1986 Suburban Electrical issue

100

Asked by Nov 19, 2014 at 09:13 PM about the 1986 Chevrolet Suburban K10 4WD

Question type: Maintenance & Repair

i have an interesting problem still. while under load ie headlights and blower the truck occasionaly shuts off, loses all radio presets and everything, have replaced batt , alt, starter, ignition switch, wiring from batt to starter , and starter to alt, also all ac/heater electronics, resistor and relay, and blower motor. headlight switch was also replaced. any help would be greatly appreciated .

1 Answer

60,095

This is a hard to answer this question,but i will say this,there is a short,if it only doe,s it under electrical load,i would start by checking the truck,s battery draw under this load,some suburban,s have to have a beefed up alternator,to tote it,s massive wiring system,may need to upgrade,the truck probably,has a 13.2 amp alternator,you can get one that has 14.3 amp,may help,and again this old of model there could be other wiring issue,s all so.

Your Answer

Add photo

Related Questions

  • 1986 suburban random failure 1 answer

    Hello all. I have a 1986 suburban that has an issue that while driving the whole truck shuts off engine and electrical. Resets radio and all lights go off. 15sec later all comes back up and starts...

    1986 Chevrolet Suburban K10 4WD

    -

    Maintenance & Repair

  • Why am I having so many challenges with getting my transmission fixed on my 1986 Chevrolet Suburban? 2 answers

    I've spent over $2500.00 within the past 3 months trying to re-pair, re-build, and replace my transmission. It started off with just a leak in my transmission; then began sticking and not shifting in...

    1986 Chevrolet Suburban

    -

    Maintenance & Repair

  • 2003 1500 suburban has electrical issues 1 answer

    The engine light is on but when you plug in the code reader , it appears to be unpowered , sunroof is unpowered and driver side heated seat will come on briefly then go out . Anyone know which fuse ...

    Chevrolet Suburban

    -

    Maintenance & Repair

  • 2003 Chevrolet Suburban 1500 LT electrical issue 5 answers

    When it rains my driver door ajar alarm goes off, the interior lights come on and go off, the driver side heated seat comes on and engine dies when idling. Any idea what may be the cause?

    2003 Chevrolet Suburban LT 1500

    -

    Maintenance & Repair

Search Chevrolet Suburban Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 880
#2 Eric Fritz
Eric Fritz
Reputation 850
#3 Neal Turner
Neal Turner
Reputation 750
View All

Related Models For Sale

Used Ford F-150
3,010 Great Deals out of 207,475 listings starting at $1,200
Used GMC Suburban
176 listings starting at $1,495

Used Cars For Sale

2017 Chevrolet Suburban For Sale
3,082 listings starting at $42,829
2016 Chevrolet Suburban For Sale
49 Great Deals out of 4,938 listings starting at $35,995
2015 Chevrolet Suburban For Sale
66 Great Deals out of 1,882 listings starting at $28,855
2014 Chevrolet Suburban For Sale
27 Great Deals out of 581 listings starting at $15,400
2013 Chevrolet Suburban For Sale
60 Great Deals out of 1,053 listings starting at $14,995