Question about 1988 Jaguar XJ6

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No spark number 6 cylinder v-8

I have a 1977 Tbird that is running on 7 cylinders number 6 does not fire car runs rough gets gas but no spark Ford 400M 2BBL

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If it is none of the above, could possibly be the piston head itself. I had the same issue with my 91' F-150 with a 302 EFI. Ran all the tests, still came up with low to no compression on the #8. Popped the head off and found out a large chunk of the piston head was gone. Hope that's not the problem, but just throwing it out there

Posted on Oct 27, 2012

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  • 351 Answers

Check compression, plug lead & plug, the plug could have a bit of carbon between the point gap
hope this helps

Posted on May 19, 2009

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Does not fire where? at the plug? have u checked the wire, cap..hmmm..77 ..how many miles on that motor? have u done a compression check? could be burned valve, fouled plug bad wire worn cap and or rotor ..check the obvious first. start at the plug..if it's not firing, swap it for a known good one.. if it doesn't fire, swap the wire, if it still doesn't fire swap cap and rotor..if that doesn't solve or identify where the bad component is.or if you find you have fire at the plug but still misses on the cylinder.... start looking inside.. run compression check... if it's low squirt oil in cylindeer and check again.. if it comes up drastically.. it's worn rings..but if it stays low probably worn valves. but i'm thinking its somewhere between the distributer and the plug.. good luck...

Posted on May 19, 2009

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How do i see if my 4.2 cylinder nissan pick up is getting gas to the number one cylinder


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Engine running rough missing diagnosed at auto parts store, cylinder 2 misfiring where is no. 2 cylinder?


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Recently had all plugs and EGR Valve changed.


firewall

4 - 8

3 - 7

2 - 6

1 - 5

front

The spark plug firing order is 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 Make sure the coil is good.

Jul 21, 2010 | 2000 Ford Expedition

1 Answer

Had plugs changed runs rough


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1 Answer

Spark plug firing order Diagram


For the 1984 Ford F150:
I do not know if you have the 4.9L In-Line (Straight) 6-Cylinder, the 5.0L V8, or the 5.8L V8; however I have included all below.

For the 4.9L In-Line 6-Cylinder:
Firing Order
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)
Distributor:
...........4
.....2
[].............1
..6.............[]-clip
.............5
.....3
Rotation: Clockwise

For the 5.0L V8:
Firing Order:
1-5-4-2-6-3-7-8
Cylinders:
........(back).......
|...4...|......|...8...|
|...3...|......|...7...|
|...2...|......|...6...|
|...1...|......|...5...|
.......(front)
Distributor:
..[]....5...1
4................8
2................7
....6....3..[]-clip
Rotation: Counter Clockwise

For the 5.8L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
........(back)........
|...4...|.......|...8...|
|...3...|.......|...7...|
|...2...|.......|...6...|
|...1...|.......|...5...|
........(front)
Distributor:
..[]..3....1
7..............8
2..............4
....6....5..[]-clip
Rotation: Counter Clockwise.


Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

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3 Answers

2005 firing order Ford Expedition need to know wich is piston number 8


Hello morris_valen: My name is Roger and I can help. The fire order is 1-3-7-2-6-5-4-8. Number 8 cylinder is the rear plug on the drivers side. The cylinders run front to back on the passenger side as 1-2-3-4- and on the opposite side front to back 5-6-7-8.
Should you need further help please just ask. Please rate this answer as that way I know the answer was helpful. Thank You for using Fix Ya. Roger

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5 Answers

Where's the number one cylinder on a ford f-150 truck?


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0d6e880.jpg

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I hope help you (remember rated this help) good luck.

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1 Answer

What is the firing order and spark plug connection?


4.0L OHV Firing Order Firing order for the 4.0 liter OHV V6 is
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4.0L SOHV Firing Order Firing order for the 4.0 liter SOHV V6 is
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5.0L Firing Order Firing order for the 5.0 liter V8 is
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How to Find the Cylinder Order V6 When standing in the front of the vehicle the cylinders are numbered 1-3 up the passenger's side and 4-6 up the driver's side. How to Find the Cylinder Order V8 When standing in the front of the vehicle the cylinders are numbered 1-4 up the passenger's side and 5-8 up the driver's side.

Jul 30, 2009 | 1999 Ford Explorer

2 Answers

Ford engine doesn't start after self tune up


Ok here is the meaning of firing order The numbers 1-5-4-2-6-3-7-8 represent the order of wish cylinder the distributor send a spark as it rotates Starting whit cylinder number 1 The distributor will have to rotor on the number 1 cylinder spark plug and the piston on the number 1 cylinder will be at the top So the fuel and air will be compressed and ignited by the spark plug. The next one will be the cylinder number 5 to do the same as the crankshaft and distributor rotate Next will be number 4 then 2 then 6 ? 7 ? 8. You get the idea "10 Degrees" The degrees represent of spark advance You may think gas explode instantly but it actually take a little time So for the explosion has maximum power when the piston reaches the top of the cylinder the distributor send the spark a little ahead of time 10 degrees of revolution is the recommended by the manufacture but that can be adjust buy losing up the distributor clap bolt and manually turn it. In order to adjust that you need a timing gun Than will flash light on the crankshaft pulley (harmonic balancer) and you will see a notch and a series of numbers than represents the timing advance Note If you have not turn the distributor by loosing to button clap bolt I recommend to live it alone and go to you local part store and get the repair manual find the firing order to see wish wire go to wish cylinder Rotate the crack shaft pulley on till the notch is on 0 and see if the distributor rotor is tours cylinder number one. Cars than don?t used distributor do that automatically and constantly adjust the ignition timing by the computer.

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