P0305 code and a few questions

Old Jun 19, 2008 | 12:50 PM
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P0305 code and a few questions

Ok well we got a little rain last night while i was at work. After work i get in my truck to head home and my baby didnt seem to happy. sounded like a mis... well by the time i got home, 2 miles, My CEL was on and i used my edge to check it. P0305, Cylender 5 misfire. so i get my little Automotive stethascope and i the little clicks where there but weaker then the rest, none sounded that strong tho. So i unplug the battery and after 10-15 mins put it back on, and still doing it... She has 108,000 miles on her, i have thought about replacing the COPs but i havent needed to untill now, it may just be water tho. idk how but maybe. but i looked on Ebay and found these...
http://cgi.ebay.com/ebaymotors/8-IGN...spagenameZWDVW
Will they work? what do you suggest? where should i get them at a good price?

Also i have thought about replacing the fuel injecters, just cuz... I think 19 is stock right? I think thats what ill go with... but i have to ask, if i got the 24s (and the gyrmon i am already planing) will they be better? What about gas milage? what do you think? what do you suggest? where should i get them at a good price?

mods in the sig... Im going to be getting LT and 2 14" magaflows before the gyrmon and will need the injectors too..
 
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Old Jun 19, 2008 | 01:00 PM
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This will be easier on your wallet... http://cgi.ebay.com/ebaymotors/NEW-I...mZ180245557172

I wouldn't worry about replacing the injectors. They have more life in them.
 
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Old Jun 19, 2008 | 01:32 PM
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Originally Posted by tech-doc
This will be easier on your wallet... http://cgi.ebay.com/ebaymotors/NEW-I...mZ180245557172

I wouldn't worry about replacing the injectors. They have more life in them.
What do you figure the life expectancy of injectors is?
 
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Old Jun 19, 2008 | 02:34 PM
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I know you didn't ask me, Ill share my experience with em anyway - Stock injectors are so cheap I replaced mine @ 165,000 w/new type 3's 2-3 years ago. They were only $60 for set of 8 on ebay. I did the COP's at the same time (Factory Motorcraft COP's - Same price $60 new on ebay). The truck ran like it lost 2000 lbs/ quick a very responsive instead of slug - BIG difference!!!



BTW - See how I have #4 in the #1 slot ? That Motorcraft went out in #4 after 2000 miles. I just switched #4 with #1 to confirm and took this picture after switching. It was bad. Replaced it. I ran those for a couple years after that. Well #8 Motorcraft went out as well within those two years, but that was because I blew my fuel line @ the rail and soaked the back of the engine down w/fuel - #8 got saturated w/fuel when that happened (glad I used plenty of di-electric grease) - even tho it was greased well, the fuel soaking compromised the coil. I'm running Global coils now and haven't had a problem. I installed Global coils last winter.
 

Last edited by jbrew; Jun 19, 2008 at 02:53 PM.
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Old Jun 19, 2008 | 04:20 PM
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Originally Posted by Blown F-150
What do you figure the life expectancy of injectors is?
Well, like anything mechanical, their life expectancy varies... Look at jbrew's experience. Other people have had more troubles out of them.

As for my experience with them, I am approaching 200K miles, and, (knock on wood) no issues.

Maybe I need to re-evaluate MY SITUATION? LOL Should I get a set and keep them under the seat for a rainy day? LMAO I am curious as to what others have to say about it really.
 
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Old Jun 19, 2008 | 06:07 PM
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Yea , what sucks about the whole thing is - I don't know wether the new coils made the difference or the new injectors - I did them both at the same time

Regardless, something was wore out and just updating in those two areas made a big difference in the way she ran. Very noticable. Who know's, maybe the injectors AND coils together were spent

If you keep an eye on ebay, you can get NEW factory takeoffs. There's allot of Crown Vic crate motors that get parted out (Top ends) and quite a few CV components are interchangable with ours. That's how I replaced most of my parts - CHEAP!.
 

