Question about 1986 GMC S-15

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Odometer broke 1986 gmc s15 - 1986 GMC S-15

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: my 1986 gmc s15 will not stay started

Sounds like it only runs on starter fluid.sort of. Mine is an 84 with a carb. You may have a bad fuel injector or dirty at best. Have your checked for good spark or dist rotor pointing to #1 in dist cap at TDC. The timing chain may have worn and jumped a couple of teeth

Posted on Sep 26, 2009

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ZJLimited
  • 17970 Answers

SOURCE: firing order for a 1986 gmc s15

FIRING ORDERS

To avoid confusion, ALWAYS replace spark plug wires one at a time.

The most important thing to remember about the removal and installation of a distributor, cap or spark plug cable is that all wires MUST be labelled before they are disconnected. Keep in mind that these figures depict a firing order where the distributor cap terminals are relative to EACH OTHER only and they do not necessarily depict the tower positions in relation to the rest of the engine. This is true because any distributor which has been removed and reinstalled may have been installed with the No. 1 spark plug tower at any position (360 degrees) in relation to the rest of the motor, as long as the rotor aligned to the No. 1 tower when the No. 1 cylinder was at TDC of the compression stroke (valves closed, ready for the plug to fire). As long as the remaining wires were connected in the correct firing order sequence (depending on direction of distributor rotation) the engine will run. DO NOT EVER remove more than one wire from the distributor cap at a time unless you tag ALL wires and towers to assure proper installation.

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Fig. 1: 1.9L engine . Firing order: 1-3-4-2 . Distributor rotation: counterclockwise

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Fig. 2: 2.0L engine . Firing order: 1-3-4-2 . Distributor rotation: clockwise

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Fig. 3: 2.5L engine . Firing order: 1-3-4-2 . Distributor rotation: clockwise

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Fig. 4: 2.8L engine . Firing order: 1-2-3-4-5-6 . Distributor rotation: clockwise

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Fig. 5: 4.3L engine. Firing order: 1-6-5-4-3-2 . Distributor rotation: clockwise

I hope help you with this (remember rated this help) Good luck.

Posted on Oct 05, 2009

chitownbob45
  • 316 Answers

SOURCE: My 1986 GMC S15 will start and idle, but wont

fuel pump fuel filter?

Posted on Oct 05, 2009

ZJLimited
  • 17970 Answers

SOURCE: firing order diagram for 1986 GMC S15 2.8L

For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Posted on Nov 24, 2009

SOURCE: I need a diagram of

ATSG.Com

Posted on Sep 19, 2010

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1 Answer

I have a 1986 GMC S15 that will start and run, but won't stay running?


My first guess would be a very bad vacuum leak, second guess would be fuel starvation. Check hoses for cracking ,breakage, check fuel filters from tank to engine. GOOD LUCK FRIEND.

Apr 17, 2015 | 1986 GMC S-15

1 Answer

1986 gmc s15 jimmy wiring diagram needed


check for a earth fault from the dash to the chassis this my main suspect

Nov 29, 2012 | 1986 GMC Jimmy

1 Answer

Have a 1986 GMC S15 6cyl that at tmes will not do anything when I turn the key over and other times it starts right up. What could be the problem?


Do you get dash warning lights when you turn the key and no crank ?
One possibility is the ignition switch, another is the starter. If it has an automatic trans, there is a neutral safety switch to keep you from starting the engine in gear.

Jun 25, 2012 | 1986 GMC S-15

1 Answer

Hi guys i have a 1986 gmc s15 it cranks but wont start and now it **** fireing plz help


i would check to see if you are getting fire from the coil, if not, i would have the coil checked out , and if bad , replace it, "if you are still having problems with it not starting, then i would check the fuel pressure.

Feb 19, 2011 | 1986 GMC S-15

2 Answers

Firing order diagram for 1986 GMC S15 2.8L


For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Nov 24, 2009 | 1986 GMC S-15

1 Answer

Were is a 1984 gmc jimmy fuse box located?


the fuse box should be located near or behind the emergency brake, the panel should have one screw

Oct 29, 2009 | 1986 GMC Jimmy

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