Timing and Firing Orders

Firing order refers to the order of power delivery of the cylinders in an engine. Timing and firing orders both contribute to the engine’s fuel economy, power, and longevity. Achieving the proper timing is critical in the engine’s performance.

8,588 Questions
Timing and Firing Orders
Ford Windstar

What is the firing order on a coil pack and cylinders for a Windstar?

Firing order and cylinder numbering - all 3.0 and 3.8 engines:

Firing order:


Cylinder numbering:

  • Windshield side



    Frt. Of vehicle

Coil numbering:

    • --4 PIN--


      --1--- 2--- 3--


      --5--- 6--- 4--


  • NOTE the irregular sequence on the 5-6-4 side. Weird, but that's the way it is.

Motor: in front from drivers side (battery) going left order is 6-5-4 in back from drivers side (battery) going left is 3-2-1

Coil bank: From front to back, driver side (battery) 3-2-1 From front to back, opposite side, passenger side, 4-6-5 <-- note the odd sequence.

Timing and Firing Orders
Ford Taurus

What is the cylinder layout and firing order for Ford Taurus 3.0 and 3.8 engines?

Ford settled on uniform firing orders covering many many years of vehicles:

2.5L Engine: 1-3-4-2

V6 3.0, 3.8: 1-4-2-5-3-6

Taurus SHO V-8: 1-5-4-2-6-3-7-8

V6 Cylinder numbering:

1 - 2 - 3

4 - 5 - 6

(Front of Vehicle)

The coil pack looks like this

--4 pin--


--1--- 2--- 3--


--5--- 6--- 4--

----------------- Coil: with the connector positioned in the lower right hand corner, the upper row from left to right is: 4-6-5. The lower row is 3-2-1. ---- == == * http://autorepair.about.com/library/firing_orders/bl-ford-firing-02.htm

* http://autorepair.about.com/od/enginefiringorders1/ == == ---- The distributor cap should have a number one stamped on it indicating which one is number one. if not you should go and get a ford factory cap and it will tell you. Alternatively, the distributor has 2 screws to hold it down - starting from the back screw to the right going clockwise is 3-5-2-4-1-6 ---- * To aid in installation and avoid confusion, remove and tag the spark plug wires one at a time.

* Use di-electric grease on the plug wires to help keep them from sticking for future ease of changing

* A bit of anti-seize compound on the plugs - again to avoid future problems

The firing order is Cylinders 1-4-2-5-3-6 ---- Change one - AND JUST ONE - spark plug wire at a time. Route the new wire EXACTLY as you took the old one off. Shouldn't take you more than 10 - 15 minutes. (must be referring to the Vulcan engine ;)) 1,4,2,5,3,6 Look here for Taurus / Sable firing orders: http://autorepair.about.com/library/firing_orders/bl-ford-firing-99.htm 1,4,2,5,3,6 the firing order is 1,4,2,5,3,6 and the cylinders are numbered 1-3 up the back side starting at the belt area, and 4-6 are up the front side, starting at the belt area. yes. go to your local autozone and buy a haynes repair manual. it will give u the firing order and anything else you need to kno. 1 - 4 - 2 - 5 - 3 - 6

firing order is 1-3-4-2. fairly certain on that.

1 - 4 - 2 - 5 - 3 - 6

Timing and Firing Orders
Ford F-350

What is the Ford 5.8L firing order?

1 - 3 - 7 - 2 - 6 - 5 - 4 - 8

The distributor rotor turns COUNTERCLOCKWISE

The marked # 1 position on the distributor cap faces to the REAR and slightly towards the drivers side

The engine cylinder / spark plug locations are numbered :


4 - 8

3 - 7

2 - 6

1 - 5


Timing and Firing Orders
Ford Expedition XLT
Ford F-150

What is the firing order for a Dodge 318 or 5.2L?

The firing order for a Dodge 318cid/5.2L is 1-8-4-3-6-5-7-2 clockwise rotation.

Cylinders are numbered like this.

Pass side 2-4-6-8 front to rear.

Driver side 1-3-5-7 front to rear.

The firing order is probably forged into the intake manifold. Number one tower on the distributor cap is the one facing the number one plug or the driver-side headlight.

Distributor rotor at Number 1 plug terminal points to front intake bolt on left side of engine.

