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Prages
03-09-2009, 10:31 PM
So, I made about $90 at my gig on Saturday.

My truck has had a misfire for a while, and when I had the code read, it said misfire on 5 and 6 and bank 2 was lean. The truck has about 120k miles on it. I last replaced the plugs and wires about 60k ago, and truth be told, it's had an occasional misfire ever since. I think I got a bad plug. The fuel filter has never been changed, since I didn't have the inline 'quick connect' tool.

So, with my $90 of gig money, I bought some plugs, wires, a fuel filter, and air filter, and the quick connect tool. It came out to about $92 all together.

I really am still a little sick, so I feined sickness and left work at about 3:00. Stopped and bought the parts, then went home and got to work. I was finished up by 5:00.

Everything went without a hitch except that since the truck was parked at a slight incline, as soon as I disconnected the fuel line, about a cup of gas poured into my face and shoulder. After I got the fuel filter changed out, I replaced one plug and wire at a time until I had gotten all six. Then changed the air filter.

Took the truck for a test drive. The light is still on, but I'm pretty sure I've read that it takes something like 10 startups without a problem before the code will reset. The truck seems to have a bit more power, and no miss that I can tell. I did about 20 miles both on back roads and hilly interstate (the missfire was most predominant on hills on the interstate). I didn't feel it miss once. I think I'm good to go.

I poured some injector cleaner in the tank and filled it with gas. Hopefully it'll also improve my fuel economy (I was only getting about 18 mpg before. If I can get 20, I'll be impressed).

So anyway, that's my car story for the day.

One of these days I'll take the truck to my buddy's garage and try to get the exhaust pipe tightened up. When I replaced the clutch, I had to loosen the pipe at the back of the header (to get the transmission out) and couldn't get it tightened all the way up when I put it back together. It's not a bad leak, but you can definitely hear a little leak at the back of the header. I think between his tools and knowhow (and his acetyline torch) we can get it clamped tight again.

BTW, why can't they come up with a way to make firing order make sense

My truck is a V6. It has one of the square type distributer/ignition coils.

Here's the layout of the cylinders

1 4
2 5
3 6

And here's the layout of the distributor

1 6
2 4
3 5


Why would they do that? :mad:

Mrs.P
03-09-2009, 10:44 PM
That is really great babe. Thanks for getting that done. That is so awesome.

Phil513
03-09-2009, 10:47 PM
Thats great! You fixed the miss, that should be a relief.

My stupid light is still on too, but i think i have traced it to the charcoal caninster. Something with crankcase ventilation, and its not the PCV valve.

Anyhow, good for you. Except the face full of gas. Thats never fun. biggrin

Oh, and for the code, just disconnect the battery for an hour or so. That will clear it.

Prages
03-09-2009, 11:41 PM
I just popped the door panel off hoping to be able to lubricate the locking mechanism so it would work, but alas, I think the relay is just too old and feeble to work the lock. :(

Maybe after my next gig I can tackle the little problem of the doors not unlocking. :D

Chihlidog
03-10-2009, 12:26 AM
I have a misfire in my Jeep I cant nail down. Had the stupid coil replaced at 400 bucks. Dumped injector cleaner in it. I still feel it missing. Light finally came back on. Plugs are new. I dont know what else it could possibly be.

Prages
03-10-2009, 01:09 AM
I have a misfire in my Jeep I cant nail down. Had the stupid coil replaced at 400 bucks. Dumped injector cleaner in it. I still feel it missing. Light finally came back on. Plugs are new. I dont know what else it could possibly be.

Could have jumped time just a bit. A lot of cars have timing belts instead of timing chains and it's recommended to get the belt changed after about 60k miles. If your belt is old, it may be loose enough to have let it jump time by a degree or two.

Other than that, if your plugs, wires, and coil are good, and the injectors aren't clogged, there's really no other reason I can think of for a misfire.