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Old 07-27-2009, 03:50 PM
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diesel fuel in coolant system

Wondering if anyone has had this problem. I have a 2002 7.3 L excursion, smells like diesel fuel, and seems to be leaking into radiator overflow. What's the fix and how much?
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Old 07-28-2009, 11:37 AM
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The problem is likely a fuel injector cup in one of the heads. This is a brass cup that is pressed into the head and the injector sits in the cup. If the cup leaks, fuel can enter the cooling system. Not sure about the price but it will be expensive. Ususally the head has to be removed in order to prevent metal from entering the engine as a large tap is used to extract the cup.
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Old 07-28-2009, 12:53 PM
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from what I have read I aggree with the diagnosis, I think if its front 2 injectors it can be fixed in vehicle. keep your fingers crossed.
good luck.

check the nitrate levels in the antifreeze, might have caused it "cavitation"
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Old 07-28-2009, 01:01 PM
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yea like they have said it is usually the injector cups. It is possible to do all 8 with out pulling the heads. just takes the right tool. where are you located?
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Old 07-28-2009, 04:24 PM
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you can do all 8 in the vehicle, but the back ones on each side are a b%^*h.
and hope they don't spin around in there, that makes it a real B*&^h to get out.
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Old 07-31-2009, 05:24 PM
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I have a 1999 that seems to have the same problem . Can anyone suggest where to look for someone to make the repairs ? I'm in northeastern Ohio .
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Old 08-01-2009, 09:37 PM
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Me had same problem......steeler got me for $3500. I hope you can get one of these fellas to help ya with the cups and save some dough! I looked up the parts....takes one tool to remove cups and one to install...(acording to ford) Im sure someone has a trick or two out there...good luck!
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Old 09-01-2009, 02:41 AM
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fuel in coolant

I was digging around on the web and found this site whitakertools.com,the site says it has a tool to remove the cups without pulling the heads,check it out,i have the same problem with my truck now.If the tool works,im going to try it,and will let you guys know.
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Old 09-01-2009, 06:33 AM
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redone heads on ebay reasonable,??? Thats what i would do.
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