Answerit should be cast into your intake manifold. Answerfireing order is 1,8,4,3,6,5,7,2 distributor rotation is clockwise The link below will answer your question:
Timing and Firing Orders

What is the firing order for a Dodge 5.9L V8?

This is the firing order of a 360 / 5.9Lthe firing order is 1-8-4-3-6-5-7-2

Pass side 2-4-6-8

Driver side 1-3-5-7

Clockwise rotation on the distributor.


1-8-4-3-6-5-7-2 clockwise rotation


Fuel and Engines
Timing and Firing Orders

What can cause a car to backfire?

Bad fuel or incorrect timing and/or weak spark or other component in secondary ignition system.

usually late ignition timing could cause this or an excessive amount of fuel in the exhaust system.

backfire can be caused by choke not shutting off completely, also could have a bad distributor cap, bad spark plugs, bad ignition condensor, bad plug leads, or to much fuel getting to carburetor system

Consider getting yourself a service manual as it contains many troubleshooting for your car. Comes very handy sometimes.

Can also be caused by crossed spark plug wires meaning they are not connected in the proper order


Listen to the Signs of the Car talking to you,

Is the Backfire coming from the Tailpipe area or the Engine Compartment area?

Signs of backfire can be caused Vacuum Leak, in and around the Intake Manifold Base Gasket areas, and the Carb. Base or Throttle Body Base, and in any of the many different

Vacuum hoses/lines depending on your make or model, "Use Caution with what you use to seek out the Vacuum leaks, as many aresol base products contain a petroleum base

which can cause severe flash fires,

( especially on and around HOT Engine Parts & Faulty or Loose Plug wires )

in Running Conditions.

Always RememberSAFETY FIRST,You want to drive it after you fix it,"NOT look a pictures of its chard remains,in a Hospital Burn Ward."

Be Safe Now / Cruise Longer

A car backfires because unburned fuel is getting to the muffler. The heat of the exhause system causes the fuel to combust, thus a backfire. I have just been told that the rubber on my exhaust has split - could this be why the car would backfire? I have heard something about air getting into the exhaust could cause a backfire? back fire can be caused by different faults. first is to much fuel because of worn carburetter, or wrong adjusments on carburetter. choke sticking will cause backfire. timing be out of adjustment will cause backfire exhaust leak can cause backfire. bad spark plugs, or plug leads , distributer cap worn of cracked will cause backfire as for fuel in muffler, if it combusted in muffler , the muffler would split open it is not that. and i dont know of any rubber on an exhaust that would take the heat aexhaust manifold gaskets could be problem but if they were rubber they would melt \ is it good or bad to have backfire It can also be done with intentional modification, such as done in ''Keeping Up Appearances'' British sitcom. A fuel line and an oxidizer line are added to the muffler with a manual rubber bulb pump added to the line as the ''backfire button.'' At a point before entering the muffler, the lines have a pair of backflow valves to prevent the flame from racing into the mixture tanks. Squeezing the bulbs dispense a mixture of pure alcohol and an oxidizer into the muffler to create a reaction. For Onslow's car in the TV programme, copier toner was squirted in the tailpipe for a heavy soot effect on the backfire command. Having a car backfire can shake off any parts that aren't bolted completely, and can cause the engine to stall because the pressure of the backfire can temporarily disrupt the exhaust release from the engine. Besides, it would spook horses, cows, or anyone not used to loud noises. So having the car backfire down a Harlem road won't have the same effect, as a car backfiring down a rural city road.

Timing and Firing Orders

What is meant by 'chronological order'?

1. An arrangement of events in time. 2. A record of events in the order of their occurrence.

Mercury Sable
Timing and Firing Orders

What are Mercury Sable cylinder numbers and firing order?

Ford settled on a single firing order for v6 engines covering many many years of vehicles: 1-4-2-5-3-6

Cylinder numbers:

1 2 3

4 5 6

(Front of Vehicle)

Coil numbering:

1 2 3

4 5 6

(Front of Vehicle)

With the connector positioned in the lower right hand corner, the upper row from left to right is: 4-6-5. The lower row is 3-2-1.

More resources
  • http://autorepair.about.com/library/firing_orders/bl-ford-firing-02.htm
  • http://autorepair.about.com/od/enginefiringorders1/
Distributor CapThe distributor cap should have a number one stamped on it indicating which one is number one. if not you should go and get a ford factory cap and it will tell you.

