Missing problems
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Missing problems
Hey guys i have a 1996 7.3 powerstroke and iv noticed that after i first start the truck and go to take off after about 2 maybe 2.5 rpms it misses and blows white smoke. If you keep holding down the fuel it stops and rpms continue rising like they should and the motor sounds fine.
It only does this right after you start it even if you have been running it all day.Now I just did get it running last week ( turns out the ipr was bad) but i had sprayed some either to try to get it to run, wondering if maybe the air filter had left over either in it still.
Any ideas?
It only does this right after you start it even if you have been running it all day.Now I just did get it running last week ( turns out the ipr was bad) but i had sprayed some either to try to get it to run, wondering if maybe the air filter had left over either in it still.
Any ideas?
Post Fiend
Joined: Dec 2010
Posts: 10,121
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From: Orrville, Ohio
A couple of things come to mind. First off, be really careful using ether in these engines. It is not recommended. These engines have glow plugs in the cylinders that glow cherry red while you're trying to start them. If ether comes into contact with one of these glow plugs while it is hot, it can prematurely detonate and frag all kinds of internals in the engine. If you must use ether, disconnect the glow plug relay and make sure you let everything cool before trying the starting fluid.
Second, pull your fuel filter and take a look at it. I bet it is all black and if you look at the fuel in the fuel bowl (filter housing) I bet it looks dark too. If this is the case, the injector o-rings need to be replaced. They tend to blow and leak high pressure oil into the fuel, and since they're leaking HPO, you tend to get that hesitation around 2-2.5k RPM like you're describing. If you're handy with a wrench, you can replace the o-rings yourself for less than $100. Let us know what you find and if you decide to tackle the o-rings we can give you a step by step that will guide you through doing it.
Second, pull your fuel filter and take a look at it. I bet it is all black and if you look at the fuel in the fuel bowl (filter housing) I bet it looks dark too. If this is the case, the injector o-rings need to be replaced. They tend to blow and leak high pressure oil into the fuel, and since they're leaking HPO, you tend to get that hesitation around 2-2.5k RPM like you're describing. If you're handy with a wrench, you can replace the o-rings yourself for less than $100. Let us know what you find and if you decide to tackle the o-rings we can give you a step by step that will guide you through doing it.
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alright well i checked the fuel filter and the bowl and nothing everything looks clean. What else is there that i can check? Also it only seems to happen when first start the truck and then after that only when i stomp on the fuel
Hotshot
Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
Did you buy a new or reman IPR?
Sounds like a sticky IPR to me.
You cannot actually "rebuild" an IPR.
You can give them a shred of hope, but not rebuild them.
Unplug the ICP and start it to check if the IPR is sticking on you a bit.
You did change your oil after the IPR change?
Sounds like a sticky IPR to me.
You cannot actually "rebuild" an IPR.
You can give them a shred of hope, but not rebuild them.
Unplug the ICP and start it to check if the IPR is sticking on you a bit.
You did change your oil after the IPR change?
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It's a new IPR and no I did not change the oil filter after th IPR was changed. I will however try unplugging to ICP in the morning. Thanks.
I also found that the valve cover gasket plug was burnt, would that cause my problem?
I also found that the valve cover gasket plug was burnt, would that cause my problem?
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