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Why does the 40 amp amp1 fuse blows - 1993 Toyota T100

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1 Answer

Blowing 40 amp fuse when trying to start


check that the small wire on the solenoid is not touching the big terminal on the starter solenoid or is not shorting out any where .

Apr 22, 2014 | 1991 Dodge Dakota

1 Answer

1995 Mercury Grand Marquis blowing 40 amp fuse as soon as I turn on ignition


It will help if you can identify the 40 Amp fuse that is being toasted when the key is turned.

I looked briefly at a fusebox diagram and found 3 circuits protected by a 40 Amp fuse. The Lamp circuit protects several circuits which have smaller rated fuses on each separate wire. The 40 Amp protection seems to be a safeguard if all the smaller circuits are active in total. Turning off the automatic headlights, should reduce power drain.

The next circuit is the Rear window defroster. Can easily pull 40 Amps, but once the 40 Amp fuse breaks, it should have no effect on the engine.

The last circuit, on the cars with Trailer Tow or Police package has a
40 Amp fuse on the Battery charge Relay. This is a remote possibility. But the engine should be able to run without an Alternator for several minutes using Battery power.

Have them check the fuel pressure. The Inertia switch could have tripped while the car was being repaired. It does not explain the wiring short, but can explain the no start condition.

Again, if the same 40 Amp circuit is overloading, identify the circuit with the fuse box diagram.

Feb 18, 2014 | 1995 Mercury Grand Marquis

1 Answer

40 amp ignition fuse keeps blowing


U have a positive wire making ground

Jul 30, 2012 | Jeep Cherokee Cars & Trucks

1 Answer

94 Jeep Grand Cherokee 4x4 with the 4.0 Keeps blowing the fuse that controls the fuse box inside the jeep, its blowing a 40 amp fuse. I believe there is a short. but i don't where to look.


Get yourself a set of factory wiring diagrams,
otherwise your wasting your time

You have no idea what you working on, without
reference material

Helm.Com

Jun 20, 2012 | 1994 Jeep Grand Cherokee

1 Answer

Electric sliding doors blow fuses but will work for a while after yu renew the fuse


There are 3 fuses for the sliding doors if your vehicle has the left and right sliding doors. There are 2 fuses if your vehicle is equipped with the right side only. There is a 20 Amp fuse - this provides power for the Sliding Door Control Modules and a 40 Amp fuse for each door. The problem is an electrical overload on one of these fuses. If the 20 Amp fuse is blowing, it is probably the door module(s) or the wiring between the fuse and the door module causing the problem. If the 40 Amp fuse is blowing,the problem could be the door module, the door motor/transmission, or the wiring between the door module and the door motor.

Jan 15, 2011 | 2003 Pontiac Montana

1 Answer

40 amp ignition fuse keeps blowing


ok. fuse to WHAT ? 40 maxi fuse takes a lot to blow.

Jan 02, 2011 | 2004 Ford Focus

1 Answer

My 89 geo tracker blows the 40 amp fuse


You will need to trace the wire to find the short that is blowing the fuse. It can be in the harness somewhere. Usually the harness will be rubbing against the frame parts until it gets to the bare wire. It does take years to get that far

Mar 07, 2010 | 1989 Geo Tracker

1 Answer

1999 Chevy Venture 40 amp fuse keeps blowing when I try to start the van. This happened on three seperate days. I drove 150 miles and stopped the van. The could not start the van again. When I try to...


make sure of two things one is any wires touching at the starter to ground or melted and or is the starter drawing too much amperage causing the fuse to blow.starter may have a dead short in it.

Aug 16, 2009 | 1999 Chevrolet Venture

1 Answer

Ignition switch fuse terminal is blowing red 40 amp fuse when i try to replace it


A fuse that is consistently blowing is telling you that there is a short in that system. Don't attempt to bridge it or use a larger amp fuse or you will have a major problem. You will need to start tracing wiring to destinations to find the short. If while moving harnesses around problem ceases to exist, look at nearby items where you are working and try to locate what was grounding. Sometimes people will stop if short disappears, leaving open the possibility of it happening again.
If you are not comfortable working with wiring, then leave it to professionals who do this every day. It's not really difficult but requires patience and a good bit of knowledge to do this right!

Apr 18, 2009 | Dodge Caravan Cars & Trucks

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