Engine misses upon acceleration ??

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Hi again all. This morning I started the truck (started normally) and when I started off, I had a miss. It smoked quite a bit too. It was about 65 out this morning, so temperature cant be it, though it acts like a "cold" diesel. I'm not sure if the grid kicked on, it usually dont above 60.
I THINK this happened once or twice before, but I thought I was low on fuel, so I discounted it as this.
Any ideas or suggestions? A fuel line leak is what I'm thinking, but any possibilities are welcome.
I'm out of warranty (3/36) but would this be covered under the drivetrain warranty?
Thanks in advance.


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98 Quad cab 4X4 2500 12 valve,5 speed,3. 54 rears, 8' bed. Boost and egt gauges but basicly stock except for a "properly adjusted" AFC. Uniden HR 2510, Texas Star 1200 amp. 55,000 Mi as of 8/21/00.
NRA life member. High power/IDPA.

 

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Drivetrain engine warrenty should cover it. My '95 has done it if I leave it parked for a week or more,I figured it was fuel bleeding back into the tank being displaced with air. Runs fine if I drive it daily.

 

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Have you checked your valves? I set the airgap on mine last weekend and was surprised that my intermittant percieved engine miss is all but gone. It also seems to run better with a new fuel filter. Just a thought...

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98 2500 CC 4X2 12v 5spd 4. 10
97 Dodge Stratus 150HP
92 Harley Fatboy, Dynojet fuel management, Supertrapp 2-1

 

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No I have not done the valves yet. I do the fuel filter every 10k miles though, and it is just about due. I want to run the tank low because I want to get the screen too. The dealer told me they did it during one of the fuel sender episodes, but I do not believe them.

[This message has been edited by The patriot (edited 10-18-2000). ]

 

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patriot,unless you think you got a realy bad tank of fuel I won't mess with the tank filter. It is far easier to cut your old main filter open after you replace it and see what's up. The tank filter isn't much finer than window screen and the fuel sloshing in the tank tends to keep it clean. I've been there and done that,just want to save you some needless work.
Bill

 

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Sorry if I was unclear on this. I meant the screen by the lift pump.
Mine is a 98, so I have the cannister type filter. No need to cut it up, it comes out like that.
Thanks for the tip anyway. I all but forgot about the one in the tank. #ad

If you've ever had a turbo line blow off, it was sort of like that, except when the turbo line blew off, it would just flat out STOP when you stepped on the "go" petal.
With this problem, it goes, but misses and smokes.
When my turbo line blew off,I tightened the p1$$ out of them. (passing a "power choke, had to lay under the truck in the pouring rain to fix it... you know the story..... extremely embarassing. ) I'll take a look at them anyway to be sure they didnt work their way loose just to be safe.
I get my fuel from a private source. Same fuel for the last 4 or 5 fill ups. Pulled a sample, and it "looked" good. I do use conditioner.

[This message has been edited by The patriot (edited 10-18-2000). ]

 

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How long does it miss till it runs ok?
How often do you drive it?

 

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Why not just switch over to Amsoil? The Microbes embedded in the secret formula actually kick your crankshaft and help ease engine wear and also fix any problems from the inside, so there's no need for a mechanic. Ha Ha; actually, in all frankness, your problem can be Water in Fuel--but you can see it if you drain your filter. Aerated fuel is also a possibility--Check the return line for corroded rubber and sometimes the telltale sign of the smell of hot diesel fuel. The steel return line coming out of the injection pump likes to rupture at the welds where the brackets are welded on. Lastly, TIMING. Timing is so precise on a diesel engine and the B series have a history of **** poor timing set at the factory because if it runs within their parameters, it's out the door and ready to install. Timing CAN slip and cause what you feel as missing. White smoke is a telltale sign and is very common on a cold engine in neutral as you bring the revs up over 2000. The harder you rev it, the more smoke will come. Be careful to use kid gloves when doing this on a cold engine. We're not staging a race car here.

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520 Rear Wheel H. P. and 800+ ft/lbs Torque = 15. 5 sec @ 97 mph with the rear wheels spinning in 5th gear going through the traps in the quarter mile. No slicks here, pal, no fancy auto transmission, just the truck in full street trim, 7400 lbs. of Auto Wurks Diesel/BD Performance raging, fire-breathing DIESEL POWER

 

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Jeff, I drive it every day. Does it for the first 1/2 mile or so, then it's OK.
I got under it yesterday looking for fuel line leaks. Not a one. I did the fuel filter, and the strainer in the fuel heater, since I never got to this one yet.
Fuel filter was suprisingly dirty. Guess I'll have to change suppliers. #ad

The screen wasnt too bad (went flying across the driveway when I lost grip of it, so it may have lost some of it's crud)
The fuel filter IS doing it's job. I did feel a noticeable difference.
However the miss is still there, all though very slight now.
I have two possibilities now:
1 Adjust valves. (Never done it )
2 Timing.
No make that three. Plugged cat.
Thanks for the feedback guys. Keep em coming, I dont have this totally figured out yet. #ad



[This message has been edited by The patriot (edited 10-20-2000). ]

 

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BTT
Any ideas left on this? I adjusted my valves, lost the cat, and replaced fuel filters.
It's more noticable in the cold weather, but also happens when it's warm out.
I cant be the only guy this is happening to, can I?
Eric

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98 Quad cab 4X4 2500 12 valve,5 speed,3. 54 rears, 8' bed. Michelin 275 75 16 lr-E. Boost and egt gauges but basicly stock except for a "properly adjusted" AFC. Cat in the garage. Uniden HR 2510, Texas Star 1200 amp. 63,000 Mi as of 1/27/01.
NRA life member. High power/IDPA.

 

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Mine did this, I had a bent pushrod.

 

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Thanks my6eats8's. I'm almost sorry I asked.
Since I'm not BOMBED I guess it can be warrantied.
Any other ideas? I hope he's wrong.
Eric

 

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Eric I hope this is it for your sake, it was only 3. 32 for another, I now have one behind my seat #ad