Cylinder Misfire?
#1
Cylinder Misfire?
So here's a brief synopsis of what's going on...
I had a Cylinder 3 misfire yesterday. I changed all spark plugs and that didn't fix it. I then changed the coil pack from Cylinder 3 to Cylinder 5 and the other back to cylinder 3 of course...ran like a charm. It's ran well until today when I was getting on the highway, Check Engine Light came back on.
Now it's a cylinder 5 misfire.
What's going on? A friend of mine says it could be the wires while I'm thinking it's the coil pack.
What do you all think??
I have a appt with my toyota dealership tomorrow to get it looked at, but I'd rather not spend the money there if I can fix it at the house.
Thanks!!
I had a Cylinder 3 misfire yesterday. I changed all spark plugs and that didn't fix it. I then changed the coil pack from Cylinder 3 to Cylinder 5 and the other back to cylinder 3 of course...ran like a charm. It's ran well until today when I was getting on the highway, Check Engine Light came back on.
Now it's a cylinder 5 misfire.
What's going on? A friend of mine says it could be the wires while I'm thinking it's the coil pack.
What do you all think??
I have a appt with my toyota dealership tomorrow to get it looked at, but I'd rather not spend the money there if I can fix it at the house.
Thanks!!
#2
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If you only moved the coil pack and not the wires, then its definitely a coil pack. Swap the coil pack, and save some $$. Depending on how old the wires are, a new set wouldn't hurt anything either.
EDIT: You can order the parts for cheaper from trdparts4u.com. They are prolly cheaper than the dealer new you including shipping.
EDIT: You can order the parts for cheaper from trdparts4u.com. They are prolly cheaper than the dealer new you including shipping.
#4
Contributing Member
Not always.......but warriors_03 is also not correct that it automatically means you have a bad coil pack either. There are alot of reasons for misfires and you need to do diagnosis to figure out exactly what the issue really is.
#6
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MTL got me on that one...thats more of a gut reaction from me...
$40 bucks for a diagnose from the stealership? Damn thats cheap. Here it is $95...I would definitely do that then...
$40 bucks for a diagnose from the stealership? Damn thats cheap. Here it is $95...I would definitely do that then...
#7
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If you moved just the coil pack from 3 to 5 and the problem followed the coil pack, I would roll the dice and just get a new coil pack. The problem followed the part so in my opinion you can confidently swap it out.
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#8
My mechanic buddy said that since the truck ran fine for a while then it's probably the wire that connects to the coil pack. Since it would heat up and then not carry a good signal to the coil pack.
Should I try the wire first? Where can I get one of these?
Thanks for the help!
Should I try the wire first? Where can I get one of these?
Thanks for the help!
#9
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But if the wires were not swapped, then it would be a pretty odd coincidence that the original cylinder 3 problem followed to cylinder 5. If the only part that moved was the coil pack, then I would replace that.
#10
What I'm actually talking about is the wire that comes from the coil pack to the spark plug.
#12
Well, I got a new coil pack and it works fine. Unfortunately all I needed was the boot that runs from the coil pack to the spark plug as I can see where the coiled wire inside is broken.
$70 bucks now is better than $40 bucks tomorrow and then spending money for parts.
Thanks for the help!
$70 bucks now is better than $40 bucks tomorrow and then spending money for parts.
Thanks for the help!
#15
Registered User
Yup, had to be the plug wire since the coil pack gives spark to 2 cylinders, and you would have had 2 cylinder misfires if the coil pack was bad.
Save the old coil pack for a backup.
Save the old coil pack for a backup.
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