Stall problem or not?
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Junior User
Joined: Dec 2004
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From: TEXAS
Stall problem or not?
Not sure if this is a problem or just part of the new 6.0. I was waiting to cross a 4 lane highway sitting still at a stop sign. There was a car coming, but still far enough away that I should hae been able to make it with no problems. I stepped on the pedal, and my 05 f250 just barely lurched forward... I then floored it and it took between 3/4 and a full second for the thing to finally kick in and go! Just wanted to get a few opinions to see if this is "normal" for a non-cable throttle system, or do I have a problem that needs to be looked at. I have since tried it again, and this seems to be an everytime occurance.
Posting Guru
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It's hard to say without being you and having your experiences. A turbodiesel 3/4 ton pickup with a fly-by-wire throttle does not feel like or accelerate like a gas engine car. So I might drive someone's truck and say "works great!" while they have different expectations of it. There is some normal unavoidable off the line lag... but then there have also been real issues which caused actual problems, so there could be something wrong with your truck too.
I know that with all the Powerstrokes I've driven (7.3 and 6.0), flooring it is pretty much never the way to get maximum acceleration. You eventually develop a feel for the pedal travel which gets the beast moving the fastest, though obviously with someone bearing down on you at highway speeds, your first instinct is going to be to put it to the floor...
Duncan
I know that with all the Powerstrokes I've driven (7.3 and 6.0), flooring it is pretty much never the way to get maximum acceleration. You eventually develop a feel for the pedal travel which gets the beast moving the fastest, though obviously with someone bearing down on you at highway speeds, your first instinct is going to be to put it to the floor...
Duncan
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Junior User
Joined: Dec 2004
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From: TEXAS
I agree about flooring it that you don't get the results as from a gasser, but my old 7.3 with the superchip, would flat out go from a dead stop if I needed it to... it was just a situation which almost caused me to have a toyota permanantly embedded in the side of my ford.
I will take your advice though and test another vehicle to see if it reacts the same way... thanks
I will take your advice though and test another vehicle to see if it reacts the same way... thanks
Cargo Master
Joined: Jun 2003
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From: Carlsbad, California
What I do if I'm expecting to need to bolt away from a stop is to hold down the brake with the left foot and press the throttle a bit with the right foot until I've build some boost. Let the truck rev to say 1000 RPM or so, though even 800 RPM will start to build some boost.
Vooala, no turbo lag. The beast will leap away from the line. Build too much boost, as in revving to 2000 RPM and you'll leave the line with the rear end smoking if in 2WD.
Vooala, no turbo lag. The beast will leap away from the line. Build too much boost, as in revving to 2000 RPM and you'll leave the line with the rear end smoking if in 2WD.
Posting Guru
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The ease-into-the-pedal strategy does essentially the same thing without the wear and tear on the torque converter. Get the truck rolling and get some RPMs up before you really start to push the pedal home.
As to the stock 6.0 being slower right off the line than the 7.3 with the superchip... well, that's entirely possible! I guess ask the guys who have added the tuners to their 6.0 whether that similarly cures any off the line lag. I bet it does.
Duncan
As to the stock 6.0 being slower right off the line than the 7.3 with the superchip... well, that's entirely possible! I guess ask the guys who have added the tuners to their 6.0 whether that similarly cures any off the line lag. I bet it does.
Duncan
Post Fiend
Joined: Apr 2004
Posts: 19,098
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From: Great State of Texas
It shortens the lag time...plus when she goes...she goes really, really quick. I am still amazed at what a little accidentally and mysteriously appearing programer can do.
Or so I've heard.
Or so I've heard.
