1991 GMC Safari Logo
Posted on Jun 09, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Spark plug wiring on distributer cap on firing order

1991 gmc safari van with a 4.3 engine is not firing properly. wires accidently got crossed

1 Answer

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Master 1,305 Answers
  • Posted on Jun 09, 2009
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: May 08, 2009
Answers
1305
Questions
0
Helped
596066
Points
4327

Here is the diagram for your engine...
click here


Follow the locations on the cap illustration..

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
3answers

2003 gmc Sonoma SlS change spark plugs and wires, it back fires now??

You have a plug wire crossed check the firing order, you can look on the net for your make, model and engine size to locate the correct order. I hope this helps. Take Care.
0helpful
1answer
0helpful
1answer

We put in new spark plug wires and distributor in my 92 gmc safari van. The van will not start so we want to verify that we put them in their proper order.

Answer to firing order

Firing order for 1992 chevy astro 4.3L, From front of engine driver's (left) side No.1, to right front, No.2. left side middle cyl. No.3. Right side mid. cyl. No.4. Rear cyl. left side, No.5. Rear rihgt No.6. On the Distributer cap from No.1 (should be marked) plug tower order is 1,6,5,4,3,2.


Read more: http://wiki.answers.com/Q/What_is_the_firing_order_for_a_1995_Chevy_Astro_4.3L#ixzz1OeLSDOuP

1helpful
1answer

1991 4.3L GMC Jimmy S-15 will not start. Turns over, but does not start. Replace spark plugs and wires, ignition coil, module checked good. The plugs are gettin fire but not sending it to the motor?

You need 3 things.
Compression
Good hot blue spark to all plugs.
Good gasoline and proper fuel pressure. 13-13.5 lbs on your TBI
If you have all 3 then move on to injector pulse to both injectors.

Keep me posted and recheck your spark plug wire to make sure they are not crossed. firing order 1-2-3-4-5-6 cylinder # passenger side 1-3-5 front to back. cylinder # drivers side 2-4-6 front to back
distributor #1 is located at the 7 o"clock and rotates clock wise so next distributor post on the right working clock wise is #2. Good luck and hope this helps.
7helpful
1answer

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.

db45c9c.jpg

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

cf6af5d.jpg

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

5c33822.jpg

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

cae855e.jpg

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

9674e44.jpg

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.
6helpful
1answer

I replaced my spark plug wires on my 1996 chevy truck. may have crossed one,need a diagram from the spark plugs to the distributer cap.

Since you didn't state whether it is a V6 or V8, I'll give you both.

V6 -4.3Liter
Firing Order is 1-6-5-4-3-2
Distributor rotor turns Clockwise
Number 1 spark plug tower on distributor cap, faces the front of the engine.

->Drivers side, spark plug order in engine, starting from the Front going back:
1-3-5
->Passenger side, spark plug order in engine,
starting from the Front going back:
2-4-6

If it's Electronic, the distributor cap has a Left side, (Drivers side), and a Right side, (Passenger side)
Starting from the Front, going back on the Left side,
3-1-5
Starting from the Front going back on the Right side,
2-4-6

V8-5.0, 5.7, and 7.4Liter
Firing Order is 1-8-4-3-6-5-7-2
Distributor rotor turns Clockwise
Number 1 spark plug tower on distributor cap,
faces Front, towards the Drivers side.

Electronic distributor cap has two sides. Drivers, (Left), side and Passenger, (Right), side.
Starting from Front going back on Drivers side,
1-7-3-5
Starting from Front going back on Passenger side,
8-2-4-6

Spark plug order in engine, starting from Front going back, Drivers side:
1-3-5-7
Spark plug order in engine, starting from Front going back, Passenger side:
2-4-6-8
0helpful
1answer

No spark to plugs

Is it the firing order tht u require or?
If it's the firing order and if it's a 4 cylinder engine thm its 1-3-4-2 and remember the distruibutor rotor travels anti-clockwise.
Good luck.
0helpful
1answer

Spark plug wiring diagram

3.9L V6 Engine. Engine Firing Order: 1-6-5-4-3-2. Distributor Rotation: Clockwise.............did i guess the right motor? let me know/rate me
Not finding what you are looking for?

771 views

Ask a Question

Usually answered in minutes!

Top GMC Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

john h

Level 3 Expert

29494 Answers

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

Answer questions

Manuals & User Guides

Loading...