Lack of power...
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From: New Meadows, Idaho
Well I guess most of the problem was the fuel filter. I got most of the power back. Now I went back through my maintence logs and found out that the fuel filter was only 3K old. I must of got a tank of dirty fuel from somewhere.
Well This is the answer to my problem...
I think the rest of the power loss is the winter blend diesel and the fact that the air is get quite cold around here... (10-20*F)
So If I make a winter front for the grill I think it would help bring back a bit of the power by keeping the ol' girl warmer... What do you guy think?
Well This is the answer to my problem...
I think the rest of the power loss is the winter blend diesel and the fact that the air is get quite cold around here... (10-20*F)
So If I make a winter front for the grill I think it would help bring back a bit of the power by keeping the ol' girl warmer... What do you guy think?
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From: Dufur Or
winter fronts would be nice it would keep your engine little warmer. what i did once my truck turned into a paper weight cause of the winter fuel blend i started running a fuel conditioner for two reason to help with the no gelling and to gane back the certane levals lost in the winter fuel. boths things have helped a bunch
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From: Texas/Oklahoma Border
I don't think Winter Fronts will add noticable power, but they are a nice addition.
I have been following this thread with confusion. My first thought was your problem was the fuel filter...BUT you said, in your original statement of the problem, you had 11 psi fuel pressure at WOT...3,000 rpm.
After filter change you had 7.5 psi FP????
Because of this, I'm assuming your gauge is reading PRE filter pressure? Might want to change that to an after filter reading for better feed back on filter condition!
RJ
I have been following this thread with confusion. My first thought was your problem was the fuel filter...BUT you said, in your original statement of the problem, you had 11 psi fuel pressure at WOT...3,000 rpm.
After filter change you had 7.5 psi FP????
Because of this, I'm assuming your gauge is reading PRE filter pressure? Might want to change that to an after filter reading for better feed back on filter condition!
RJ
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From: New Meadows, Idaho
Originally Posted by rjohnson
I don't think Winter Fronts will add noticable power, but they are a nice addition.
I have been following this thread with confusion. My first thought was your problem was your fuel filter...but you said, in your original statement of the problem, you had 11 psi fuel pressure at WOT...3,000 rpm.
After filter change you had 7.5 psi FP, same conditions????
Because of this, I'm assuming your gauge is reading PRE filter pressure? Might want to change that to an after filter reading for better feed back on filter condition!
RJ
I have been following this thread with confusion. My first thought was your problem was your fuel filter...but you said, in your original statement of the problem, you had 11 psi fuel pressure at WOT...3,000 rpm.
After filter change you had 7.5 psi FP, same conditions????
Because of this, I'm assuming your gauge is reading PRE filter pressure? Might want to change that to an after filter reading for better feed back on filter condition!
RJ
It's hooked to the bottom of the filter can which goes directly to the VP44... That's why I'm still confused about this... Filter looked bad and the fuel pressure didn't change much... So I'm assuming that there is a problems still but the dirty filter is part of it...
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From: New Meadows, Idaho
Originally Posted by HOHN
If it was the air filter, you'd have black smoke and high EGT. It's definitely a fuel problem. You are getting plenty of air to burn the fuel. But you aren't getting enough fuel.
So think this through:
What conditions must be met for the computer to send fuel to the engine? What can prevent the fuel from actually getting there?
In order to send fuel to the engine, the computer must see 1) APPS signal telling it the pedal position asking for more fuel, 2) MAP sensor reading telling the ECM that there's enough air to burn the fuel, 3) IAT tells the ECM how dense the air is, so it can calculate max allowable fueling vs boost.
What can prevent the fuel requested from getting to the engine? 1) Clogged fuel filter (which you changed), 2) Obstructed fuel pickup in the tank, due to bad fuel or debris 3) a kinked or dented fuel line that restricts flow 4) a leak in the fuel circuit anwhere from tank pickup to injector.
Personally, I'd suspect the MAP sensor first, then possibly the APPS. MAP is cheaper, so replace it and go from there. Or at least TEST it. Voltages should be in the factory service manual, IIRC.
jmo
So think this through:
What conditions must be met for the computer to send fuel to the engine? What can prevent the fuel from actually getting there?
In order to send fuel to the engine, the computer must see 1) APPS signal telling it the pedal position asking for more fuel, 2) MAP sensor reading telling the ECM that there's enough air to burn the fuel, 3) IAT tells the ECM how dense the air is, so it can calculate max allowable fueling vs boost.
What can prevent the fuel requested from getting to the engine? 1) Clogged fuel filter (which you changed), 2) Obstructed fuel pickup in the tank, due to bad fuel or debris 3) a kinked or dented fuel line that restricts flow 4) a leak in the fuel circuit anwhere from tank pickup to injector.
Personally, I'd suspect the MAP sensor first, then possibly the APPS. MAP is cheaper, so replace it and go from there. Or at least TEST it. Voltages should be in the factory service manual, IIRC.
jmo
http://www.dodgedieseldatabase.com/map_sensor.htm
So now I've got a way to check it now...
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From: New Meadows, Idaho
Another tidbit of information I found in regards to lack of power...
http://www.dodgedieseldatabase.com/low_power.htm
http://www.dodgedieseldatabase.com/low_power.htm
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From: Mission Viejo, CA
Mopar1973man, not to get off subject; looking at the pic above, you need to add a pigtail to your LP harness. I noticed, when I changed mine out, that the harness is too taught, which may cause the electical fitting on the LP to fail ... that's what happened to mine.
I remember telling someone else about this, maybe it was you, maybe you took care of it, if not ... make sure you do!
I remember telling someone else about this, maybe it was you, maybe you took care of it, if not ... make sure you do!
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Originally Posted by Mopar1973man
Another tidbit of information I found in regards to lack of power...
http://www.dodgedieseldatabase.com/low_power.htm
http://www.dodgedieseldatabase.com/low_power.htm
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