Question about 1998 Oldsmobile Bravada

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Where would i find a diagram for the fuel pump return/vapor and gas lines on a 1998 bravada?

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I have a 98 buick regal. I have three fuel lins

One is for the fuel delivery, one is for the return and the other one goes to the vapor cannister.

Sep 17, 2014 | 1998 Buick Regal

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98 buick regal the lines attached to the gas tank what are the used for?

Those are vapor return lines. The engine uses some of the fuel, but not all so vapor not used will be sent back the fuel tank and reused by the engine. It's all a part of the emissions operation of the vehicles. Rather than porting the excess fuel into the air like the old vehicles did they created a return line to the tank to save fuel, protect the environment and get you better MPG or Miles Per Gallon.

Sep 17, 2014 | 1998 Buick Regal

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Diagram for gas tank hoses on 1999 oldsmobile bravada

It depends on which one is leaking. You should have two fuel lines from the pump plus two or more lines for the vapor recovery. The lines for the pump are under 50-70 PSI.
I don't have a diagram.

Jun 26, 2012 | 1999 Oldsmobile Bravada

1 Answer

How do you access the fuel pump 1999 oldsmobile bravada

The fuel pump is located inside the gas tank, in order to replace it you must remove the gas tank from the car, remove the fuel pump module retaining ring and then remove the fuel pump assembly. You will need a good hydraulic floor jack, safety jack stands and a really good set of hand tools, a helper is a must. This is a about a 4 hour job. Be very conscious of the fire hazard here, fuel vapors can ignite VERY easily.

Jan 25, 2012 | 1999 Oldsmobile Bravada

3 Answers

Little Black Box, Fuel Pump, Fuel Lines

it sounds like you have a line hooked up to the wrong spot, and that little black box sounds like the charcoal canister, which is used to filter out fuel vapors. it sounds like either the supply or return line has been hooked into the vapor line. retrace your steps, largest diameter line is supply, medium is return, smallest line is vapor line. good luck!

Jun 03, 2010 | 1996 Chevrolet S-10 Pickup

1 Answer

Is there a fuel pressure regulator on a 1994 bravada with cpi

if it has a single fuel line the regulator is built into the fule pump/sending unit, on systems with return lines the regulator will be on the return line

Apr 17, 2010 | 1994 Oldsmobile Bravada

1 Answer

Need diagram of gas lines for a 1998 oldsmobil bravado can you tell me how to replace the gas line to the gas tank of a 1998 oldsmobile bravoda?

Gas tank drop to replace rear lines. Pretty major job all around. If you want a good deal on used lines sets look at ebay "stores" for "s10warehouse". He has several good used line sets cheap.

Feb 12, 2010 | 1998 Oldsmobile Bravada

1 Answer

1998 olds Bravada, runs great in the driveway, once in gear, i give it gas and it quits, only happens in cold weather

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.

Dec 11, 2009 | 1998 Oldsmobile Bravada

1 Answer

The three lines that go into the fuel pump. this is a plastic tanl

You have the 1. hi pressure line to the fuel filter and then to the injectors, 2. the return line from the fuel injector system to the gas tank. 3. you have the return line from the EVAP canister at the left rear of the blazer. Note it's common for the fuel line to leak along the frame rail where the lines are clipped on to the nylon brace. Hope this the answer your looking for, the only two lines that is going to have fuel is the hi pressure and return, the EVAP line is vapors from the canister.

Nov 03, 2009 | 1998 Chevrolet Blazer

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