Alternatively, the distributor has 2 screws to hold it down - starting from the back screw to the right going clockwise is 3-5-2-4-1-6

Hints & Tips -
  • To aid in installation and avoid confusion, remove and tag the spark plug wires one at a time.
  • Use di-electric grease on the plug wires to help keep them from sticking for future ease of changing
  • A bit of anti-seize compound on the plugs - again to avoid future problems

the distributer cap has a middle terminal, that middle terminal goes to the terminal on the coil via spark plug wire.


Timing and Firing Orders
Dodge Dakota
Ford Explorer XLT

What is the firing order of a 4.0L OHV - 4.0L SOHV - 5.0L 1991 through 2007 Ford Explorer all models?

Converter for a 1992 Ford F150 transmission

Timing and Firing Orders
Timing Belts and Chains

How often to change timing belt on a 2002 mistubishi diamante?

Replace every 60,000 miles. This is an interference engine and as such if they belt breaks you will have serious engine damage.

Timing and Firing Orders
Ford Expedition XLT
Ford F-150

Firing order for a 1995 ford f150 starte 6?

The spark plug firing order for the 4.9 L ( 300 cubic inch ) straight 6 is : 1 - 5 - 3 - 6 - 2 - 4 , the distributor rotor turns CLOCKWISE The distributor cap is installed with the marked # 1 position facing away from the engine

Distributors and Distributor Caps
Timing and Firing Orders
Ford Aerostar XL

What is the firing order for a Chevrolet 454 engine at the distributor is number 1 before or after the power tach wires?

Chevrolet Firing Order 18436572

Timing and Firing Orders
Honda Accord
Timing Belts and Chains
Honda Accord LX

How do the timing marks align on a 1986 Honda Accord?

Buy the repair manual for the car. It will pay for itself quickly.

1) Rotate crankshaft to align the flywheel pointer to TDC of the No. 1 cylinder compression stroke.

2) Make sure timing pointer must be aligned with the white mark on the flywheel; the cam pulley must be set so the small dot or the word UP is vertical and the marks on the edges of the pulley are aligned with the surface of the head.

3) Fit the belt to the engine and slide it onto the cam pulley. Loosen the adjusting bolt slowly, allowing the adjuster to move against the belt. Tighten the adjuster bolt temporarily.

4) Install the lower timing belt cover.

5) Install the crankshaft pulley and key.

6) Adjust the timing belt tension. Loosen the adjusting bolt. Rotate the crankshaft counter clockwise until the camshaft pulley has moved 3 teeth. Tighten the adjusting bolt to 31 ft. lbs

7) Install the water pump belt and pulley, drive belts

8) Install upper timing belt cover and valve cover.

9) Start the engine, allowing it to idle. Listen carefully for any indication of the belt rubbing or slapping the covers.

Timing and Firing Orders
Ford Probe

What is the firing order on 93 ford probe 2.0 liter 4-cylinder?

Click the link

Timing and Firing Orders
Dodge Power Wagon
Ford Expedition XLT

How do you find the firing order for a 351 v8?

On ALL 351 Ford V8s, regardless of year and engine family, the firing order is 1-3-7-2-6-5-4-8. The distributor spins counter-clockwise and from above the engine, the cylinders are numbered 1, 2, 3, 4 on the passenger side from front to back and 5, 6, 7, 8 on the driver side from front to back.

I will try to explain in the simplest way. a) You need to know the cylinder nos first. Then Follow the spark plug lead from plug towards the distributor cap, mark that # on the distributor cap. b) next take off the distributor cap. c) rotate the engine slowly in correct direction (in which your engine rotates when it is running). d) now the rotar in your distributor with rotate too. Observe the order in which it passes by the spark plug lead. This is your firing order.

Sometimes it is cast right in the block of the engine in letters. Sometimes it is in the owners manual. It is usually in a shop mechanic book. You can also find your particular order online by make and model and year.

99 Mercury Mistake firing order is: 1-2-3-4 facing engine left to right on coil: top left 1 top right 3 bottom left 4 bottom right 2

look on thetop of the intake manifold

it's always there number hyphen

number hyphen so on

its not always there... but some times you get luck with that...

If you don't want to buy a manual for your vehicle which you can get at most auto parts stores now for around $9-$15, Most public libraries carry these books on the shelf or for those without home internet service, you can use theirs either free or very cheap.

