Fuel In Coolant
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Senior User
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From: Upstate NY
Fuel In Coolant
This afternoon I discovered that my coolant reservoir was overflowing. I opened the cap an noticed it was over-full with diesel fuel. I removed about a quart of diesel fuel off the top until it looked like just green coolant. Any words of advice where to start to look for a leak? Was planning to pull the motor within the month to replace the oil pain, rear main seal and flywheel/clutch. Oh its a 99 7.3, 260,000miles....Thanks for any input!
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Joined: May 2009
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From: Pea Ridge, AR
Generally fuel in coolant is due to cracked injector cups. You wouldn't have to pull the motor to replace them, but if you were going to anyway, it would be very easy.
Clay has them in stock, and also has a special tool Riffraff Diesel: Motorcraft 7.3L Injector Cup Kit
Clay has them in stock, and also has a special tool Riffraff Diesel: Motorcraft 7.3L Injector Cup Kit
Last edited by BigAlsPSD; Jul 5, 2012 at 07:05 PM. Reason: Trade Fuel for Oil
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From: Kiowa CO
is a BAAAD MAN
Joined: Apr 2005
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From: Winston Salem NC
Generally fuel in coolant is due to cracked injector cups. You wouldn't have to pull the motor to replace them, but if you were going to anyway, it would be very easy.
Clay has them in stock, and also has a special tool Riffraff Diesel: Motorcraft 7.3L Injector Cup Kit
Clay has them in stock, and also has a special tool Riffraff Diesel: Motorcraft 7.3L Injector Cup Kit
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Senior User
Joined: Nov 2004
Posts: 147
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From: Upstate NY
Ok thanks for the info! This truck is not a daily driver just a work truck that get used sometimes once a week. I was planning on pulling the motor and doing other work anyways. Thanks again!
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