Question about 1993 Buick Roadmaster

1 Answer

Disconnecting fuse when changing fuel pump

When I am changing my fuel pump, I read that if I dont disconnect the fuse connected to the fuel pump it could cause an explosion. How do I know which fuse is the correct one to disconnect, and if I disconnect my battery would there still be the risk of an explostion?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 195 Answers

What you don't know is that you have to disconnect your Pos Cable, that disconnects any communication between your Computer and your Battery. Who the Man?, Leave your Negative Connected. Hey, all you gotta do is wait 10 Minutes. Can you do that? Re-Connect your Pos and watch, all your lights are out.

Posted on Dec 12, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How To Drain Fuel Tank On 2005 Jeep Liberty Gas Tank


here is the Cherokee page.
read chapter, 14, page 19 on..
shows all way there, and is not easy.
why do this.
is pressure low
pump dead
is there 12vdc to pump cranking, (no? then dont do this)

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

i have the KJ pages here. (line # messed up)
Two different procedures may be used to drain fuel
tank: through the fuel fill fitting on tank, or using a
scan tool.
The quickest draining procedure involves removing
the rubber fuel fill hose (7) (Fig. 25) from fuel tank
fitting.
As an alternative procedure, the electric fuel pump
may be activated allowing tank to be drained at fuel
rail connection. Refer to DRB scan tool for fuel pump
activation procedures. Before disconnecting fuel line
at fuel rail, release fuel pressure. Refer to the Fuel
System Pressure Release Procedure for procedures.
Attach end of special test hose tool number 6541,
6539, 6631 or 6923 at fuel rail disconnection (tool
number will depend on model and/or engine application).
Position opposite end of this hose tool to an
approved gasoline draining station. Activate fuel
pump and drain tank until empty.
If electric fuel pump is not operating, fuel must be
drained through fuel fill fitting at tank. Refer to following
procedures.
(1) Release fuel system pressure.
(2) Raise vehicle.
(3) If equipped, remove fuel tank skid plate.
(4) Thoroughly clean area around fuel fill fitting
(6) (Fig. 26) and rubber fuel fill hose (1) at side of
fuel tank. After cleaning, loosen fuel fill hose clamp
(2) at tank.
(5) Before removing rubber hose (1) (Fig. 26) from
fitting, note hose orientation while referring to marks
(3) and (4).
6) Disconnect rubber fuel fill hose at fuel tank fitting
(2) (Fig. 27). Using an approved gas holding
tank, drain fuel tank through this fitting.
Tank Removal
(1) If equipped, remove fuel tank skid plate and
tow hooks. Certain equipment packages will also
require removal of the trailer hitch. Refer to Tow
Hooks, Trailer Hitch or Skid Plate in 23, Body for
removal/installation procedures.
(2) Disconnect and separate fresh air tube (6) (Fig.
28) quick-connect fitting.
(3) Disconnect air tubes at front of NVLD pump
(9) (Fig. 28).
(4) Disconnect NVLD pump (9) (Fig. 28) electrical
connector.
(5) Disconnect fuel pump module electrical connector
jumper. This is located near front of fuel tank.
(6) Support tank with a hydraulic jack.
(7) Remove 4 fuel tank strap bolts (10) (Fig. 28) (2
at front of tank; 2 at rear of tank), and remove both
tank support straps.
(8) Carefully lower tank a few inches.
(9) Continue lowering tank while guiding remaining
hoses and lines through plastic isolator sleeve (3)
(Fig. 29).
(10) If fuel tank is to be replaced, remove NVLD
pump and fuel pump module from tank. Refer to
Fuel Pump Module Removal/Installation procedures.
end , tank out.

why not login to alldata.com and read
or buy the FSM,, and get all pages of chapter 14, end to end.

Oct 19, 2015 | 2005 Jeep Liberty

1 Answer

How to change fuel pump


Disconnect fuel pump fuse, crank until it stalls to depressurize the system. Disconnect straps holding tank underneath. Lower and disconnect fuel lines from the tank assembly. Replace pump, reassemble, reinstall fuse, change filter, and voila. Takes about 2 hours and helps to have 2 people.

