CCV video
Thread Starter
|
Tuned
Joined: Aug 2015
Posts: 383
Likes: 0
CCV video
So I was checking a bunch of things yesterday to ensure its worth dropping money on injectors and transmission. As I was checking the turbo spin up and down to see if I had bearing issues I noticed the amount of vapour coming from the CCV. There's no real pressure behind the vapour and it's a consistent push no pulsing. Thoughts? 300k miles 7.3 F250
https://vimeo.com/160879616
https://vimeo.com/160879616
Elder User
Joined: Aug 2015
Posts: 535
Likes: 3
You could do a compression test to see were you are. But its pretty normal for a lot of vapor to pass threw there. There are some mods to eliminate it and plumb it else were into the atmosphere. There is no benefit at all doing this and the system is designed to pass that much vapor. Your compression would determine how much vapor is normal. If its low, your passing too much. A red neck test is to take you oil fill cap off and turn it upside down on the fill tube covering it at idle. If it blows off, then your probably getting some good blow by. If not, its probably near normal. My motor is pretty new still, and it has vapor. They all do to a point.
Thread Starter
|
Tuned
Joined: Aug 2015
Posts: 383
Likes: 0
Electronic compression test done the other day and didn't pick up any particular cylinder worse than the rest, all be it it wont give scores as a manual test would. Mechanic then drove it and said it felt like the compression was good and engine was responding well. Contribution test suggested 1,7,8 not as good as rest and buzzing injectors showed 1, 7, 8 and possibly 5 not so good. Tugly and some of the other guys offered some sound advice as well on the above. I was just surprised by the amount of vapor.
Senior User
Joined: Mar 2016
Posts: 119
Likes: 0
Electronic compression test done the other day and didn't pick up any particular cylinder worse than the rest, all be it it wont give scores as a manual test would. Mechanic then drove it and said it felt like the compression was good and engine was responding well. Contribution test suggested 1,7,8 not as good as rest and buzzing injectors showed 1, 7, 8 and possibly 5 not so good. Tugly and some of the other guys offered some sound advice as well on the above. I was just surprised by the amount of vapor.
If the Relative Compression Test showed no great anomalies as you state, unless your getting a great amount of condensate oil, the vapors are insignificant without further symptom's.
I would pursue the CCT Results to determine the validity of the results.
As an overall assessment otherwise, you have nothing at this point to be concerned.
Thread Starter
|
Tuned
Joined: Aug 2015
Posts: 383
Likes: 0
Thanks for the info!! As an aside, climbing round the truck today I noticed the passenger side Valve cover harness was only loosely connected on. That would explain my greater difficulty when starting the truck collecting from the garage, but would that not also possibly cause reduced power and the results of the injector buzz and contribution test?
Truck was gutless towing back from Texas recently and cost me the transmission.
Truck was gutless towing back from Texas recently and cost me the transmission.
Senior User
Joined: Mar 2016
Posts: 119
Likes: 0
Thanks for the info!! As an aside, climbing round the truck today I noticed the passenger side Valve cover harness was only loosely connected on. That would explain my greater difficulty when starting the truck collecting from the garage, but would that not also possibly cause reduced power and the results of the injector buzz and contribution test?
Truck was gutless towing back from Texas recently and cost me the transmission.
Truck was gutless towing back from Texas recently and cost me the transmission.
As with most vehicles getting 16 years old they are becoming a dedication to maintenance and troubleshooting. Especially where connectors and wiring is concerned as they tend to become less pliable and brittle.
Yes, a valve cover harness can play games. When considering that the injectors and glow plugs and their wiring is side-by-side through loom and connections there is a higher rate of failure (or loosening connections). You said 1,7, and 8 were an issue during the CCT. 8 Show up like a sex site on a Google search. Almost always there. 1 nd 7 are on the Passengers side and may now test better.
Thread
Thread Starter
Forum
Replies
Last Post
lght1
1999 - 2003 7.3L Power Stroke Diesel
1
Oct 22, 2013 02:07 PM
