Question about 1999 GMC Suburban

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Ignition fuse keeps blowing

40A Ignition fuse blows every time key is turned to start position

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Has the stater been removed at anytime?
I had the same thing happen the fuses are not cheap.
I had replace the starter and it was the same. It was blowing the mist expensive fuse.I end up taking the starter halfway out tighten the but on the ground wiring and that fixed it.

Posted on Mar 04, 2015

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  • 308 Answers

Solenoid wire to starter may be shorted at starter..

Posted on Jan 21, 2013

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6ya6ya
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Posted on Jan 02, 2017

Murphybanton
  • 2004 Answers

SOURCE: ignition fuse blows every time

Please replace the fuse with a higher rated fuse like 50 to 100 amp.

Take care.

Please rate this fixya.

Posted on Apr 10, 2009

emissionwiz
  • 75051 Answers

SOURCE: truck starts but won't stay running

You may have a problem with the contacts in the ignition switch (not key part), when you crank the engine a signal is sent to the fuel pump to run, when it starts and you let off the key another set of contacts keeps the pump getting power Through a relay), these are known as crank and run modes.

Posted on Aug 04, 2008

  • 58 Answers

SOURCE: ECM BATT fuse keeps blowing

That fuse provides power for the fuel pump. Either your fuel pump is blowing the fuse or there is a shorted wire.

Posted on Dec 21, 2008

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SOURCE: truck wont start keeps blowing the ecm batt fuse

You have a short (bear wire) somewhere. Trace the wire and find it.
Have a great evening

Posted on May 01, 2009

yotaguy
  • 232 Answers

SOURCE: im have a 40 watt fuse that blows when i start my truck occasiona

It could be either the ignition switch,clutch safety switch(if applicacle)or the starter solenoid,I'm including the circuit diagram for you,one of the 2 or three if it's manual trans has short,if the fuse is blowing as soon as you turn the key on(not engaging the starter)it will be in the switch itself or the clutch safety switch.If it happens when you go to engage the starter it's most likely the solenoid.
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Posted on May 12, 2009

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1 Answer

I have a 2004 chevy surban that keeps blowing the ignition fuse what can cause this


You have a direct short to ground on that power feed circuit . You need to find a power distribution diagram to see what all gets is power from that fuse . Isolate the circuits till the fuse doesn't blow any more , then trace out that circuit that blows the fuse .

Which Ignition fuse ? Which fuse box is it in ? under hood , passenger compartment ?
IGN A
40A
Ignition Switch RUN, START, RUN/START/ACCY
IGN B
40A
Ignition Switch RUN/ACC, RUN/START
Could be ignition switch problem , Chevy has had problems with them .

Jul 06, 2016 | Cars & Trucks

1 Answer

Remotekey will not work. dashboard indication not lit.only powere steering light no clock or temperature lit. all fuses ok


A fuse can blow but physically look intact. How did you verify the fuses were ok? It could be that the 40A fuse 8 in the engine compartment fuse box has blown.
This supplies multiple circuits which are themselves individually fused in the consumer box inside the car.
The smaller 15A fuse 15 in the consumer box would normally blow under these circumstances but f the horn does not work as well and there are other things you have not listed that do not work like brake lights or headlights, it is definitely the under bonnet fusebox where the problem lies.
Good luck.

Jul 28, 2014 | 2007 Suzuki Swift 1.3

1 Answer

I have a 2003 mitsubishi lancer. Everytime I try to turn my key from the ignition to start my car my fuse 4 (40A) blows up I replaced it twice but the new fuse just keeps blowing up:/ what's going on?...


There is a major electrical fault that keeps blowing the fuse. The fuse protects that part of the electrical circuit, 40 amps is heavy electrical circuit, it it wasn't protected by a fuse it car could catch on fire.
You need to get an auto electrician or your Mitsubishi service center to locate the fault and repair.
If you had a wiring diagram for your car then you can trace the wiring from the 40A fuse to the various components to locate the wiring fault or component fault.

Dec 30, 2012 | Cars & Trucks

1 Answer

40 amp ignition fuse keeps blowing


U have a positive wire making ground

Jul 30, 2012 | Jeep Cherokee Cars & Trucks

2 Answers

The AM2 fuse under hood keep blowing out every time i turn the ignition key switch to on position


I would disconnect the noise filter located by the ignition coil/ignitor, have seen them short out and cause the AM2 fuse to blow. Also Disconnect coil, dist and see if short goes away

Dec 07, 2011 | 1994 Toyota Camry

1 Answer

I have a 1993 ford explorer, every time i turn the ke to the run position, it blows the ignition 60amp maxi fuse under the hood. The first time this happened, I replaced the fuse and the SUV ran fine for a...


I'm no expert but when you turn key to run position, this turns the fuel pump on if the pump is faulty i would think it would blow the fuse also. Or its your theory a short in the ignition system wiring.

Mar 20, 2011 | 1993 Ford Explorer Limited

1 Answer

When key is turned to on position, keeps blowing 30 amp fuse


It sounds like you have a short in some wiresets. Check the wires directly connected to the ignition. If this persists, without any problems with wires, I suggest checking the amperage and voltage on your battery to make sure they are at operational levels. Anything over 14.8 volts and you start to fry electrical components and... blow fuses.

Mar 19, 2010 | 1995 Toyota Corolla

1 Answer

2000 Grand Voyager blowing the ignition fuse


Was the old fuel pump bad? It might be worth the cost to replace the ignition switch. The wires to the fuel pump would be a second guess if the old pump was bad and burnt the wires before the fuse went. When you eliminated the fuel pump you also eliminated the wires to the pump and it started. Then you replaced the pump, but not the wires. The ignition switch is the other end of the circuit.

Jun 08, 2009 | 2000 Chrysler Grand Voyager

1 Answer

30 amp ignition fuse in engine compartment blows at start


It sounds like a bad ignition switch or something is grounding out.Try to isolate the problem to key positions.See if the fuse blows when you turn the key to ACC(when your dash lights come on without starting)If the fuse does not blow then when you go to start it and it blows it could be one of many problems,the more common ones could be ignition switch,wiring,starter relay,starter soleniod,or perhaps the starter itself is shorting out,this can sometimes happen when a starter goes bad.

Apr 12, 2009 | 1996 Hyundai Accent

1 Answer

The big 40A fuse under the hood keeps blowing when


youll have to probe that elec.circuit to find what is causing your short

Feb 25, 2009 | 1998 Chevrolet Blazer

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