May 28, 2014 | 1997 Nissan Pickup

2 Answers

1993 Buick Roadmaster keeps on blowing fuel pump/ecm in-line 20 amp fuse. Car stalled out in a parking lot, would not start, no fuel. Changed fuel pump, fuel filter, fuel pump relay. Found fuel pump/ecm...


Sorry to say it could also be a faulty ECM. The ecm uses circuit boards to provide grounds to a bunch of components and can short out internally.
Most of those components can fail and cause the same problem by causing a short "thru" the ECM. Things like injectors, O2 sensors, and so on.
I doubt you will find the problem without a book and some test equipment.

Jun 29, 2012 | Cars & Trucks

1 Answer

How to replace injectors on 305 1997 Chevy pickup vortech?


disconnect battery, disconnect fuse pump fuse, locate fuel rail where the fuel injectors are connected to, then unmount the fuel rail, then disconnect wire to injector, then wiggle it out of the rail, then do the same for the other injectors. to install simply follow reverse order.

Jun 16, 2011 | Chevrolet 1500 Cars & Trucks

3 Answers

How to change a fuel pump in 2004 Volkswagen Jetta


IN THE GAS TAKE BY DROPPING THE TANK OR UNDER THE BACK SEATS IF IT THERE YOU WILL TO REMOVE THE SEATS OUT

Mar 07, 2011 | 2004 Volkswagen Jetta

3 Answers

How do you change a fuel pump and filter on a 2005 manual chevy aveo?


Removal & Installation
  1. Relieve the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Remove the rear seat.
  4. Remove the fuel pump access cover.
  5. Disconnect the electrical connector at the fuel pump assembly.
  6. Disconnect the fuel line.
  7. Remove the fuel pump assembly clip.
  8. Remove the fuel pump assembly from the tank.
  9. Remove and discard the gasket.

To install:
  1. Clean the gasket mating surface on the fuel tank.
  2. Position the new gasket in place.
  3. Install the fuel pump into the fuel tank in the same location as removed for ease of line and connector installation.
  4. Install the fuel pump assembly clip.
  5. Connect the fuel pump assembly connector.
  6. Install the fuel pump line.
  7. Install the fuel pump access cover.
  8. Install the EF10 fuse.
  9. Connect the negative battery cable.
  10. Perform an operational check of the fuel pump.
  11. Install the rear seat.

Mar 06, 2010 | 2005 Chevrolet Aveo

2 Answers

The fuel pump was not engaging so we replaced it.


the fuel pump doesnt set off the check light recheck the connections at the fuel pump check for power to the connector also check the pump new doesnt mean not defective

Jan 15, 2010 | 2002 Chevrolet Blazer

3 Answers

20 amp fuse for fuel pump keeps blowing


ha iam pretty shore that you have a wire harnes prolbem. ive tow a bunch of these in for the same prolbem. you will have to take it to the dealer to fix it

Aug 21, 2009 | 1995 Ford Windstar

2 Answers

Birning the fesue for the fuel pump


You could have a short in the wire harness to the fuel pump or the fuel pump it self is bad or the relay has gone bad also. Start with the replacement of the fuel pump relay and also find the wire harness to the fuel pump sending unit from the frame to the gas tank and disconnect the connections. If the fuse does not blow when the connection to the fuel pump is disconnected, then it's a go chance that it's the fuel pump. If the fuse blows and the wire harness is disconnected, then the problem is towards the fuel pump relay and fuse block. Good luck and keep me posted, be glad to help you get your car running 100% again. 

Jul 27, 2009 | 2003 Kia Rio

1 Answer

My fuel pump fuse blows i have a short,i un pluged the fuel pump,i unpluged the coil to the dist.the fuel pump relay i un plugged the fuse still blows i was told that the short was between the fuse box and...


disconnect wiring to pump. install new fuse for the pump and turn over ignition. the car wont start because the fuel pump wiring is diconnected. check the fuse to the fuel pump, if the fuse did not blow when the pump is disconnected it is a faulty fuel pump. I read this somewhere and a garage is up to 850 dollars in parts and labor only to offer me more parts and labor not relevent to my problem. I am towing it home and running this test my self.

Dec 16, 2008 | 1990 Pontiac Trans Sport

Not finding what you are looking for?
1993 Buick Roadmaster Logo

Related Topics:

125 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

60541 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21927 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...