Update on Updated:Update: "maybe this will do"
Thread Starter
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Lead Driver
Joined: Nov 2007
Posts: 5,578
Likes: 1
Good suggestions.... Thanks for looking that up. Me and my friend tried swapping IDM's and that made no difference. The truck is going to a better dealership tomarrow where my friend is the head tech so i know they wont try scr** me over i will suggest these things to him thanks
Junior User
Joined: Mar 2007
Posts: 67
Likes: 0
From: Front Range Colorado
Nolan,
Was just reading the other day that some of the new CPS replacements are not working at all in some of the trucks. They are giving stange codes and odd symptoms which are throwing the dealers on the wrong track chasing dead ends and costing lots of cash. Keep this in mind since you said none of this was happening BEFORE you changed the infamous CPS Randy
Was just reading the other day that some of the new CPS replacements are not working at all in some of the trucks. They are giving stange codes and odd symptoms which are throwing the dealers on the wrong track chasing dead ends and costing lots of cash. Keep this in mind since you said none of this was happening BEFORE you changed the infamous CPS Randy
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Sorry, I don't think 250 is going to get it done at all.
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Lead Driver
Joined: Nov 2007
Posts: 5,578
Likes: 1
Ridgerunner- Thanks for the suggestion... But before I did anything els I played "swap the cps" I had a new grey one in there from the dealer and I said "f" this thing and put a black one in... Didn't make a difference, but i left it in there anyway...
Mike- Cant blam me for being hopeful can ya? lol
Mike- Cant blam me for being hopeful can ya? lol
Senior User
Joined: Mar 2003
Posts: 397
Likes: 0
From: nova scotia, canada
for my 2c as a diesel mechanic.
250 psi is way to low for a diesel. id have to see the book but if a tech explained to me that 250 psi is acceptable then id have to laugh at him. 250 will not create the heat needed to ignite the diesel. the cps should be very easy with a scan tool to diagnose. the part about the busted compression ring may fit. sorry. an oil scan may be worth the money at this point.
i never read any of your last post so please fill me in. how does it start? what is the color of the exhaust. is it just a clatter or is the engine (at low idle) bouncing around?
250 psi is way to low for a diesel. id have to see the book but if a tech explained to me that 250 psi is acceptable then id have to laugh at him. 250 will not create the heat needed to ignite the diesel. the cps should be very easy with a scan tool to diagnose. the part about the busted compression ring may fit. sorry. an oil scan may be worth the money at this point.
i never read any of your last post so please fill me in. how does it start? what is the color of the exhaust. is it just a clatter or is the engine (at low idle) bouncing around?
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Lead Driver
Joined: Nov 2007
Posts: 5,578
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Beer Boy-Fires off fine (even if I donut let the glow plugs warm up) Idles rough with a defenant misfire, white smoke out the exhaust, (started off cold start only but now anytime) Idles too long= white smoke. p0308 DTC code. Did #8 injector twice... Same symptoms after both times... Swapped IDM with no difference...
Senior User
Joined: Mar 2003
Posts: 397
Likes: 0
From: nova scotia, canada
have you done a compression check on all cyls? with luck it may be an injector gone south. ford should be able to do a cut out test. again the oil scan would help. it could be alot of things, ring, valve, con rod bearing, wrist pin, piston cracked.
for the piston cracked and the ring simply pulling off the crank case vent tube and seeing if theres excessive flow, can point you in the right direction. an oil scan will tell if the bearing is shot pluss if there is to much unburnt fuel in the oil or carbon. pull all the injectors and recheck the orings.
what was the original stealership diagnosis?
for the piston cracked and the ring simply pulling off the crank case vent tube and seeing if theres excessive flow, can point you in the right direction. an oil scan will tell if the bearing is shot pluss if there is to much unburnt fuel in the oil or carbon. pull all the injectors and recheck the orings.
what was the original stealership diagnosis?
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Lead Driver
Joined: Nov 2007
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bad #8 injector... after me and my diesel savvy friend had already put one in... The truck is now down at my friends dealership, he is a trusted colleague and friend of mine from the local speedway. He's also the top rated diesel tech in the greater area, So at least I can trust what he tells me he finds. If he thinks a piston and or ring has gone bad I won't be able to put another motor in it or have it fixed due to the lack of $. So I might as well further investigate it with my diesel savvy friends help... I have saved all the info that I have received from everyone on here throughout my last three threads.
So I suppose tomorrow will be judgment day for my truck I will be sure to post and let everyone know what they say.
Again THANK YOU ALL for your info and insight it is truly priceless! And there aren't enough rep points in the world to say thanks! Without this website I would be in the dark about all the possibilities of what might be wrong. And I would have laid down and eaten $10,000 three weeks ago.
So I suppose tomorrow will be judgment day for my truck I will be sure to post and let everyone know what they say.
Again THANK YOU ALL for your info and insight it is truly priceless! And there aren't enough rep points in the world to say thanks! Without this website I would be in the dark about all the possibilities of what might be wrong. And I would have laid down and eaten $10,000 three weeks ago.
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Senior User
Joined: Feb 2007
Posts: 351
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From: Duluth
Loooooong Shot
What it sounds to me is like the compression ring lost its temper, and no it isn't mad it has to work. It sounds like it lost its temper and when it gets hot it quits working, hence cold engine = compression / hot engine = issues. any thoughts?
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Lead Driver
Joined: Nov 2007
Posts: 5,578
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Wouldnt that be the other way around... It smokes when its cold not warmed up... It just loads up when it idles too long long... I could drive it at RPM all day and it won't smoke till I stop for a min.... Or i dont understand what u mean...lol
Senior User
Joined: Mar 2003
Posts: 397
Likes: 0
From: nova scotia, canada
ive never heard of a ring loosing its temper and then getting it back. usually when a ring goes, it goes. drive as little as possible and you may not have a huge bill. oiling the top of the low piston will show if the ring is the culprit. im sure your bud will find the problem.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Beer boy is correct on the compression.
The little VW diesels that I work on all the time have 21.5/1 compression and that translates into (mathematically) 316 psi, but in the real world they make 425-475. They won't even fire with hot glow plugs below 375 and must be rebuilt.
The little VW diesels that I work on all the time have 21.5/1 compression and that translates into (mathematically) 316 psi, but in the real world they make 425-475. They won't even fire with hot glow plugs below 375 and must be rebuilt.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Beer boy is correct on the compression.
The little VW diesels that I work on all the time have 21.5/1 compression and that translates into (mathematically) 316 psi, but in the real world they make 425-475. They won't even fire with hot glow plugs below 375 and must be rebuilt.
The little VW diesels that I work on all the time have 21.5/1 compression and that translates into (mathematically) 316 psi, but in the real world they make 425-475. They won't even fire with hot glow plugs below 375 and must be rebuilt.