answers

SOURCE: fuel pressure regulator

Regulator is under plastic intake plenum.

Posted on May 04, 2009

  • 41 Answers

SOURCE: 99 olds bravada. just replaced fuel pump 2 weeks

Aftermarket fuel pump failure? Try "thepartsladi" store on eBay for low price GM OEM parts. Could also be wiring harness to fuel pump.

Posted on Feb 06, 2010

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


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Won't start,has spark, has fuel


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Fuel filter location olds bravada


he fuel filter is located along the driver side frame rail...

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Sep 17, 2011 | 1998 Oldsmobile Bravada

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I replaced the battery the 98 ford expedition still won't start it will crank but will not turn over


If it is fuel injected check for fuel pressure at the fuel rails. If it has a carburetor then try pouring a little gas in the carburetor and see if it will start. If you have no pressure at the fuel rails or the motor starts after adding fuel directly then the problem is the fuel pump.

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Hello. My 1997 Chevy Tahoe refuses to start. The problems began with a bad fuel pump. I changed. It worked. The fuel pump died again. I changed it again and it has been working. I parked it for two weeks....


Now you have a good battery & a starter that turns over the motor

Have you cycled the key on & off with a fuel pressure gauge on the
fuel rail?

Do you have a fuel filter that isn't over 3 or 4 years old?

Have you checked for spark while cranking ? Use an old plug on the wires,
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If you removed the ducting & MAF Sensor it won't start

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My 1998 Olds Bravada has the key stuck in the ignition. I paid to have a new ignition key cylinder put in, but the new one does the same thing. The key will start the car etc. but won't come out of...


I know in the newer versions of the Bravada, Trailblazers, Envoys, the ignition switch itself is always the culprit. Not the switch the key goes in, but it's located under the steering wheel column. I know how to replace the newer ones but not yours. That's the first place I'd look.

Jun 07, 2011 | 1998 Oldsmobile Bravada

1 Answer

1998 Ford Windstar Minivan: 1. I sometimes get an extended crank when trying to start engine after I've made a short trip. 2. My interior lights won't go out after I turn the engine off, so I...


YOU MAY HAVE A BAD DOOR AJAR SWITCH. HOWEVER, YO HAVE A TIMER THAT SHUTS OFF THE INTERIOR LIGHTS AFTER 300 MINUTES. IT'S CALLED A BATTERY SAVER FEATURE. TEST IT OUT.

THE EXTENDED CRANK MAY BE A CHECK VALVE IN THE FUEL PUMP IN THE TANK, ALLOWING PRESSURE TO DROP WHEN YOU TURN THE ENGINE OFF.
OR A BAD FUEL PRESSURE REGULATOR ON THE ENGIEN FUEL RAIL.

TRY THIS TEST, TURN KEY TO "ON" POSITION, WAIT 5 SECONDS, SHUT OFF KEY FOR 30 SECONDS. TURN KEY ON, WAIT 5 SECONDS, THEN START ENGINE. IF IT STARTS RIGHT UP, YOU ARE LOSING FUEL PRESSURE WITH ENGINE OFF.

THIS BUILDS UP PRESSURE IF IT DROPPED DURING SHUT DOWN.
REPORT TEST RESULTS.

PLEAE RATE, THANKS

May 16, 2011 | 1998 Ford Windstar

1 Answer

I have a 98 bravada, it will start and run for about 3 seconds then die


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.

Feb 21, 2010 | 1998 Oldsmobile Bravada

1 Answer

How to change fuel injector in 98 bravada


You need to relieve the fuel pressure, Gain access to the fuel rail, should be 4 or 5 bolts holding the fuel rail on... once you accessed and removed the fasteners, carefully pull up on the railon aboth sides.. a little wd may help release the injector seals, and you definitely wanna replace the lower o-rings... be careful liining the injectors up when u install the rail

Sep 14, 2009 | 1998 Oldsmobile Bravada

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