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Engine boggin down

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Old Aug 16, 2007 | 11:59 AM
  #1  
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Engine boggin down

Here's the situation guys... When I rev the engine up out of gear it will only hit 2500 before it starts the bog down and blow blue/white smoke. Actually, I can't even get it passed 2500. However, when I'm traveling down the road it doesn't do this. Sometimes under hard excelleration it will bog.

Does this sound like a clogged fuel filter? The last time I changed it was in May about 5000 miles ago. Probably not even that many miles. I also cleaned the FPR screen aswell. Any suggestions?
 
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Old Aug 16, 2007 | 12:32 PM
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I would change out the flter again and give it a healthy dose of diesel kleen or similar. My first thought was it could be injector o-rings though because of the smoke color
 
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Old Aug 16, 2007 | 01:13 PM
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Originally Posted by FARM69
Here's the situation guys... When I rev the engine up out of gear it will only hit 2500 before it starts the bog down and blow blue/white smoke. Actually, I can't even get it passed 2500. However, when I'm traveling down the road it doesn't do this. Sometimes under hard excelleration it will bog.

Does this sound like a clogged fuel filter? The last time I changed it was in May about 5000 miles ago. Probably not even that many miles. I also cleaned the FPR screen aswell. Any suggestions?
Check the fuel pressure at the schraeder on the FPR....
 
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Old Aug 16, 2007 | 01:22 PM
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I know it sounds like witch doctor stuff but

put 1 quart of 2 stroke oil in about half a tank of fuel (about 7-10 gallons) drive it for several miles and check again, this cleared up a similar issue in my truck. I currently run 1/2 to 1 quart of 2 stroke oil per tank every fill up.
 
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Old Aug 16, 2007 | 01:23 PM
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I also have smoke when I start it up in the mornings too... I'll change the filter and hopefully that helps.
 
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Old Aug 16, 2007 | 01:31 PM
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My truck smokes less with the 2 stroke oil
 
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Old Aug 16, 2007 | 02:15 PM
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I'll have to give that one a shot too. I'm gonna get a fuel filter when I run into town tomorrow.

If it was an o-ring I would think it would smoke at every startup.
 
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Old Aug 17, 2007 | 11:27 AM
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Ok, changed the filter this morning and tried it again. It still won't go past 2500 when its not in gear. Excessive smoke once it starts boggin.

In gear, she'll hit 3k in no time.

I picked up a bottle of two stroke oil too.

Could the reason be that I'm running B20?

A part of me wants it to be an O-ring just so I can justify getting stage 1's while I'm at it.
 
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Old Aug 17, 2007 | 11:28 AM
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Ok, changed the filter this morning and tried it again. It still won't go past 2500 when its not in gear. Excessive smoke once it starts boggin.

In gear, she'll hit 3k in no time.

I picked up a bottle of two stroke oil too.

Could the reason be that I'm running B20? Or maybe low HPOP oil?

I also recently changed the oil too... no change.

A part of me wants it to be an O-ring just so I can justify getting stage 1's while I'm at it.
 
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Old Aug 17, 2007 | 11:29 AM
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classinc injector o-rings, slap the 10k mod in and odds are it will go away for now or at least get alot better. but in the end you need o-rings
 
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Old Aug 17, 2007 | 11:53 AM
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yeah its doubtful its a fuel supply issue cause it requires to run down the road then it does in park to rev the engine. Could very well be o-rings like Joe said.
 
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Old Aug 17, 2007 | 12:01 PM
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Is it bad to run it like this for awhile? I have another pickup to drive, but it's not as fun. haha.

I still don't understand why it only does it when it's out of gear? Maybe because there's so much excess fuel?

I think I'm just gonna go ahead and get some stage 1's since I'll have the injectors out.

Thanks for the help guys.
 

Last edited by FARM69; Aug 17, 2007 at 12:04 PM.
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Old Aug 17, 2007 | 04:31 PM
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they react differently when the load is applied, just the way the pcm works the oil supply, wont hurt anything unless you are leaking fuel into the oil, easy check, pull the dipstick...if its not overfull its ok to run it. i ran mine like that for almost30k before i finaly got time to do the o-rings. it will get a little worse as time goes on to the point that is hesitates at the same rpm revving up and driving but if you dont have the time dont sweat it, no harm will come as long as the fuel stays out of the oil, keep an eye on the fuel filter as it will get oily too, no harm either just change it out a little more often. dont forget we have idiot lights for that one....lol. the o-rings will cost you about 80 bucks for all 8 from ford and a day of your time to install
 
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Old Aug 17, 2007 | 04:34 PM
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Joe, I've been planning to upgrade my injectors as well. Do you think this is good time to do that as well?

How hard is it to replace the o rings?
 
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Old Aug 17, 2007 | 04:43 PM
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Try looking here....
https://www.ford-trucks.com/wiki/tik...hp?articleId=9
 
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