"These trucks are dogs"
#1
"These trucks are dogs"
I am quoting my long time mechanic friend after giving him my truck to drive around all day to once and for all try to figure out my warm start weird crank and 2000 rpm hesitation. He owns an 05 by the way and yes I will agree that my 99 had more guts. He did'nt find anything at least diagnostically. Everything looks good, fuel trims, ignition and on and on. He noticed the hesitaion and said the title quote. He also said that what I described about my warm start he did'nt neccisarily experience and said I was paronoid. I swear it has all the symptoms of a leaky injector. A "flooded " type experience on warm starts and sometimes an extra long crank. It usually has an instantaneous start with almost no normal crank. It just sounds and feels weak. i practically have new everything over the last 10 months both fuel related parts and electrical, battery, starter, tune up and on and on. I've pulled the fuel rail and looked for leaks several times. My question is- can I have a bad injector even though my fuel trims are good? Or am I looking in the wrong place? I don't want to just live with it but fear that I may have to. All of my grounds are clean and tight by the way. I drove an hour to my mechanic friend who did'nt charge me for this and he was kind of my last hope.
#2
Moderator (Ret.)
His statement "These trucks are dogs" makes no sense to me. I have a 2007 with the 4.6; it has 130K on its odometer, and it runs fantastic, with plenty of "giddy-up" when I'm on it. All of the 5.4 owners boast on how poky the 4.6's are, yet when I come across a post such as yours, I'm puzzled.
Is there a way to dump the guts/programming of your stock PCM to see if the maps are messed up? What you describe to me are symptoms of timing; not enough advance at specific RPM ranges.
If you were in my neck of the woods, I'd have you drive my truck; you'd then see that the "baby brother of the 5.4 has plenty of guts, and therefore your 5.4 should be driving circles around it.
Is there a way to dump the guts/programming of your stock PCM to see if the maps are messed up? What you describe to me are symptoms of timing; not enough advance at specific RPM ranges.
If you were in my neck of the woods, I'd have you drive my truck; you'd then see that the "baby brother of the 5.4 has plenty of guts, and therefore your 5.4 should be driving circles around it.
The following users liked this post:
Tommy J (12-14-2015)
The following users liked this post:
Tommy J (12-14-2015)
#6
His statement "These trucks are dogs" makes no sense to me. I have a 2007 with the 4.6; it has 130K on its odometer, and it runs fantastic, with plenty of "giddy-up" when I'm on it. All of the 5.4 owners boast on how poky the 4.6's are, yet when I come across a post such as yours, I'm puzzled.
Is there a way to dump the guts/programming of your stock PCM to see if the maps are messed up? What you describe to me are symptoms of timing; not enough advance at specific RPM ranges.
If you were in my neck of the woods, I'd have you drive my truck; you'd then see that the "baby brother of the 5.4 has plenty of guts, and therefore your 5.4 should be driving circles around it.
Is there a way to dump the guts/programming of your stock PCM to see if the maps are messed up? What you describe to me are symptoms of timing; not enough advance at specific RPM ranges.
If you were in my neck of the woods, I'd have you drive my truck; you'd then see that the "baby brother of the 5.4 has plenty of guts, and therefore your 5.4 should be driving circles around it.
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#8
What can I say........ I like my truck and its got a few issues that Im trying to iron out before I die. I believe my truck is not performing to its full potential possibly. Im too boring to do all of the stuff to my truck that you guys do. I just want it to crank "normal" when warm and stop my 2000 rpm hiccup. I've already dropped thousands. None the less, thanks for the response
#9
I always thought my old 4.6 was a little slow for me when I had it until I got my 5.4. You could definitely tell the extra power was there in the 5.4. However I didn't think the 4.6 was terrible.