As i said in my last post. my truck is having a hard time starting on all cylinders. it clears up and runs fine after about 10 minutes.
any time you start it after that, it starts and runs fine until left over night. it never gets below 50 here at night where i live in so cal.

my truck has 248.000 on the clock and most everything is still stock.
i have not worked in it or even driven it much since i last posted.

I believed this was because of old glow plugs that are ready to go to the great glow plug in the sky.

in anticipation of work that needs to be done anyway,
i ordered new glow plugs, a turbo wheel because of bad serge when towing, a turbo rebuild and pedestal o-ring kit from Clay.
and i am also looking at on how to check the compression while i am in there.

i dug out my A.E tonight that i am not real familiar with and was messing around with it.
i had done a buzz test a couple of years ago messing around and never got into A.E much farther because everything was running great.


Tonight when i checked. it came up with P1211 low/hi running injector pressure.
then i did a buzz test. #5 and #7 were very, very faint compared to the others. last time i did this years ago, they all sounded the same.

i need to do some reading up on where to start , what i am looking at and for.
Any help would be great for things to look at and watch on scan tool.

I had mentioned awhile back that i thought that my injectors started to have a tinny sound to them and were a little louder than i remember them being before.
I can't afford it right now but i may have to bite the bullet and buy new injectors also.

I remember someone at some time posting about shimming the Injectors if they were not passing a lot of oil or something of that nature.
im not sure that these could be beyond that point already.

I just had the truck painted two months ago and that was pricey for this big beast.

Thanks, Phil

 

The faint sound on the buzz test is your first clue. Next, once it is warm and running great, perform another buzz test. If all 8 sound strong and healthy, you have your answer. Odds are, you need new injectors. The clearances wear out over time and don't work as well till the oil temp comes up. I've seen dozens of trucks where the owner has replaced the whole glow plug system chasing a hard start that was really worn out injectors.

 

A couple of guys gave good reports after shimming their injector poppets to get them back into spec. The kit is available on Fleabay and it is not expensive.

 

So tonight i warmed up the truck after doing a buzz test. cold #5 #7 faint. warm #5 normal #7 still faint.

KOER cylinder contribution test came back with #8 fail. if i remember this is a normal fail for #8 because its different ?

I ordered a shim kit and will give that a try while i am changing the glow plugs and checking the harness's anyway.

 

Yes, #8 is a common fail on the CCT.

 

UPDATE truck is running Great again. here is a link to what i had done.

https://www.ford-trucks.com/forums/1...l#post18377609