rust in degas bottle, few symptoms here, expert needed
#1
rust in degas bottle, few symptoms here, expert needed
E99 f250, 197k, cant pull codes, think computer is bad. Anyway symptom is rust in coolant system, i believe this is a bad oil cooler gasket. just changed oil and put dye in it as I believe I noticed oil running down from top of filter housing. excessive buildup of oil on block in same area. Have fluid coming out tail pipe, slightly using coolant.
And it gets better , excessive blowby with fill cap upside down on oil filler neck, also white smoke. Havent done compression test yet. Dida few things like EBPV delete, retightened all the intercooler boots and it really does scoot down the road, although excessive white smoke when accelerating. Exhaust smells like fuel, not coolant.
And it gets better , excessive blowby with fill cap upside down on oil filler neck, also white smoke. Havent done compression test yet. Dida few things like EBPV delete, retightened all the intercooler boots and it really does scoot down the road, although excessive white smoke when accelerating. Exhaust smells like fuel, not coolant.
#2
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First, I am not an expert. I have dealt with a somewhat similar situation in the past.
You have several different issues going on. An oil cooler rebuild is needed as you know.
There is a fuse that powers the OBDII port. Check it out. If the truck runs and everything functions then the PCM is likely OK. Also, if the fuse for the OBDII port is good, you will probably need to locate a a code reader that is compatible with our trucks: most are "NOT" compatible. Forscan (free downloadable program), a $15 USB to OBDII connector and a windows computer will read any code the PCM throws. For more info: http://www.ford-trucks.com/forums/14...the-cheap.html
Next, and this is a best case guess: Sounds like you have a cracked injector cup or compromised cup sealant. FWIW, IH/Ford changed the sealant specs in the later 7.3Ls: approximately 2/2/99+ build engines SN 940614+ = L99 . Check your fuel filter to see if it is black in color from oil. Also, conduct an advanced search here for the "Cody Test" which will determine if there is a compromised o-ring on one or more injectors. If you hear air escaping under the valve cover during the test, remove that valve cover and test the torque on the injectors on that side. If one or more is extremely loose: less than 60 in/lbs, I'd be willing to bet that the cup in that/those holes is/are cracked or the sealant has been compromised. An extremely loose injector would allow fuel to bypass the copper seal at the tip of the injector, hence the white smoke that smells like fuel, but would not explain the coolant loss like a cracked cup or compromised sealant would.
A cup that is cracked only near the tip of the injector coupled with o-rings that are shot and or an extremely loose injector would allow extra fuel into the cylinder especially while running due to the fuel being pressurized at 50+ PSI. Then, once the engine is turned off, the fuel pressure dissipates almost immediately. When this happens, the coolant is still pressurized at up to 16 PSI, assuming that the engine is warm/hot, and would displace the fuel in the cup.
For all of this to happen, the cup fracture would have to be in the early stages or else you would most likely experience a hydro-lock of the engine.
Post a couple of pictures of the degas bottle contents. Is there soot mixed in with the coolant?
Ultimately, you may wind up removing both valve covers and pulling all of the injectors to test for a cracked or leaking cup. If that is the case, check back with us and we'll give you the procedure for that test.
You have several different issues going on. An oil cooler rebuild is needed as you know.
There is a fuse that powers the OBDII port. Check it out. If the truck runs and everything functions then the PCM is likely OK. Also, if the fuse for the OBDII port is good, you will probably need to locate a a code reader that is compatible with our trucks: most are "NOT" compatible. Forscan (free downloadable program), a $15 USB to OBDII connector and a windows computer will read any code the PCM throws. For more info: http://www.ford-trucks.com/forums/14...the-cheap.html
Next, and this is a best case guess: Sounds like you have a cracked injector cup or compromised cup sealant. FWIW, IH/Ford changed the sealant specs in the later 7.3Ls: approximately 2/2/99+ build engines SN 940614+ = L99 . Check your fuel filter to see if it is black in color from oil. Also, conduct an advanced search here for the "Cody Test" which will determine if there is a compromised o-ring on one or more injectors. If you hear air escaping under the valve cover during the test, remove that valve cover and test the torque on the injectors on that side. If one or more is extremely loose: less than 60 in/lbs, I'd be willing to bet that the cup in that/those holes is/are cracked or the sealant has been compromised. An extremely loose injector would allow fuel to bypass the copper seal at the tip of the injector, hence the white smoke that smells like fuel, but would not explain the coolant loss like a cracked cup or compromised sealant would.
A cup that is cracked only near the tip of the injector coupled with o-rings that are shot and or an extremely loose injector would allow extra fuel into the cylinder especially while running due to the fuel being pressurized at 50+ PSI. Then, once the engine is turned off, the fuel pressure dissipates almost immediately. When this happens, the coolant is still pressurized at up to 16 PSI, assuming that the engine is warm/hot, and would displace the fuel in the cup.
For all of this to happen, the cup fracture would have to be in the early stages or else you would most likely experience a hydro-lock of the engine.
Post a couple of pictures of the degas bottle contents. Is there soot mixed in with the coolant?
Ultimately, you may wind up removing both valve covers and pulling all of the injectors to test for a cracked or leaking cup. If that is the case, check back with us and we'll give you the procedure for that test.
#3
well so far found passenger side bank injectors loose, and also #8 so tightened them down and that stopped the oil flow and reduced smoke considerablly although some at start up and higher rpms. build date 8/98 so still trying to determine what fuse is good for the under dash that powers data link connector. have two scanners an old sct and scangage and yes I know they arent as good as autoenginuity. there was a time I had power to data link and had no codes. At one time I freshened up the maxi fuses and under dash with sand paper and also firewall harnes connection with aa wire brush to the pins. Only thing I remember is the #23 for fuel bowl/idm. still on it, considering new valve springs as these are the weakest link in the motor anyway, thanks
#5
#6
was able to pull codes and only have some EBPV codes since that was deleted. It was #3 under dash fuse. drained all coolant and rinsed out radiator while I changed the upper radiator hose. I put some dye in the oil to find the leaks. Anyway im going to install comp cam valve springs and valve seals in an effort to freshen this thing up. Most likely do a compression test at that time. Of course then a buzz test and then o rings.
#7
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If time is an issue, Ford or IH/Navstar dealer but be prepared to pay twice as much.
I have not found a national chain parts store that carries "Alliant" and have never seen "text" on an o-ring: my middle aged eyes could have missed it though.
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