I believe I have a bad oil cooler, but I am somewhat questioning my EGR cooler as well. I plan to replace them both, but I noticed today that my coolant level is a little low in the degas bottle. Should I fill with distilled water or buy the recommended coolant? If I need coolant, what kind should I use?

 

I leave my coolant under the loww mark about 1/2 inch or it will puke it out

alittle distilled water shouldnt hurt test with a coolant hydro meter to verify the proper mix ratio 50/50

does the coolant look like gold or is it red coolant

also get some gaugesa to watch ECT vs EOT spread your truck has the square EGR cooler that fails alot be careful

 

I have a Scangauge II, and am watching my temps. That is how I came to the fouled oil cooler conclusion.

 

that SGII is a great unit

have you pulled the egr valve to see if there is any coolant in there

 

Not recently. I had planned to buy the oil cooler and egr delete and just do both while I am in there.

 

thats what I did

just keep an eye on the coolant leval if you suspect your losing coolant stop driving it
It doesnt take much coolant in the cylinders to cause Major problems when it overpressurizes the cylinders & heads

try parts guy ed he has the best prices Iv seen on oil coolers

you also may want to update the STC fitting on the HPOP since you have an 05

are you going to do the work

 

Yes, I had planned to do the work. I hear it is a pain, but I would rather do it myself and save some money. Also, I don't think I have a head gasket problem because I have not seen any evidence of puking out of the degass bottle, white or blue smoke, etc. I just got the wrench light at one point, got the Scangauge and have seen 20-25 degree spreads. Since the wrench light, I have not driven more than 25 or 30 minutes at a time just so I can monitor it. I won't add much distilled water because it isn't very far down.

 

If you are losing cooant, it's GOT to be going someplace. If not out your bottle, it may be out the exhaust.... and if there, you risk the hydro-lock problem! Beware!!!!!

 

just curios but wont the SGII pick up the code for the wrench light

Lots of people here have done there oil/egr coolers there not to bad

I did egr/oil coolerss about a month ago and I had alot of great help from everyone on here FTE ROCKS

 

Yes, I have heard that the SGII will pick up the codes..... I just received mine in the mail TODAY, so I can not confirm this....but the paperwork says it will!

 

good luck with it sometimes that SGII will open a can of worms
but better to find out like that then brokedown on the side of the road

I caught a bad oil cooler with my SGII

 

I use an Innova 3130 to get my codes, I didn't buy the SGII to pull codes anyway......

 

I run the innova 3120 for my codes

I think the SGII is a better gauge tha code reader

one day I will get the AE that thing looks awesome the way you can command certain things to run certian ford diagnostics tests

 

I am losin coolant somewhere. Don't know where it's goin I don't see wet spots when I park it. Goin to take to a dealer to let them run a full scan an test on everything to see if they can find where it's goin. An to find out why it acts like it skips when in overdrive an the torque converter is locked.

 

have you pulled the egr valve to see if theres coolant in there

The Bulley Dog is a tranny killer and it sounds like its claimed another victim