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Fireing order for chevy van g20 4.3 an where number on on cap

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1995 Chevrolet G 20 Van 4.3 liter V-6 VIN "Z"

fireing order for chevy van - zjlimited_86.gif

Hope helps.

Posted on Dec 29, 2010

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Firing order for 95 chevy sports van g20 4.3L V6


if it is a vortec motor the wire numbers are on the cap 3 on one sid 4 on the other one of them being the coil wire

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Firing order 1985 350 GMC van


1 8 4 3 6 5 7 2. Odd numbers run down drivers side of the van, even numbers run down passenger side. On the distributer cap 1 is the front right if you're facing the vehicle from the front, go clockwise from there.

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Where does the number 1 plug wire go on the dist cap for a 87 chevy van with an hei system


Insert the number eight spark plug wire next and route it to the corresponding cylinder. For this example we use a Chevy small block firing order, which is: 1, 8, 4, 3, 6, 5, 7 and 2, rotating clockwise. The wires must connect to the corresponding cylinder numbers which are: left bank cylinders (viewing from the driver's seat) 1, 3, 5 and 7; right bank 2, 4, 6 and 8. Low numbers begin in the front of the engine.

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Need firing order and distributor order for 1995 chevy astro van 4.3 liter vortec


1-6-5-4-3-2
number 1 is the front Cyl on drivers side.
then it is #3 #5
Passenger side is #2 #4 #6
#1 on distributor cap is the front side of cap next
to the hold down screw clockwise side of the screw.
Firing order goes clockwise looking down on the distribuater.

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Where is the # 1 plug wire located on the distributor cap on a 3.4 chevy v6 1993 chevy mark3 van


To answer that question you need to follow the plug wire from the # 1 cylinder to the cap. #1 cylinder is the first cylinder located at the far from of the drivers side portion of the engine. (left side) The cylinders are numbered even and odd, so 1,3,5 left and 2,4,6 right. The firing order is also located on the intake manifold directly in front of the distributor.

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Firing order on a 305 on the cap. Got the wires all messed up...


This method is good for the firing order on all chevy small block v8 engines from 265 cubic inches to 400 cubic inches. This would include 265, 283, 305, 327, 350, 400 cu. in. chevy small block v8 engines.

Let's cover some safety concerns first. If you try to troubleshoot a mixed up firing order with the engine running, you could be in for a serious shock,.. literally. You can do it, with certain precautions, but you really don't need to check the firing order with the engine running. You definitely don't want to try checking the firing order if you are wearing any kind of pacemaker or sensitive electromechanical prosthesis. The voltage coming out of the ignition coil is in the thousands. Common sense dictates that you wouldn't stick a knife in an electrical outlet, so you wouldn't want to take chances with being shocked by the electrical discharge from your classic chevy's ignition coil either. See the diagram:


5d6424a.png

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.

On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.

Additional details HERE.

Hope helps (remmeber rated this).

Jul 12, 2010 | Cars & Trucks

2 Answers

I took of*** my spark plug wires working on my small block 350 pickup and I don't remember the the firing order to put the new wires back on. Is there a diagram anywhere or is it even that difficult to...


Next time number each lead before you remove it and no. the dissy cap as well

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.
On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.
See the diagram; Click to open a printable larger image in a new window. The firing order starts with the number one cylinder. We would connect the number one spark plug wire to the distributor cap terminal in the 6:30 position. distributor.pngSince the next cylinder in the firing order is 8 (passenger side rear), we connect the number 8 spark plug wire to the next distributor cap terminal (approximately 7:30 position) in the clockwise direction from number one. You need to be sure you continue the firing order in the clockwise direction around the chevy small block distributor cap from the last installed spark plug wire. Setting the rest of the firing order is just a matter of repetition. Be sure to count the spark plugs from front to back on each side of the motor to identify the correct cylinder number in the firing order.

Jun 21, 2010 | Cars & Trucks

3 Answers

I need a fire timing order for a chevy astro van v6


THE FIRING ORDER IS AS FOLLOWS : 1-6-5-4-3-2.
CYLINDER NUMBERS (front-to-rear) :
LEFT (driver side) 1-3-5
RIGHT (passenger side) 2-4-6

To set ignition timing, ensure that engine is at operating temperature, (190 degrees or above), bypass EST (electronic spark timing) by unplugging the single tan wire with a black stripe from the distributor. Ignition timing should be set at 0 degrees or TDC (top dead center). If not, loosen distributor hold down bolt and adjust, then retighten.

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1 Answer

I need a diagram of the firing order on an 81 chevy sport van with a 305 c-20


chevys firing order is 1-8-4-3-6-5-7-2- at front of engine number one cylinder is on drivers side

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Firing order is 1-6-5-4-3-2. Distributor cap should be numbered. Number one cylinder is front on driver's side (3 and 5 follow on same side). Number 2 is front on passenger's side (followed by 4 and 6).

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