20 Most Recent 1986 GMC K1500 Questions & Answers

there is a site www.knfilters.com that make such equipment for v8 engines in particular K&N 59-3364 would probably fit
besides that go google and type in--- flame arrestors for air inlet--- and there is plenty of information on uses types etc
the idea is to have the ignition firing order right, the ignition timing correct (12 degrees btdc for chev)and the correct air/fuel mixture ratio and back firing will not occur unless you have a really rad**cal cam that is not correctly timed and the engine rpms are too low for the cam

1986 GMC K1500 | Answered on Aug 13, 2016

Moisture number one enemy. Check your distributor cap if wet spray it with wd-40. and dry it.

1986 GMC K1500 | Answered on Jan 19, 2015

Check your dimmer switch. When a dimmer switch goes bad only one set of lights work being either the bright or the low beams.

1986 GMC K1500 | Answered on Jan 19, 2015

check your fuses and if all good replace headlight switch

1986 GMC K1500 | Answered on Feb 20, 2014

check bulbs. highly un-lickely that all bulbs would go out like that but still a possibility. could also be a bad ground wire.

1986 GMC K1500 | Answered on Oct 27, 2013

replace dimmer switch.

1986 GMC K1500 | Answered on Oct 27, 2013

what wires ??????

1986 GMC K1500 | Answered on Jan 13, 2013

Step 1:


Step 2:

for a diesel just remove 1 battery for gas motor

1986 GMC K1500 | Answered on Jan 13, 2013


It can be faulty headlight switch or issue with its wiring. Or its faulty head light fuse.


To troubleshoot the issue i suggest you few help links with appropriate solution. So you can follow the test and confirm what exact problem is there in your case of headlights not working:-----

Click the link below: -----

All headlights not working?



Working of Headlight switch?
Both headlight bulbs blow together?

Car headlight bulbs don't last long?


2007 Dodge Caliber: Low Beam Headlight Not working



2003 Toyota Camry: Headlights Work Intermittently?



Chevy Tahoe: Low Beam Lamps are not working?



2001 Chevrolet Tahoe: Headlights not coming ON?



2004 Dodge Ram: High Beam Light is DIM?



2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?



Low beam headlights Modification?


How to Replace a Headlight


How to Replace a Headlight Bulb


How to Replace a Headlight Switch


How to Replace a Headlight Assembly


How to Replace a Park Light Assembly



Low beam headlights Modification?



Headlight Assembly Removal On Honda Accord



Honda Headlight Assembly Removal


How to Replace a Headlight Door



How to replace HID headlight bulbs for lexus 400h?



These will help.


1986 GMC K1500 | Answered on Nov 28, 2012

After you remove the hub you then need to remove the inner gear and spring, this is done by removing the ring, look at the front edge of the gear, you will see ring, use small screw driver or pick to remove, it just sits in groove to hold hub gear and spring in place, when ring is removed then slide the rest of the parts to hub out, note some model will have a small star screw holding center gear in, remove screw and pull center gear out,

Next you will then see nut , these nuts are not too tight, you can use a chisel and hammer to break free if you do not have socket, after the first nut is removed you will then see a washer that has many small holes, that washer is a lock washer, it locks next washer in place , remove washer and you will be at last nut, take a look at the nut , the axle tube will have a slot, make sure there is not a slide pin going into nut to lock it, some models have a lock key, if you do then remove it with a magnet, you may need to wiggle nut to release pressure off the key, if you do not have the lock key then just remove the nut, take note the inner nut has a pin on the front face, when installing you will need to line it up to get lock washer on, here is a diagram to help you , good day and again these nuts are not tightened alot or bearing damage will occur just snug and chisel and hammer will loosen them. please let me know the outcome.9_2_2012_6_30_29_pm.gif

1986 GMC K1500 | Answered on Sep 02, 2012

I bet you have a electric fuel pump?? If so, I'd be looking for a loose or broken wire/ bad connection first.
Next check the fuel filter, especially if it's not been changed.
You can also add some lucas (Not just Dry Gas) to the fuel tank with a mix of fresh gas - as it may be a piece of dirt lodging in the injector.
best regards

1986 GMC K1500 | Answered on Sep 19, 2011

On some models of general motors starter shims are required to maintain
the recommended clearance between the starter and flywheel.
If not, then the starter will hang on the flywheel after motor is started and
damage it (The teeth are bottoming out when this occurs). They sell starter shims at
the auto parts store.
Hope this helps.

1986 GMC K1500 | Answered on Mar 21, 2011

not sure what you mean by ALL the bolts. there are only two bolts in the starter itself and they just retain the starter.

1986 GMC K1500 | Answered on Jan 17, 2011


yes this is dangerous, any heated wires so close to the fuel can be deadly. if they are melting then either the wrong fuse size has been used and this is overcharging the thinkness of the wires, thin wires require low amp fusees where as thicker wire higher fuses. the other issue is there is a possibility of overcharging or two wires contacting each other, this coaul destroy all the electric on the car and would be very costly to repair, I would be looking at wires contacting either each other or the car body "red" positives touching the metal work.

Get back to me with more info



1986 GMC K1500 | Answered on Dec 31, 2010

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