Question about 1988 Pontiac Bonneville

2 Answers

I have had the fuse to the fuel pump blow so i replaced the pump and it still does it . so i unpluged the pump and the fuse still blowes

Posted by on


2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,267 Answers

The problem is not the pump but in the wiring. The sensor is connected in series type(remember in school -- series and parallel) and thus is being fed higher current and/or voltage from the battery. Its the wiring which is clamped together. Examine by tracing both leads to the battery. Its insulation must have melted and come in contact with another wire which caries higher current. The fuel pump gets activated the moment you turn the ignition key 2 notches, i.e., the dashboard lights starts glowing and thus turns on the electric circuit in which the pump(fuel) is an essential gadget. So check the wiring thouroughly including the ignition key terminals.........................sodeep

Posted on Oct 02, 2009

Testimonial: "i have thought about that and i have replaced two wires from the fuse box to the pump so i guess it is the other way to the battery like you say thank"

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 29 Answers

The fuel pump relay may be causing the fuse to blow.

Posted on Oct 02, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

1999 Toyota camry. Automatic trans. Blows fuel pump fuse when shifting into drive. Checked wiring. What else can it be?

Robert: According to " I agree it may not be your fuel pump. You can access the pump under your back seat, underneath the cloth under there. You will iummediately see the plug and the screws to open the little hatch. My 1986 Camry also has a problem with not getting any fuel and thought it was the fuel pump. turns out I keep blowing my efi fuse so i unplug the power wires to the fuel pump and it still keeps blowing the 51a efi fuse. So we have narrowed it down to being an electrical problem. We think it is a shortage or a bad relay. So do not instantly run out and think it is your fuel pump. If you are blowing fuses unplug the power wires to the fuel pump and try to crank the car if the fuse still blows then it is not a bad pump, if it does not blow then there is a shortage in the wires in your fuel pump. Hope this helps I will let you know exactly what the elctrical problem is in my car once we do a complete run down."

May 21, 2015 | 1999 Toyota Camry

2 Answers

2004 ford explorer when you turn the switch on the fuel pump fuse blows . i un pluged fuel pump it still blows . i went and un pluged fuel control module and it doest blow

Unplugging the fuel control relay or module will ensure no current is entering the wire heading towards the fuel pump. The likelihood is there is a short circuit somewhere along that part of the circuit though it is possible the relay could be faulty.

Ideally, with the aid of a circuit diagram, the wire should be traced from the source at the fuel pump module along its length until the fault is discovered. There is intelligent equipment available that can locate short circuits.

Mar 03, 2015 | Ford Cars & Trucks

2 Answers

Fuel pump fuse blow when I turn the ignition on and cranks but no start, why?

Unplug the connector at the fuel pump. Install a new fuel pump fuse. Try to start the car. Does the fuse blow? If not that the problem is probably a bad fuel pump. If the fuse does blow with the pump disconnected than you need to look for a short in the power supply to the fuel pump.

I’m happy to assist further over the phone at

Sep 08, 2013 | 2001 Saturn L-Series

1 Answer

Caprice classic 1991 model fuel pump will not come on. fuse mounted underhood next to ABS relay blows upon contact with circuit

e fuel pump motor may have failed, causing a short and blowing the fuse. Try unplugging the fuel pump connector at the pump, then turn key on with a new fuse in place. If the fuse blows again, it could be a short in the pump's wiring. If the fuse doesn't blow, it is likely a bad pump.

Nov 14, 2012 | Chevrolet Cars & Trucks

2 Answers

Fuel pump fuse blows as soon as i turn key 1988 buick skylark 3 litre


Jun 19, 2012 | Buick Skylark Cars & Trucks

1 Answer

Blowing fuse #9 in underhood fuse box(fuel pump fuse)Unplug fuel pump and fuse ok plug fuel pump back in and fuse blows.Replaced fuel pump(pump only)and still blowing fuse.

you should have checked all the wiring at the pump/sending unit inside and out as sometimes there is an indication of shorted wires.the problem is definitely at the unit either internal or external.recheck the wires.i`m assuming you mean you have reassembled every thing back together and the tank is re- installed.if not and you mean you have it out of the tank and connected it and the wires are good and not touching anything then you have a bad pump(its happened before).

Jul 06, 2011 | Mercury Cougar Cars & Trucks

2 Answers

Fuse to fuel pump blow as soon as in stall

unplug feul pump at tank and see if fuse still blows , if not then replace feul pump and if yes the look for short.

Jan 18, 2011 | 2004 Mitsubishi Outlander

1 Answer

Keeps blowing fuel pump fuse. Why?

This normally happens due to short in the wirings.Or if someone has connected a stereo or some other electrical contrivance to the wiring harness (bundle), either under the dash or under the hood.To confirm this unplug the fuel pump wiring connections and insert new fuse.Then start the car and see,if still the fuse blows then its a short in wiring.But if the fuse does not blows then its faulty fuel pump relay or faulty fuel pump itself.So first replace the fuel pump relay and see,if the fuel still blows then its faulty fuel pump.But if the fuse not blowing then relay was the faulty part.The fuel pump relay located on the fuse box under the hood.---------This troubleshooting tips will help you locate the fault and solve it.-------Thanks.Helpmech.

Dec 13, 2010 | 1996 Dodge Neon

1 Answer

Efi fuse short in a 1993 sr5 pickup. put the fuse in and it'll start sometimes and then blow the fuse right away down the road or it'll just blow the fuse right when i turn it on...

may be the fuel pump short out.
unplug the fuel pump connector to see if the fuse still blow.
if the fuse is not blown when you try to start then the fuel pump is bad

Mar 07, 2010 | 1993 Toyota Pickup

1 Answer

Blowing fuel pump fuse

Did you change the pump? It may be drawing too much current and causing the fuse to blow... My recommendation is to replace that if you continue to have this problem OR unplug the fuel pump and see if it still blows... then it is a shorted wire!

Apr 19, 2009 | 1997 Pontiac Sunfire

Not finding what you are looking for?
Cars & Trucks Logo

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

80339 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

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

Answer questions

Manuals & User Guides