Question about Ford Merkur Scorpio
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Posted on Jan 02, 2017
SOURCE: Audi A6 Misfires
You may have a coil pack going bad. They're on the front top of the engine - you'll see them if you follow the spark plug wires back. Do you have any codes from having the engine scanned? If you can get it scanned (AutoZone will do it free), post the codes up and we'll see which cylinder(s) are misfiring. From there, you can swap coilpacks around and see whether the misfires follow the packs or stay in the original cylinders. If they move, you have a bad coil pack or two. If they don't, since you've already changed plugs and wires, I'd see about having the injectors diagnosed to see if any of them are failing.
Posted on Jul 22, 2008
SOURCE: Ford Puma 1.7. Misfire
If the engine is misfiring then the cylinder doing the misfire if irt is only one that is will be easy to read...
As you pull each plug examine it. compare them to eachouter as you do this...
The plug that skips will be wet or more blackened from carbon build up.
Now you know with one. First check toat plug wire and also examine the supressor, that is the part that keeps the wire connection to the plug. Look under the garmets or the rubber insultors on this unit. see if ther is any pothole burn marks. These thing should be part of the ignition wire when you changed the set. Another is to check the compression. With the gauge connection replacing the sparkplug ...At full trottle crank the engine using the ignition key sound like about 4 times.
The gauge should read over 110 if this number is less reset the gauge and do it again a couple of times to make sure. Now doing it over and over still gets you a lower reading then that cylinder piston or valves is not sealing properly letting air escape on the compression stroke reducing the combustion ration and getting a bad burn making the engine skip. I had this happen to me and all it was was a bad suppressor a new, wire set worked.
Posted on Jul 26, 2009
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