Question about GMC G3500

1 Answer

What does the eng 1 fuse go to - G3500 GMC Cars & Trucks

Posted by on

  • rcummings3 Aug 21, 2010

    that helped a lot now i know where to look for the problem


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • GMC Master
  • 19,396 Answers


If you are talking about the fuse marked as ENG I , that should be a 20 Amps fuse, and it is connected to the MAF sensor, O2 sensors, crank sensor and Evap system valves it also connects to PCM.

If fuse keeps blowing, check all the wiring , starting from the O2 sensors. If the problem is happening only occasionally shorts can also be caused by water on exposed contacts, particuarly with the O2 sensors, whose wiring is placed in exposed location on the exhaust system.

Posted on Aug 21, 2010

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:

2 Answers

2004 chryser pacifica coil not firing coil is good

Do you have engine management light lit up on the dash?

Dec 22, 2016 | Cars & Trucks

2 Answers

I need help figuring out what the meaning of Eng MTG and ENG cont for a Nissan Altima SL 2.5 2006 in the fuse box and do I need them

YES you need them, ENG MTG is the Engine Management system, and the ENG CONT is the
Engine Control system so you see if they are disconnected you will have a good time wondering what is up with the car

Dec 12, 2016 | 2006 Nissan Altima

1 Answer

Keeps blowing engine 1 fuse when I try taking off. I put new fuel pump,computer,and shift selector on and even had it at the dealership. blew fuse 10min after leaving dealership

Did you check the crankshaft position sensor ! This get's power from ENG.1 fuse 20amp in under hood fuse box . What engine does yours have 4.3 L ? Eng.1 fuse powers up the crank sensor like I already said but it also powers up the oxygen sensors ,mass air flow sensor , evaporative purge solenoid , evaporative vent solenoid . I don't want you to think I'm talking down to you or anything like that but Do you know what each of these parts are that I listed ? One of these is shorted somewhere ,check the wiring for the O2 sensors , they live close to exhaust pipes an manifolds .I have seen the wiring for them melted on manifolds etc.. Take hold of the wiring harness a wiggle it in different spots with it running see if stops running ! I know you would like a little more of a definitive answer but with problems like this you need to take a good look at the wiring ! Good luck hope this helps !

Aug 14, 2015 | 1999 GMC Savana

1 Answer

What could cause both nospark and fuel together at once,one conponet responsible for both failures

Hi Bill , what engine does yours have , 4.3 , 5.0 , 5.7 ,6.5 L ? Check fuse's ECM 1 20amp an ENG 1 20amp in the under hood fuse relay box !

Mar 27, 2015 | 2000 Chevrolet Express Cargo

1 Answer

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

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

Apr 18, 2014 | Cars & Trucks

1 Answer

Short on eng-1 fuse cant find problem

This is commonly caused by a shorted fuel pump.

Aug 23, 2012 | 1995 GMC Sierra C1500

1 Answer

Headlights, both low and high beams won't come on

Start, check for 12Vpwr. eng. comp fuse box 30A runs into the multifuction switch.
Head light sw. runs into the multifunction switch.
out of multi sw. pass. comp. fuse box 20A # 38 for high beam
out of multi sw. two 10A fuses #10 & #4 for low beam
make sure you grounds ar good G102 & G103
G102 LH front eng. comp.
G103 RH front eng, comp.

Sep 12, 2010 | 2001 Ford Mustang

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

96 chevy silverado problem with ENG 1 and TRANS fuse

its probly been put in by a dealer at one point to make the trans shift on alot of cheavy vans they did this because the wire breaks in the loom and its an easy way to fix it

Nov 26, 2009 | 1998 Chevrolet Blazer

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

Related Topics:

198 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

75822 Answers


Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

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

Answer questions

Manuals & User Guides