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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.

6,170 Questions

My 2003 Pontiac grand am check engine light began flashing yesterday after filling tank with gas. Any ideas or easy solutions?

The gas cap may not have been put back on correctly after you filled the tank. This can create a vapor lock which triggers that light to come on.

Give the gas cap a few right turns to tighten it & make sure you hear several "clicks". Then drive as usual for several miles and the check engine light may go out. If it doesn't, give your auto service center a call or make an appt. as soon as possible.

Hope this helps!

The vapor lock resulting from the improper cap replacement does not cause the light to flash. It sounds like a more serious problem. Normally these are resulting from clogged fuel filters or vacuum leaks in the line.

What is the firing order for a 1991 Ford Crown Victoria?

Answer1,3,7,2,6,5,4,8

The previous answer is only correct for the 351 which is a rare car.

The correct firing order for the 302 is 1,5,4,2,6,3,7,8

Where's the 1 plug wire on the distributor on a 305 V8 with coil in cap and is there a difference in firing order between 305 V8 and a high output V8?

there is no diffrents in the firing order. with the # 1 piston in the up and firing position, the distributer roter (where ever it may be at that time), place the # 1 wire over it and begain the process from there . most people preffer to have the roter pointing toward the # 1 cylinder, but it does not matter to me. remember that the piston has 2 up strokes intake/exaust so if your car trys to crank but does not, you are 180 degrees out make sure you get the right stroke GOOD LUCK

What is the firing order for a 1989 Chevy S-10 4.3 4x4?

I think it is 1-6-5-4-3-2. If the factory intake is still on the engine look on it the firing order is usually on it.

Need firing oreder and rotation on 87 ford ranger 2.9?

The spark plug firing order is ( 1 - 4 - 2 - 5 - 3 - 6 ) The distributor rotor turns CLOCKWISE The marked # 1 position on the distributor cap is installed facing towards the firewall and slightly towards the passenger side The engine cylinders / spark plugs are numbered 1 , 2 , 3 passenger side front to rear and 4 , 5 , 6 on the drivers side of the engine from front to rear

What is the firing order for a 2000 Ford F-150 5.4L?

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

It has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils

The engine cylinder locations are numbered :

firewall

4 - 8

3 - 7

2 - 6

1 - 5

front of Ford F-150

What is the firing order for a 1972 Chevy?

Vee-8 = 1-8-4-3-6-5-7-2 In Line-6 = 1-5-3-6-2-4 In Line-4 = 1-3-4-2

Which direction do you set a distributor drive gear in a mopar 440?

In a mopar 440 the distributor drive gear notch is set inline with the crankshaft, but it's just a reccomended starting point as long as you have enough space to turn the distributor in either direction to adjust timing when installed.

What is the firing order for a 31 liter 2000 Chevy lumina and what is the cylinder numbers from front of car?

the firing order will be located on the intake usually the aluminum part of the engine on the top you may need a lite to seeit

98 Ford Taurus won't start after new spark plugs and wires were replaced?

98 Ford Taurushey i own also an 98 Ford Taurus but the 3.0 v6 duratech

check the wires from the coil pack to the plug

make sure that the plug clicks into place

check to see if you even have any spark by pulling one of the new plugs and or the old and ground it to the motor and have some one turn the motor over and look an see if you have any spark older spark plug may not work try a new one if poss.

if you have spark that obviously means that isn't your problem whether they were gapped or not i havent ever gapped my plugs for the three yrs ive owned it and its allways ran i change my plugs every 4 weeks

if you can make sure you look to see if your getting fuel you can check that on the release valve on the end of the fuel rail ,that's where i put my inline alcohol injection... if that's not your problem then dis-connect your battery and wait for at least an hour before you connect it again to reset your ECU ( DO NOT DIS-CONNECT WHILE THE CAR IS ON) then try to start it again if no go then try this one last thing get a new ECU cause that's the only other thing i can think of unless your firing order is messed up but the front of the motor should be 123 then the 2nd head should be 456 start from left to right on each set.. and if you have any other questions feel free to email me @ ballzbaile002@AOL.com

john..

Where is the oxygen sensor located on a 1988 buick century?

Usually on the "Y" pipe just after the manifold connection points on a duel O2 sensor setup (one on each side) or just before the "y" pipe joins the flex pipe in front of the catalytic converter

Firing order for a 1970 350?

All V8 Chevrolet's are 1,8,4,3,6,5,7,2 with 1,3,5,7 on the left bank and 2,4,6,8 on the right with the distributor rotating clockwise.

The direction is ALWAYS figured while sitting in the vehicle. The left is the driver's side and the right is the passenger's side.

On distributor cap where does 1 spark plug wire go?

When looking from the front it si th left side nearest to you about 7 oclock or so. If it is a newer truck like the vortec series it is easier being the front one on the drivers side.

THIS IS APPARENTLY FOR A GM CAUSE THATS WHAT VORTEC IS

What is the firing order for a 1988 Chevy S-10 Blazer 4WD?

Front of vehicle 160 165 115 1 3 5 15 130 130 2 4 6 Firing order 1-2-3-4-5-6 123457 going clockwise

What is the firing order for a 1987 Subaru Legacy?

1-3-4-2 Distributor rotates counterclockwise.

Headlineactually having just changed my spark pluges everything runs straight from the top of the engin to the botom making the firing order easy. also it is printed onmost engins