97 7.3
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Joined: Mar 2021
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From: Crawfordsville indiana
97 7.3
I’m honestly at a loss for words I didn’t want to have to turn to you guys but after two weeks of throwing new parts at this I’m unsure of what’s actually wrong, the truck died on me a couple weekends ago on my way home I didn’t think it was a big deal had burned pins in my uvcwh so I replaced it checked to make sure they had power and it still just cranks 200rpm big cloud of white smoke but will start from ether it almost acts like it’s not getting fuel but draining the bowl it refills any help from anyone would be greatly appreciated
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From: western SD
Have you checked the fuel pressure? The low pressure side of the pump is working, as it is filling the bowl, but the high side pressure may not be there. IIRR you need 20 lbs. WHILE CRANKING, Higher is better.
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From: Crawfordsville indiana
To be entirely honest I don’t have a clue how to check the fuel pressure I’m just making my best guesses at what’s wrong how do I check the high pressure side?
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From: western SD
You can check the fuel pressure with a cheap pencil type tire gauge, at the schraider valve on the fuel bowl. The engine has to be cranking over to get a reading, as these motors have a mechanical fuel pump, which is a 2 stage pump. I sucks fuel from the tank to the fuel bowl, then out of the bowl to the fuel rails under high pressure. As I stated above, you need at least 20 lbs. while cranking.
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From: Crawfordsville indiana
You can check the fuel pressure with a cheap pencil type tire gauge, at the schraider valve on the fuel bowl. The engine has to be cranking over to get a reading, as these motors have a mechanical fuel pump, which is a 2 stage pump. I sucks fuel from the tank to the fuel bowl, then out of the bowl to the fuel rails under high pressure. As I stated above, you need at least 20 lbs. while cranking.
well low and behold I just checked it and it did nothing to the tire pressure gauge so I checked my tires to make sure it worked lol but since it showed 0 at the valve does that mean the fuel pump itself is bad? if so what would cause the truck to still bellow white smoke like it’s getting fuel?
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From: Crawfordsville indiana
yeah I had my little brother cranking while I was checking it showed 0 psi
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Lead Driver
Joined: Mar 2006
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From: western SD
well low and behold I just checked it and it did nothing to the tire pressure gauge so I checked my tires to make sure it worked lol but since it showed 0 at the valve does that mean the fuel pump itself is bad? if so what would cause the truck to still bellow white smoke like it’s getting fuel?
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There are a few different places to get it. Some people use irates kit others including me use mark fugazottos kit
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