Blowing Coolant

146,465

Asked by Nov 08, 2014 at 11:05 AM about the 2005 Ford F-350 Super Duty XL 4WD Crew Cab LB

Question type: Maintenance & Repair

Hi guys, here's the deal. My son has a 2005 F-350 Ford Powerstroke 6.0 started blowing coolant out tailpipe. He took it to mechanic and told him it is EGR valve stuck open. I don't know much about Powerstrokes, and if that is even possible for the EGR,to cause that.  Any and all suggestions highly appreciated, thanks

4 Answers

217,535

If you have coolant coming from the exhaust , yes you can have a faulty egr and cooler. But if that is OK then it might be your head gaskets.

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35

Do you have compression bubbles in your cooling system? Remove radiator cap with engine running. If it has bubbles coming out you definitely have compression in it. Could be head gasket, could be cracked head. Either way, not good.

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Best Answer
146,465

Thanks to both of you.. I will call him and have him try that test EmmaK, he lives in Arizona and I'm here in LA.

7 out of 7 people think this is helpful.
146,465

No bubbles. Opened cold, allowed to warm up for over 20 minutes to make sure, and normal coolant flow. Put cap back on and hoses did not get pressurized too much. So far so good...one of the O-rings on the EGR valve was gone..just not there! Fingers crossed.

7 out of 7 people think this is helpful.

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