Changed Sprk Plgs and now misfiring.
06-21-06, 11:41 AM
#17
Lexus Test Driver
Thread Starter
Gserep I think we are experiencing the same problem. I understand how annoying that put-put noise can be. I was on the e-way last night doing about 55-60 and even if i were to accel slowly it would still putt-putt!!! I want to try what Kaiser suggested just as long as that wouldn't mess anything up. The only lexus tech I know is my ex gf childrens father, with that said he kinda hates me. Bummer. Broads...never worth it.
06-21-06, 03:14 PM
#20
I agree with Kaiser and ILOVEGIRLS.
Kaiser has the right process for finding the bad cylinder/plug/wire.
I doubt it is a coil pack that is bad. Seriously. The odds of it going bad as you did your plug change would be staggering.
Cracked porcelain, bad plug, or plug wire is most likely. I'd vote for the plug wire.
Be careful pulling them off, they can be "heat-welded" on there. Do you remember any of them giving you any trouble?
If the miss sound is bad enough, sometimes you can find the offending cylinder by feeling EACH exhaust manifold pipe during the first 60 seconds or so. It may take two people.
A mis-firing cylinder, or non-firing cylinder, won't heat up as quickly as the others.
Kaiser has the right process for finding the bad cylinder/plug/wire.
I doubt it is a coil pack that is bad. Seriously. The odds of it going bad as you did your plug change would be staggering.
Cracked porcelain, bad plug, or plug wire is most likely. I'd vote for the plug wire.
Be careful pulling them off, they can be "heat-welded" on there. Do you remember any of them giving you any trouble?
If the miss sound is bad enough, sometimes you can find the offending cylinder by feeling EACH exhaust manifold pipe during the first 60 seconds or so. It may take two people.
A mis-firing cylinder, or non-firing cylinder, won't heat up as quickly as the others.
06-21-06, 03:58 PM
#21
Lexus Test Driver
Thread Starter
I guess one huge thing I left out is that the first pack that was pulled came out without the sleeve. Turns out that the rubber sleeve housing it is torn at the top and has some tears along side of it. I asked wdpower and he suggested I might have a leak that is affecting ignition. Seems logical. Anyone else have any suggestions? Seem right?
06-22-06, 02:58 PM
#24
DzazstrBUSE -
Any spark, like that being generated by a coil out to the sparkplug tip, will take the "path of least resistance".
When there are cracks in wires, coil housings, etc, etc, sometimes that spark energy will jump out of that crack to the nearest metal piece. (ie. 'ground') This spark energy doesn't reach the plug, thus you get the mis-fire sound.
You could think of it as a mini-lightning bolt coming from the coil or wire and jumping to the exhaust system, or a bolt, or a bracket, whatever is closest.
That jumping of the spark energy can be referred to as an arc.
Any spark, like that being generated by a coil out to the sparkplug tip, will take the "path of least resistance".
When there are cracks in wires, coil housings, etc, etc, sometimes that spark energy will jump out of that crack to the nearest metal piece. (ie. 'ground') This spark energy doesn't reach the plug, thus you get the mis-fire sound.
You could think of it as a mini-lightning bolt coming from the coil or wire and jumping to the exhaust system, or a bolt, or a bracket, whatever is closest.
That jumping of the spark energy can be referred to as an arc.
06-23-06, 03:34 PM
#25
Lexus Test Driver
Thread Starter
What an idiot. I cannot believe I went to electronic engineering school for a year and didn't figure what you you guys where talking about. Spent it mostly high or waiting to leave though. You did spark my memory when you wrote "Arc". That probably makes the most sense. Ill try to get a new sleeve and let "ya'll" know what the end result is.
07-01-06, 10:50 PM
#26
Lexus Test Driver
Thread Starter
Originally Posted by BA_GS400
DzazstrBUSE -
Any spark, like that being generated by a coil out to the sparkplug tip, will take the "path of least resistance".
When there are cracks in wires, coil housings, etc, etc, sometimes that spark energy will jump out of that crack to the nearest metal piece. (ie. 'ground') This spark energy doesn't reach the plug, thus you get the mis-fire sound.
You could think of it as a mini-lightning bolt coming from the coil or wire and jumping to the exhaust system, or a bolt, or a bracket, whatever is closest.
That jumping of the spark energy can be referred to as an arc.
Any spark, like that being generated by a coil out to the sparkplug tip, will take the "path of least resistance".
When there are cracks in wires, coil housings, etc, etc, sometimes that spark energy will jump out of that crack to the nearest metal piece. (ie. 'ground') This spark energy doesn't reach the plug, thus you get the mis-fire sound.
You could think of it as a mini-lightning bolt coming from the coil or wire and jumping to the exhaust system, or a bolt, or a bracket, whatever is closest.
That jumping of the spark energy can be referred to as an arc.
07-02-06, 06:06 AM
#27
Your white spotting is carbon tacking, where the arc is coming out of your sleve. If you wrap it in electrical tape consider that a band-aid fix, don't leave it there. That is a lot of voltage.
You PM'd ne saying your MIL had come on, I'm sorry I didn't see how far you had gone with this. Have you checked the codes yet? Your standard P03?? code will tell you the misfiring cylinder unless you get P0300, random misfire. The last two digits refer to the misfiring cylinder, P0301, cyl. one.
-Bill
You PM'd ne saying your MIL had come on, I'm sorry I didn't see how far you had gone with this. Have you checked the codes yet? Your standard P03?? code will tell you the misfiring cylinder unless you get P0300, random misfire. The last two digits refer to the misfiring cylinder, P0301, cyl. one.
-Bill
07-02-06, 03:00 PM
#29
Lexus Test Driver
Thread Starter
Originally Posted by Kharizma
how do you know if your car is misfiring? haha sorry for the newbie question...does the CEL come on? or is it just based on feeling?
07-02-06, 03:09 PM
#30
you could always cross your fingers and try some basic junk yards. Sure, most wouldn't want to part out the whole engine, but, you never know till you call. An engine in an accident could have a cracked block and all it's parts could be for sale!
I use www.car-parts.com, a nationwide, network of recycling yards. (ok, it's a junk yard in my book!)
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I use www.car-parts.com, a nationwide, network of recycling yards. (ok, it's a junk yard in my book!)
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