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Just Here
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79 Posts
Discussion Starter #1
What would cause my truck to cut out when under a heavy load and oil and coolant temps between 180* to 190*. It only seems to cut out above 3000 rpm. The cutting out stops when the oil and coolant temps are at or above 200*. I have ran the truck in an 8th mile a couple of times just seeing if it would clear up and the warmer the truck gets the better it runs, which doesnt make sense to me. TIA David
 

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Registered
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772 Posts
Id guess a issue with the hfcm. what is your fuel pressure ?
 

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Registered
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772 Posts
fuel is probably weak. if it were your injectors your truck would run real rough. hook a scanner up to it to check for codes.
 

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Just Here
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79 Posts
Discussion Starter #6
So after installing a fuel psi gauge it showed that I was running 44 psi at idle I changed both fuel filters and picked up 2 psi upon acceleration it will drop as low as 20 psi. So I'm assuming that is my problem since from what I've read I should be around 60. So is an airdog 2 the best option?
 

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Diesel Sled Head
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1,101 Posts
20 psi equals :( unhappy injectors
 
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