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Post by dbd870 on Oct 27, 2017 8:58:43 GMT -5
There is a cylinder missing out on my wife's car (#1 FWIW); I know of several possible causes. Is there any way to narrow down which one it is short of being a parts changer?
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Post by swilk on Oct 27, 2017 9:11:32 GMT -5
Been a long time since i turned wrenches but a code should tell you if its fuel or fire related ... assuming it has a code.
Not a lot to making a cylinder go bang ... compression, timing, fuel, fire.
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Post by greghopper on Oct 27, 2017 9:11:44 GMT -5
Remove one plug wire at a time then start engine...the one that is bad your see little or no diffence in how it runs with that one off.
Best to take the wire off while engine is off and then put back on with engine off!
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Post by tenring on Oct 27, 2017 9:27:47 GMT -5
Yes with the engine off, learned that one at a very early age. When I got up from the ground it felt like someone had hit my arm several times with a framing hammer.
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Post by swilk on Oct 27, 2017 9:32:02 GMT -5
Maybe Im reading it wrong but he knows its number 1 cylinder and is asking how he fuigures out exactly what the problem is .... without changing parts.
If the codes dont help you can pull the plug wire and put a short screwdriver into it and let it arc to metal while it cranks to see if it has fire.
If it does you can pull that plug just to have a look .... put your finger into the hole while it is cranked to see if it has compression.
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Post by nfalls116 on Oct 27, 2017 9:43:18 GMT -5
It would help a lot to know which car dbd870 |
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Post by greghopper on Oct 27, 2017 9:54:48 GMT -5
Maybe Im reading it wrong but he knows its number 1 cylinder and is asking how he fuigures out exactly what the problem is .... without changing parts. If the codes dont help you can pull the plug wire and put a short screwdriver into it and let it arc to metal while it cranks to see if it has fire. If it does you can pull that plug just to have a look .... put your finger into he hole while it is cranked to see if it has compression. you got it right....i missed the #1 part |
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Post by drfleck on Oct 27, 2017 10:10:40 GMT -5
You could put swap the plug from cylinder one with another cylinder. See if that cylinder throws a code.
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Post by 36fan on Oct 27, 2017 10:53:23 GMT -5
Need more info. Does it have a distributor and cap, coil pack and wires, or COP?
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Post by esshup on Oct 27, 2017 12:02:48 GMT -5
There is a cylinder missing out on my wife's car (#1 FWIW); I'll beat nfalls116 to it. Who took it??  |
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Post by esshup on Oct 27, 2017 12:09:00 GMT -5
I agree, what year and model car and how many miles? Many possibilities from no spark, to no fuel (if injected) to bad compression.
Pull spark plug on that cylinder and the one next to it, see if both are showing the same amount of wear. if many miles, put new ones in all cylinders.
Hold spark plug and wire against motor to see if there is a spark when the engine is running.
Pull all plugs, run a compression test.
If there's good spark and the compression is good, look at the fuel system. Could be a bad/plugged injector if the car has them.
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Post by nfalls116 on Oct 27, 2017 12:20:25 GMT -5
I'd bet 23$ it's not compression issue
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Post by drfleck on Oct 27, 2017 12:44:06 GMT -5
My bet is loss of spark. That is barring any failure of the canooter valve.
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Post by whitetaildave24 on Oct 27, 2017 13:08:58 GMT -5
I’d check the turn signal fluid while you are at it.
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Post by span870 on Oct 27, 2017 13:18:18 GMT -5
Hit it with a hammer. That don't work, get a bigger hammer.
Have you cussed at it. I find cussing at it helps a bit too.
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Post by dbd870 on Oct 27, 2017 14:18:46 GMT -5
Yeah I'm betting it's spark or fuel 2002 3.0L Ford V6 140K miles.
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Post by greghopper on Oct 27, 2017 14:47:19 GMT -5
When was last time plugs where changed?
Start there if I was you... and the #1 plug!
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