Last edited by jbrew; Jun 19, 2008 at 06:15 PM.
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Old Jun 19, 2008 | 06:12 PM
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Originally Posted by jbrew
Yea , what sucks about the whole thing is - I don't know wether the new coils made the difference or the new injectors - I did them both at the same time

Regardless, something was wore out and just updating in those two areas made a big difference in the way she ran. Very noticable.
Yea i plan on doing both at the same time too... what do you think about putting in the 24 lbs injectors?
 
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Old Jun 19, 2008 | 06:23 PM
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Originally Posted by polpilot
Yea i plan on doing both at the same time too... what do you think about putting in the 24 lbs injectors?
I've heard you can do it - not sure if there's any gains from that. tajeramy (spelling) would know about that.

I'm thinking that you won't gain a thing without a tune. BUT, I've heard that you can gain a little (wayyy up top) with a tune.

Idunno, unless your engine is producing over 300 hp, then I don't think they will make a difference - might f^ck sh^t up tho ..
 
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Old Jun 19, 2008 | 06:45 PM
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Originally Posted by jbrew
I've heard you can do it - not sure if there's any gains from that. tajeramy (spelling) would know about that.

I'm thinking that you won't gain a thing without a tune. BUT, I've heard that you can gain a little (wayyy up top) with a tune.

Idunno, unless your engine is producing over 300 hp, then I don't think they will make a difference - might f^ck sh^t up tho ..
HAHA.. ok i think ill stick with the 19s.. i am planing on doing the gyrmon but i dont reall want to vencher into uncharted waters lol.... Thx for your help, But yet again Jbrew
 
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Old Jun 19, 2008 | 07:55 PM
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Thanks for the info! I already have a set of 42#er's waiting to go in, I just am working on getting everything else together for that equation, mainly a tune since I also already have a 255LHP pump sitting in my tool box. The whole reason I asked was that I knew how much of a difference it made when I swapped out my COP's, and I figured my injectors could be getting a little on the worn side as well. Any recommend Fuel injector cleaners out there? What do you guys feel about the 3 chemical injector flush provided by a few of the garages out there? Is it just a bunch of bull?
 
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Old Jun 21, 2008 | 07:01 PM
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Ok one more question... am i going to hurt anythig by driving the truck with the miss? the paters will be here wensday and put on thursday or friday... I thing i may go ahead and and replace the spark plugs i have the bosh platnum 2 in there now, should i or do you think im good? they have been in there for a lil over a year
 
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Old Jun 21, 2008 | 09:11 PM
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Are you nuts !!??? Absolutely get those out of there, it will prolly run so much better just installing the RIGHT plugs in it first. Bosch are the worst -hands down/ AutoLite is the second worse plugs for the two valves. Your just lucky yours haven't melted down yet. The Bosch falls apart inside the cylinders and will trash a good motor. ALL Autolites are the incorrect heat range - They don't make an Autolite up to Ford spec for these two valves. That's why Honeywell has MOTORCRAFT Plugs in production - For Ford Motor and there spec-ed by FORD. Just stay away from those other two name brands.

MOTORCRAFT ONLY to be safe and get the most from your motor- You should know this , I'm surprised.

You can reboot after 300 miles if it's still missing and your replacements haven't arrived yet (BTW - What the hell is "paters"? ) - Going back to adaptive strategies will fire a weak coil intermittently / enough to get her to run a little better for awhile. But it will return to running sh^ty pretty fast depending on the weak coil. If you have Primary failure - nothing will help but a replacement.
 

Last edited by jbrew; Jun 21, 2008 at 09:21 PM.
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Old Jun 22, 2008 | 04:31 AM
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paters = parts... haha i orderd new coils and injectors
 
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Old Jun 22, 2008 | 06:30 AM
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Motorcraft plugs are a must!

I can't believe you have had them fishing lures in there that long...
 
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