Check out the following website link:


This shows the engine firing order for each spark plug. The newer Distributor Caps have the spark plug number, so if you know which is number one on the distributor cap and on the engine, and so on, you are good as gold.

Also, when removing the existing wiring, you should also replace the distributor cap and rotor. It is usually a good idea every 50,000 miles.

The firing order of a 1992 Ford 351 V8 is as follows: Firing order is 1-3-7-2-6-5-4-8. On the distributor,it goes counterclockwise (CCW). Passenger side is cylinders 1-2-3-4 (front to back). Driver side is 5-6-7-8 (front to back).

If you live in an area that has a local autozone you can call them up and they can give it to you. If you do not leave me your vehicles make model year and engine size and i will get it to you as fast as i can.

It is almost always stamped on the top of the intake manifold or on the engine block itself.

The quickest way to find the correct firing order without looking around the engine (especially dirty and oily engines) is to call your local auto parts dealer (Autozone, NAPA, etc.) and ask them. All you need is the general engine and car specs.

I have a 1993 Saturn SC2 Coupe, and got my wires mixed up when I was replacing them. I called AutoZone and the guy told me that the firing order is 4-1-3-2. I installed the wires in this order, started up the car, and it idled VERY roughly. I immediately shut it off and called a local Saturn dealership. The guy in the service department told me that the correct firing order is 4-1-2-3. I reconnected my wires and it started right up and idled perfectly. A word of caution: many times "the guys" at your local auto parts stores can point you in the right direction, but they are not necessarily the experts. If you ever have questions like the firing order, go straight to the source. Call the experts at the dealership for your car's make.

Timing and Firing Orders
Timing Belts and Chains

How do you know if your car needs a new timing belt?

The manufacturer's mileage recommendation has been met. Something like 60 to 100 thousand miles. The appearance of the belt won't usually change, and an inspection won't tell you anything.

If the belt breaks, there's a good chance the engine will be severely damaged. The damage is instant; the valves hit the pistons and bend or break. So unlike a lot of maintenance jobs, you don't want to wait for it to fail. It's not like the serpentine belt (the one you can see.) If the serpentine belt fails, the car won't necessarily be damaged right away (but it might overheat, the battery won't charge, and the power steering will be manual).

Timing and Firing Orders
Ford Expedition XLT
Ford F-150
Tractors and Farm Equipment

What is the firing order of a 504 Cummins engine?

Trick Question - There is no Firing ORder since its a Diesel Engine! Ha! Actually the firing order is 1-5-4-8-6-3-7-2 for a right hand rotation engine. All engines have a firing order, diesels fire from compression versus spark for gasoline/propane and the like

if there's no firing order, the engine will be as useful as a boat anchor.

Timing and Firing Orders
Ford E-150 Van
Ford F-150

What is the firing order for a 1995 Ford F-150 5.8L?

Spark Plugs and Wires
Timing and Firing Orders
Ford Explorer Eddie Bauer

How do you remove a stuck spark plug?

I rewmoved a stuck plug on a dodge van 318 fuelinjected motor by using a socket that was 1 mm to small for the plug (21mm) and a can of air for dusting off computers. I turned the can sideways and frosted the plug then pounded the socket on and used a breaker bar ever so gently about three times and presto it tuned, hard at first then I pulled of the small soket and used the regular one no problem.

I have never heard of that, quite frankly. If the threads toward the piston are damaged, they wouldn't have gone in to begin with. (It sounds like the plug is coming out part way and then meeting resistance of bad threads or something.) Did a timing belt get off and let a piston smash a plug? The plug hole can be rethreaded if it's not too bad depending on the head material. I think I'd call my buddy at the head rebuilding shop.

My father, a heavy duty mechanic, says: "clear the area, use a propane torch to heat the head around the plug, try to take it out while the plug is cooler than the head". I'd suggest keeping a fire extinguisher on hand, though. My father is a little crazier than I am :)

I continually soak it in a high quality penetrating fluid. And turn it out a little and back in a little, back out a little and back in a little. Eventually, with a little skill you might get it without breaking. You may end up pulling the threads out of the head, but you can insert a heli-coil and get your new plug back in. May end up pulling the head if it doesn't go so well.

I recommend you go out and buy some Break Away and let it soak for about 15 to 20 min. Then work it back and forth until it comes loose.

