1986 CHEVROLET BLAZER FIRING ORDER PROBLEMS

  • Tiny
  • 1986 chevrolet blazer SUV
  • 1986 Chevrolet Blazer
  • 2.8L
  • 6 CYL
  • 4WD
  • automatic
  • 230,000 miles

When I start the truck it started to back fires and shakes real bad and turns off I think my spark plugs wires are placed wrong. Or my have the firing order wrong some one place help

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Sunday, March 9th, 2014 AT 7:36 PM

10 Replies

  • Tiny
  • CJ MEDEVAC
  • Expert
  • 9,349 posts

ARE YOU SOMEWHAT MECHANICAL?

ARE YOU ABLE TO REMOVE SPARK PLUGS AND PUT 'EM BACK?

HAVE YOU TAKEN THE DISTRIBUTOR OUT. HIDING INFO, MAKES IT HARDER TO ASSIST YOU!

SORTA. WHAT EXACTLY HAVE YOU OR THE "OTHER ONES" DONE TO GET YOU TO THIS POINT?

KNOWING SOME (ALL) OF THIS MIGHT GIVE ME A STARTING POINT

THE MEDIC

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Sunday, March 9th, 2014 AT 8:02 PM
  • Tiny
  • 1986 chevrolet blazer SUV
  • Member

Yeah I took it out but forgot to remember the firing order how would I be able to fix it? Also I might have arranged the spark plug wires wrong and don't know the order it was me first time trying it.

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Sunday, March 9th, 2014 AT 8:50 PM
  • Tiny
  • CJ MEDEVAC
  • Expert
  • 9,349 posts

IF YOU TOOK IT OUT......AND DID NOT STICK IT BACK IN 100% EXACTLY HOW IT CAME OUT (EZ TO GET IT WRONG)......YOU WILL NEED TO LISTEN TO THE DIFFERENT WAYS OF REPLACING IT RIGHT

I'M SENDING "DAVID AND CHAD" TO GIVE YOU A HAND

CLASS 1

http://www.youtube.com/watch?v=5a2X9mSSlQY

CLASS 2

http://www.youtube.com/watch?NR=1&v=FHX1yXVyIMg&feature=endscreen

WATCH THESE A FEW TIMES, THEY ARE VERY HELPFUL

I THINK I GRABBED YOU THE CORRECT DIAGRAM AT THE BOTTOM

REMEMBER # ONE's POSITION ON THE DISTRIBUTOR CAP MAY VARY DEPENDING ON HOW YOU INSTALL THE DISTRIBUTOR

WHEREVER #1 WINDS UP---THAT IS THE STARTING POINT FOR THE SEQUENCE

LISTEN TO DAVID AND CHAD SEVERAL TIMES BEFORE YOU ACT!

KEEP ME POSTED

THE MEDIC

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Sunday, March 9th, 2014 AT 9:14 PM
  • Tiny
  • 1986 chevrolet blazer SUV
  • Member

Thank you I hope this works and I will be sure to keep you posted

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+1
Sunday, March 9th, 2014 AT 9:24 PM
  • Tiny
  • 1986 chevrolet blazer SUV
  • Member

Dose it matter if the spark plugs wires are placed in the wrong order?

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Sunday, March 9th, 2014 AT 9:45 PM
  • Tiny
  • CJ MEDEVAC
  • Expert
  • 9,349 posts

VERY MUCH SO----CLICK ONTO MY DIAGRAM

AS PER CHAD AND DAVE, # 1's POSITION MAY VARY

THE MEDIC

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Sunday, March 9th, 2014 AT 9:50 PM
  • Tiny
  • 1986 chevrolet blazer SUV
  • Member

Not in wrong firing order but, just the sparke plug wires in general?

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Sunday, March 9th, 2014 AT 9:51 PM
  • Tiny
  • CJ MEDEVAC
  • Expert
  • 9,349 posts

YOU MEAN THE ENTIRE WIRE FROM BEGINNING TO END, GOT SWAPPED FROM #6 TO # 3BUT IS STILL HOOKED UP CORRECTLY IN FIRING ORDER?

THE MEDIC

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Sunday, March 9th, 2014 AT 9:55 PM
  • Tiny
  • CJ MEDEVAC
  • Expert
  • 9,349 posts

MIDNIGHT HERE. BEDTIME. SEE YOU AFTER 1800 HRS TOMORROW

THE MEDIC

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Sunday, March 9th, 2014 AT 10:00 PM
  • Tiny
  • hmac300
  • Expert
  • 44,316 posts

After checking firing order scan for codes and check fuelpressure with a gauge autoparts rent it

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Tuesday, March 11th, 2014 AT 6:23 AM

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