Check out these pics... Really!!!

[snw blue by you]

Pics of the T-Stats from an '08 550

 

 

 

 

[LARRY BRUDZYNSKI]

It's looks like goo. Nice touch having the DTS on your screen at the same time.

[snw blue by you]

Hey Larry.

Nope it's not goo.

[Aaron]

Looks like fur, or a rag.

[Jeff_E]

Is it what's left of a mouse?

[jimmy57]

The one on the left has bent the bridge opening I assume because the lint packed in and caused a wad blockage, Did the other one get blocked and just wouldn't open either?

Oh do tell what the foreign matter is.

 

I know! I know! Aftermarket coolant filter came apart!!

[Keith Browning]

Tampon. (not you Jimmy, the debris)

[LARRY BRUDZYNSKI]

Tampon. (not you Jimmy, the debris)

Keith, You have to many women in your house?????

[cbriggs]

Quote:

Tampon. (not you Jimmy, the debris)

Hey, I already said that. I think i put it on the other thread though.

[Keith Browning]

Originally Posted By: Keith Browning

Tampon. (not you Jimmy, the debris)

Keith, You have to many women in your house?????

 

Nope, too many customers on the rag.

[LARRY BRUDZYNSKI]

[jimmy57]

If you repair this truck and it is back with the same problem in one month what are you gonna say then???

[Aaron]

I like the coolant filter came apart option. guy using a roll of shit tickets as the filter, probably.

[Jim Warman]

You don't remember those oil filters by any chance, do you? The taxi drivers used to love them up until the inevitable happened.

[LARRY BRUDZYNSKI]

I remember those Jim we used to call those Elephant Tampons. Used to use them in the old Cummins 855's. They went horizontal behind the lube pumps.

[dieseldoc]

In all the years as a truck mechanic I have never seen a coolant filter come apart. I am not saying it couldnt happen. If you ask me Ford should be installing coolant filters from the factor. My 06 had casting sand stuck in the thermostat twice. In fact when you looked in the degas bottle you could see it in the bottom. I flushed the system twice and installed a coolant filter. I havent had anymore thermostat troubles since than. Just food for thought.

[gengor]

Looks like wax from inside the t-stats.

[Aaron]

Ok, well, it's past the 13th.

 

WE WANT ANSWERS>

[Gofaster23]

Diesel fuel maybe? I had an 08' F-250 last week that would not reach operating temperature, had DTC's for thermostat monitor. ECT/EOT pids way off so I figured it needed thermostats. I removed the thermostat assembly, find the high flow thermostat hyper extended but both are covered in that goo in the pic and it smelt like diesel. I ended up finding gobs of diesel fuel in the front cover. I did the usual fuel in cooling system diag, found no leaks at the injector cups or cylinder heads. I ended up putting two cylinder heads on to correct the "Goo" concern. But I don't think diesel fuel is the goo in the pic, it just looks like it. On the truck I worked on, all rubber gaskets on the thermostats were eaten away.