Be sure you don't try the propane torch suggestion if you've already used a penetrating oil (or spray) of any sort-- you'd *definitely* need that fire extinguisher! It would be safer to apply something cold directly to the plug if you wish to take advantage of the same principle of differential thermal expansion/contraction, but I can't vouch for this technique as I've never used it. (The metal presumably conducts heat (and cold) better than the ceramic plug, so this reverse technique is doubtful.) Personally, I vote for the repeated applications of penetrating oil (let it soak) combined with *patient* back-and-forth screwing and unscrewing as recommended above. (And in the future use an antiseize compound on the threads of the new plugs and change them more frequently!--They're cheap!)

In regards to using "anti-seize" compound, it's NOT a good idea to use this. It will reduce the friction your plug needs to torque the plug correctly (9 ft lbs. usually, check manuals). If you are unfamilliar with anti-seize compound or toque wrench usage, it is best to dry install. Hand tighten, then tighten a quarter turn after that. (aluminum heads only) As far as removing the spark plug, it's best to take it to a automotive shop. To do it yourself (depending if the spark plug is still whole or just the outer threads remaining in the head), PB Blaster is good to help "loosen" the grip of the reminant plug. You will need extractors and an extractor T-handle. Best bet though is to take it to a shop, as they are responsible for any further damages resulting from extraction. Shops are pretty darn good at this practice. Well worth the money and hardship. Appox. price range is 50-150 dollars.

First--I agree with the spray it and then rock it back and forth crowd. I'll go both ways on the anti-seize: You CAN get away without it (just don't overtighten or go too long between changes). BUT, you can also use it; just don't use too much. It does make it easier next time.

Second--JUST TO MAKE SURE--no one has mentioned/asked are you using a spark plug puller? There are specialty tools for this; they come stock w most ratchet sets. They have the rubber boot inserted to help not damage the plug and to cushion the application of force. USE ONE OF THOSE. Now for the upsell--they also have specialty tools (cheap) for getting the plug out that are like a wrench w a knuckle so you can twist better without having just a straight shot only. Specialty tools are not always necessary--but they are always helpful. You local stores have these--just ask. Take a slow walk through the tool aisle.

Heat could be the answer but I don�t recommend the blow torch idea. Try running the engine up to normal operating temperature then unscrew the plug 1 /4 turn. Re-tighten it a bit less than 1 /4 turn and then unscrew it a bit more. Repeat this until the plug is free. If the plug is simply too tight or snaps there used to be a "helicoil" kit available. Admittedly it's been a few years since I quit the trade and I don't know if they are still produced. But using these kits involved removing the head, drilling out the stuck plug, tapping a new oversize thread and inserting a "helicoil".

Some times being at a bad angle can make a big difference. If your at a bad angle with a standard ratchet try a flex head ratchet with a long handle (can also help in cramped areas) and/or possibly a long t-handle. Like everyone says above let it soak with penetrating oil like Liquid Wrench. I got mine to break loose this way. I was afraid to put too much force on it, but if you don't try hard enough you prolly won't get it/them loose. I also suggest using anti-sieze when reinstalling.

Auto Parts and Repairs
Spark Plugs and Wires
Timing and Firing Orders
Toyota Tacoma

Change spark plug wire it broke off?

Did it break close to the boot (point closes to the plug)? Be more specific with your question.

Timing and Firing Orders

What determines the final firing order on a normal car engine?

The way the crankshaft is built. Which controls the order that the pistons move up and down.

Rover 400 Series
Timing and Firing Orders
Rover Metro

Rover k series firing order?

1 3 4 2

Timing and Firing Orders
Nissan Maxima

What is the firing order for a 1996 Nissan Maxima?

Easy to remember as it is 1-2-3-4-5-6

Distributors and Distributor Caps
Timing and Firing Orders
Chevy 350

What is the firing order for a Chevy 350?

The order is on the stock intake manifold. It is 1,8,4,3,6,5,7,2

1,3,5,7 is on the left bank(driver side) and 2,4,6,8 is on the right bank. The distributor rotates clockwise.

Distributors and Distributor Caps
Timing and Firing Orders
Dodge Ram

Where is the number one cylinder on the distributor cap of a dodge 383 engine?

Drivers side front to rear is 1-3-5-7. Passenger side front to rear is 2-4-6-8. Rotor turns counterclockwise. Firing order is 1-8-3-4-6-5-7-2


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