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My 40A ignition A fuse keeps blowing, what could cause this?

Other than putting an 80A fuse in untill i see smoke to find out whats going on, what could cause my 40A ignition (A) fuse to blow?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 366 Answers

SOURCE: The big 40A fuse under the hood keeps blowing when

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

Posted on Feb 26, 2009

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polarcycle
  • 1392 Answers

SOURCE: 80a fusible link 95 4runner keeps blowing

You either have a short somewhere, or the alternator is over charging. What does the volt gauge read before it blows, if you don't have a gauge, get a volt meter and test at the battery. Anything over 14.5 will blow the link.

Posted on Jun 10, 2009

  • 2 Answers

SOURCE: FUSE KEEPS BLOWIN (STARTER, IGNITION, & FUEL # 8 FUSE)

you need a new starter I just went through this problem had my starter changed and have not blown any fuses in days....oh and by the way getting to the starter was not and easy task.

Posted on Jun 18, 2009

  • 87 Answers

SOURCE: My ignition fuse keeps blowing on my 1995 neon.

CHECK THE THICK WIRE AT THE BACK OF THE ALTERNATOR THEY ARE PRONE TO MELTING THE INSULATION OFF AND SHORTING OUT AGAINST ANY METAL[GROUNDING OUT]

Posted on Aug 06, 2009

  • 19 Answers

SOURCE: 1995 HONDA CIVIC 1.5L KEEPS BLOWING 80A MAIN BATTERY BLOCK FUSE

its shorted to ground some where

Posted on Sep 02, 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

2 Answers

I have a 1993 Celica that ran fine, cut it off and when I tried to start it again it would crank but wouldnt start?


Your ignition module or wires to it are fried. If you keep putting fuses in, you will melt the wiring. Remove the module and using the guidelines of the manufacturer test it. If it is bad, or it is old and you haven't changed it in a while, go ahead and replace it. Before you do, when you remove it turn the key on and see if the fuse still blows. If it does, it is the wiring or something else. My bet is the module.

Nov 02, 2013 | Toyota Celica Cars & Trucks

2 Answers

Ignition fuse keeps blowing


solenoid wire to starter may be shorted at starter..

Jan 21, 2013 | 1999 GMC Suburban

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

20A ACC/cig fuse, 40A fan fuse (AC) keeps blowing on 05 Sebring.


Disconnect the cigar lighter and see if the short goes away, I will bet it does.

Aug 09, 2012 | Chrysler Sebring Cars & Trucks

1 Answer

My chevy silverado keeps blowing the 40A fuse for the AC


the windings in the coil on the compressor clutch is shorted,you need to remove the drive pulley where the belts hook on the compressor,then unbolt the 4 bolts holding the coil assy

Mar 17, 2010 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

Battery connection


This is your main fusible link (fuse)

Replace the fuse with another 80A one, if it blows again you have a dead short somewhere on the main wiring, else it could be that you got some water in the wirng that caused the fuse to blow.

If it blows again, take it to an auto electrician to trace the fault.

Jun 21, 2009 | 2005 Suzuki XL-7

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

2 Answers

Diagram of fuse panel under dashboard


2003 Excusion, V10, 2wd, Eddie Bauer

I had a hardtimefinding this informaton, hope it helps.

fuses
Fuse link
cartridge
2A Grey Grey — — —
3A Violet Violet — — —
4A Pink Pink — — —
5A Tan Tan — — —
7.5A Brown Brown — — —
10A Red Red — — —
15A Blue Blue — — —
20A Yellow Yellow Yellow Blue Blue
25A Natural Natural — — —
30A Green Green Green Pink Pink
40A — — Orange Green Green
50A — — Red Red Red
60A — — Blue — Yellow
70A — — Tan — Brown
80A — — Natural — Black
Passenger compartment fuse panel / power distribution box
The fuse panel is located below and to the left of the steering wheel by
the brake pedal. Remove the panel cover to access the fuses.
Roadside Emergencies
To remove the fuse panel cover,
turn the panel fasteners
counterclockwise.
To remove a fuse use the fuse puller
tool provided on the fuse panel
cover.

The fuses are coded as follows.
Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
1 15A* Adjustable pedals
2 20A* Power point -floor console
3 20A* Power point – 3rd row
4 20A* Power point -instrument panel
20A* Power point -right rear quarter
6 20A* Trailer tow turn/stop relay
7 30A* High beam headlamps / Flash to pass
8 — Not used
9 20A* Heated mirrors
10A* A/C clutch
11 20A* Radio (main)
12 20A* Cigar lighter / OBD II
13 5A* Power mirrors/switches
14 15A* Daytime running lamps
10A* Driver’s seat module memory
16 15A* Rear seat controller
17 15A* Exterior lamps
18 20A* Turn lamps/Brake on-off switch (high)
19 10A* Body security module/4x4 module
— Not used
21 25A* Rear wiper motor
22 20A* Engine control
23 20A* Engine control
24 15A* Air suspension
10A* 4-Wheel Anti-Lock Brake System
(4WABS) module
26 10A* Airbags
27 15A* Ignition switch Run feed
28 10A* EATC module module/Front blower relay
coil
29 10A* Customer access
Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
30 15A* Highbeam headlamps
31 15A* Clutch interlock switch
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Keep-Alive
37 15A* Horn
38 20A* Trailer tow park lamps and backup lamps
39 — Not used
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44 10A* PATS module, transceiver
45 10A* Ignition switch Run/ Start feed
46 10A* Left-hand lowbeam
47 10A* Right-hand lowbeam
48 10A* Rear wiper motor
101 30A** Trailer tow electric brake
102 30A** Door locks/Body security module
103 50A** Ignition switch
104 40A** Heated backlite
105 30A** Injector driver module
106 30A** Front wiper main
107 40A** Front blower motor
108 40A** Auxiliary blower motor
109 30A** Heated seats
110 50A** Ignition switch
111 30A** 4WD/Shift on the fly
112 30A** Left-hand power seats

Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
113 30A** Starter motor
114 30A** Right-hand power seats
115 20A** Trailer tow battery charge
116 30A** Ignition switch
601 30A CB Door window motors
602 60A** 4-Wheel Anti-Lock Brake System
(4WABS) module
210 — Not used
211 — Not used
212 — Not used
301 — Front blower motor relay
302 — Powertrain (EEC) relay
303 — Injector driver module relay (Diesel
only)
304 — Heated backlite relay
305 — Trailer tow battery charge relay
306 — Delayed accessory relay
307 — Starter relay
* Mini Fuses ** Maxi Fuses

Jan 27, 2009 | 2002 Ford Excursion

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