Question about 1984 Cadillac DeVille

1 Answer

On my secondary fuse box which is not labeled the number six fuse blows when I turn the key on immediatly. Seems to be something to do with fuel?

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 134 Answers

If its the fuel pump it may be froze up causing an overlaod on the circuit that would blow the fuse thats if it is for the fuel pump. The fuel pump turns on as soon as you turn the key on the other option is you have a short that would also cause the fuse to blow if you could look in the owners manual and find out exactly what the fuse feeds i could help you better but that is the best advise for the info you have right now. thank you

Posted on Nov 11, 2010

  • 1 more comment 
  • brian401361 Nov 11, 2010

    Thank you much for the info. Wierd thing is now I stuck a fuse in it and it runs but the two times it has done it to me I went probably the same distance when the fuse blown. So is it possible to for the fuel pump to overheat and days later be alright until the next time it overheats?

  • par sims Nov 11, 2010

    yea its possible what is causing it to get stuck could be a number of things and could cause it to come and go. it wont overheating really just getting stuck causing the circuit to overload. Or it could be the other option a wire could be shorting out and as you drive with the vibrations the wire shorts i didnt ask before and im sorry i should of. when the fuse blows the car stop running correct?

  • brian401361 Nov 11, 2010

    Yes the car stops running. Another thing im wondering is that there are some wires shorting out in the steering column or under the dash my other one had some problems similar then when you jiggled the wires under the dash it would start just didnt blow any fuses in would just die. Another reason that im suspect of that is when I turn my steering wheel while driving a relay in the same secondary fuse box makes a clicking sound. Thanks again for the response and hope to here back!



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

a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2008 sienna, How do you check a fuel pump with no test port for fuel pressure check on the vehicle.

No solution here, but wondering what your next step was...I think the same thing happened to me, but wanted to check the fuse at least before I have my van towed to some mechanic in Italy. Did you locate the fuse? Which box and was it labeled something other than fuel pump?

Apr 19, 2013 | 2008 Toyota Sienna

1 Answer

Starting problem, motor cranks but won't turn over

A common fault is air in the fuel system caused by a fuel pump failure or just a simple pin hole in the fuel pipe allowing air into the fuel instead of fuel.

Feb 27, 2017 | 2002 Volkswagen Beetle Turbo S

1 Answer

My automatic fuel pump seems not to be working,when l start it,it starts but goes off immediatly,tried add some fuel to it directly,it starts but goes of immediatly with the fuel still intact

Thanks for choosing Fixya and welcome to the site. You need to check your fuel pump fuse, relay, and if you have one, the fuel pump reset button. If all of these check out, you will probably need to check the fuel pump. The pump may be bad or something may be killing it. It may only be getting the signal for a second or two. Check those first and get back with me.

May 03, 2011 | 2004 Dodge Ram 2500

1 Answer

The same fuse blows immediatly when heater or radio are turned on

you have a shortcircuit on one of them . it seems like both of the appliances are wired on the same fuse. check for wires that have damaged isolation . Also, check on the diagram that is found on the cap of the circuit breaker box ,that you use the proper fuse when you replace it . Having two appliances on the same circuit ,one of them beeing the heater meens that you have a "big " fuse ,probbably 20A or 30A. If you once replaced it with a smaller one ,you will have the symptoms that you decribed. good luck.

Mar 05, 2011 | 1997 Chevrolet Malibu

1 Answer

Engine management fuel inj faulty.. drives ok then when car has been left to restart car seems to be missfiring juddering then stalls.had new plugs service no idea on why its doing it. when car drives i...

I would really like to help you but for me to come to any conclusion you're going to have to provide your VIN number in other terms vehicle identification number with the VIN I would know exactly which model you have engine installed gearbox installed and certain other factors, you can leave out the last six numbers for they are not necessary and are the serial number of your car look for something starting with VF1.
An adhesive label bearing the car's identity card can be found on the B-pillar or an adhesive label with the VIN can be located at the bottom - left of the windscreen.

Apr 29, 2010 | 1986 Renault Sport

1 Answer

Where is the fuel pump reset switch on my 98 dodge ram 1500 sport?

There is likely a fuse and a relay. The relay is usually under the hood in a black plastic box along with other relays. The fuse is usually near by. Look under the lid of the box as the components are labeled there. Use a test lamp that says computer safe to check the power at the fuse when an assistant turns the key on. The light should come on for a few seconds and then turn off. You may have a failed fuel pump that is causing the fuse to blow. IF replacement of the fuel pump is nessecary, the cargo box will have to be removed (easier than removing fuel tank). ONLY replace with a complete fuel pump module as pump only replacements have a high failure rate. I know, I had to replace twice before getting the complete unit.

Feb 02, 2010 | 1998 Dodge Ram

1 Answer

Trying to find the fuel pump FUSE.

There is no fuse specifically dedicated to the fuel pump on this year and model of Suburban. This Suburban is equipped with dual tanks and as such has two relay switches, primary and secondary, both of which are located at the main fuse box in the engine bay, that power up the respective fuel pumps.

The closest fuse (15A) controlling either of these relays also powers up the main control module (located beside and below the main fuse box). So, if one needs to disconnect the fuel pumps from functioning, then the only effective method is to disconnect the fuel pump relays.

May 27, 2009 | 2003 Chevrolet Silverado Ss

1 Answer

Need to see owners manual my car wont start battery and alternater are good trying to find a strat relay? no problems until this time trying to start it i drove it to the gas station went inside bought...

There is a starter fuse in the black fuse box under the hood. It will have the label of each on it. If you replace the fuse, and it blows again, then the starter is bad.

May 15, 2009 | 1999 Chrysler Sebring

1 Answer

Fuel pump blowing fuses

replace the fuel pump relay, it is burned closed from the shorted fuel pump.

Apr 13, 2009 | 1993 GMC Jimmy

1 Answer

20amp fuse in black box keeps blowing


The fuse ecm b it tied to the fuel pump, PCM, and VCM.
Fuel pump could have an internal short
check it by the way...


Sep 30, 2008 | 1999 GMC Sonoma

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

75 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8269 Answers

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

Answer questions

Manuals & User Guides