P0305 for weeks

[pedrero]

I have tried to resolve this on my own for a while now. I am worried if I do not get it fixed it will cause more damage. I keep getting a P0305 error no matter what I try. I brought it to a mechanic because the check engine light went on but I was also due for an oil change. The mechanic said it was a fuel injector and would cost $350 to change it. I thought that seemed a little high so I told him to hold off a while and I would bring it back. I asked him to put in a can of seafoam to see if that would resolve the issue. A few days later the code was still there so I called my buddy who works on cars and he said I could change it on my own because it is near the fron of the engine. Here is what I ended up doing,

1. Changed the fuel injector.
2. Changed the coil.
3. Changed the Spark Plug with new Moror Craft
4. Added another can of Seafoam.

The error code keeps coming back. I don't know what esle to do.
I need to bring my truck on a long trip next month hauling my camper from NJ to WV and I don't want any problems. Please help and remember that although I am a little handy I am not familiar with all of the technical jargon.

Thanks

 

[designit]

How is it running?... Does it buck and jerk a little when at idle and when you give it the gas on the road? Does it seem a little sluggish accelerating, 0 to 40ish?

 

[ELVATO]

What year and engine do you have?

 

[2000eb]

ok... stupid question... did you reset the computer? disconnect battery for like thirt min it will go off naturally drive it awhile and if it comes back then you know you didnt fix it with your repairs

 

[panda24619]

how much you want to bet its the vacuum line behind the TB??? isnt that code one of the codes that comes up when you get a hole in that elbow?

 

[designit]

Where's waldo? Hey welcome to the forum....

Did he think he was posting on the other site & didn't expect a reply for a couple of days?

 

[designit]

how much you want to bet its the vacuum line behind the TB??? isnt that code one of the codes that comes up when you get a hole in that elbow?

Are you telling me the hole in the vacuum line will trip a specific misfire code? (rather than any one of the 8 holes?)...

 

[2000eb]

panda where are you its been a few hours... i thought u where on here more then me

 

[panda24619]

i am on here more than you. but your catching up... maybe not! 1000+ vs 100+. haha but yeah that stupid little elbow behind the TB will trigger a code. i know my tank ran like crap when i had the hole. and i kept getting code after code after code. and i think i saw lanes thread on the old site and fixed it. then i joined a few months later.

 

[pedrero]

It idles a little jerkey but after taking it on the highway it seems to run better but not perfect.

 

[pedrero]

1999 5.4 with 150k

 

[pedrero]

ok... stupid question... did you reset the computer? disconnect battery for like thirt min it will go off naturally drive it awhile and if it comes back then you know you didnt fix it with your repairs

I did reset it by disconnecting the cables. I disconnected them each time I changed something.

 

[pedrero]

Where's waldo? Hey welcome to the forum....

Did he think he was posting on the other site & didn't expect a reply for a couple of days?

Sorry I did not think I would get so many quick responses. You are right. I just came over from the infamous "OTHER" site.

 

[pedrero]

It idles a little jerkey but after taking it on the highway it seems to run better but not perfect.

BTW, it does feel sluggish going uphill until I accelerate by downshifting (auto Trans)then I get more power. I also hear a tapping or rattling sound when I accel in the morning but that gets quieter or goes away after it warms up.

 

[panda24619]

only autos in these things. wish they came mans. o well. but check the elbow behind the TB. that would be the 1st thing to check.

from the other site. http://expeditionforum.com/showthread.php?t=4926 this needs to be a sticky. LANE!!!! put this on here!!!

 

[designit]

Do you have access to an ODB2 code reader?

Thoughts I have are:

1. try and borrow a code reader for a couple of weeks. or buy one for $60.00 if you can
2. Clear all the codes in the computer.
3. run the tests listed here: http://www.obdii.com/drivecycleford.html while the reader is hooked up...

I'm not sure about the injectors?
1. try letting the motor suck a little seafoam using the brake booster method -- here: http://expeditionforum.com/showthread.php?t=7500&highlight=seafoam+brake+booster+vacuum
2. Think about a set of new coils from ebay (and new plugs?)
3. I don't want to freak you out or anything but the ticking noise you're hearing "could be" a plug backing out & it may be about to blow out?...
4. If you end up going the way of new coils / plugs... Google up "cleaning fuel injectors" & soak em in cleaner? or you could even swap your set out for a set of serviced injectors for 70-80 bucks...?
5. and whatever else jedi brother panda spewed out his chops above me...

If you don't have a stash of cash laying around to pay a mechanic (not sure who does these days) I would say it's time to get to know your motor up close and personal... It's really not that hard if you take your time, use the right tools (not the most expensive ones) and keep posting in here for feedback...

I know I had to bring my rig back from the brink of a rusting junkyard so it is do'able... (and I think I saved at least $2000.00 in labor by doing it myself) Good luck, keep us posted, or fire away with whatever...

 

[2000eb]

i would deffinately do the seafoam trick. there is a thread around here about it o and fyi...autozone 7.99 a can......o'reilly buy two at 9.99 get one free and wally world is like 8.79 or something like that for a can of seafoam. i love the stuff so i look at prices

 

[panda24619]

i would deffinately do the seafoam trick. there is a thread around here about it o and fyi...autozone 7.99 a can......o'reilly buy two at 9.99 get one free and wally world is like 8.79 or something like that for a can of seafoam. i love the stuff so i look at prices

i did that. have them sitting around. if i can get my friend to come over tomorrow ill do it. if not, then o well. haha

 

[NewbieVet]

here's the link to the seafoam link.

 

[walnuts4x4]

yeah I would check for a vacuum leak by the little T... also you said it was P0305...are you sure you changed the right plug? have to ask...