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Chevy express 1500 20amp eng 1fuse keeps blowing ?why

20amp eng 1 fuse keeps blowing

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  • 13 Answers

What does it drive - search for some shortcut/ burnt device, wear on cable insulation through 20 amps do not blow without reason. Maybe badly connected engine mass connection - check battery connections to start with

Posted on Apr 18, 2014

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6ya6ya
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Posted on Jan 02, 2017

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alicantecoli
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SOURCE: Chevy silverado keeps blowing fuses

sounds like a mouse has got in and chewed the cables,their is no easy fix from what i can think of but check all the wires and connections in case water has got into it,or snow if your in alaska.its fifteen years old now so its possible that some insulation has broken down or a wiring loom has chaffed somewhere underneath

Posted on Feb 04, 2009

  • 2187 Answers

SOURCE: my chevy express van blows the engine fuse once you try to start

you may want to check out the wiring of the starter and the ignition system if there are some open wires which may cause a short...  if the fuse that blows up if for the ECU, you may check out the main wiring that goes to the ECU if there are open wires which may cause the short.

Posted on Jun 13, 2009

  • 14036 Answers

SOURCE: the ECM fuse keeps blowing out

check the wiring to fuel tank something shorting. replace wires to fuel tank.

Posted on Apr 09, 2009

  • 1 Answer

SOURCE: engine 1 fuse keeps blowing when you turn the key

Engine 1 fuse powers the computer and some sensors. I had this same problem on a 98 chevy van 3500 and found the wire going to one of the oxygen sensors had shorted out on the heat shield. Inspect the wires going to all of the oxygen sensors. On this van one of the oxygen sensors on the driverside the wire was laying on the heat shield which eventually rubbed through the wire and shorted it out blowing the fuse. Your short could be on a different sensor but check all of the oxygen sensors because the wire runs so close to the sharp heat shield.

Posted on Aug 06, 2009

leedavidian
  • 1420 Answers

SOURCE: need a powertrain wiring schematic

I will post the schematic below.

Posted on Nov 19, 2010

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1996 Chevy Silverado 454 motor dually truck. why do my eng-1fuse keep blowing out


fuses blow because the current draw is excessive to the fuse rating. That indicates that there is a massive short after the fuse. ( bare wire to earth relay short, burnt wire on manifold etc). Use a multimeter set on continuity and work along the harness until you find the fault.

Nov 14, 2014 | Cars & Trucks

1 Answer

20amp eng1fuse


Fuses will burn if the load is too high or there is a short to ground on the circuit.

You will need to use a meter, to find the issue... If you do not have the tools or rhe knowledge, take to an auto electrician... DO NOT over fuse.

.... Philip

Apr 18, 2014 | 2000 Chevrolet Express Cargo

1 Answer

My 1997 Chevy suburban k1500 5.7L keeps blowing the 20-A ENG 1 fuse


I had this same problem with a 1997 Z71 K1500. That fuse was receiving power from the ignition switch in my truck. After putting 4 ignitions in it in 6 months, I finally figured out that every time I put the transfer case in 4Low, the service engine light would come on & the ignition switch would go bad soon after. The electric motor that engaged transfer case was bad. Every time I engaged 4 Low, It would throw power surge to ignition & blow it up.

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My ignition fuse keeps blowing on my 2000 chevy express 1500.


I had the same problem with my 2003 chevy express. Follow the wire that goes from the batter down to the starter and look on the underside of it. Mine wore through and was shorting out. Was a pain in the but until if finally found it.
Take care,
Chuck L Plymouth MA

Nov 14, 2012 | 2000 Chevrolet Express Cargo

1 Answer

2001 nissan maxima se keeps blowing the ecm 1 fuse


Did you find the prolbem? Im having the exact same problem you have. Mine is doing it after it died and I replaced the starter but now it wont start and the fuse eng cont 1 keeps getting burned out instantly

Jun 25, 2010 | 2001 Nissan Maxima

1 Answer

I have a fuse blowing constantly on my van


you are on a search and destroy mission, i recommend you buy a manual with wiring diagram, at least it will tell you what is hooked on that circuit, thenits a matter of testing wiring, i suspect you have a short somewhere

May 24, 2010 | 2000 Chevrolet Express Cargo

2 Answers

2002 chevy van 2500 when i turn key to start van


Fuses only blow if-Old,Overheated or you have a Short circuit.
That should be any easy fix,to the extent that there aren't many 40 Amp Fuses and you will need a wiring diagram to follow the problem from the fuse to the cause. If you know what fuse it is, you can guess,but I wouldn't recommend that,it will be time consuming and maybe costly ,if you don't have a test procedure to follow and throw parts at it.
Don't replace the fuse.Their expensive and will keep blowing.

May 05, 2010 | 2002 Chevrolet Express

2 Answers

Engine 1 fuse keeps blowing when you turn the key


sounds as if you have a power shortage in the van. first establish what fuse keeps blowing this will help in narrowing down the short.once short is located check all connections ,wires,and plugs.

Jul 12, 2009 | 1999 Chevrolet Express

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