randy merritt
Donating Member
Re: progressive stumble?
may be the rubber fuel line in the tank going from the filter to the pump.
may be the rubber fuel line in the tank going from the filter to the pump.
progressive stumble?
- Thread starter Neelsonwheels
- Start date
Neelsonwheels
Donating Member
Re: progressive stumble?
Randy,
That was what I was kinda thinking. I'm going to drive it some more and do some data logging just to see what is up. If the miss or sputter comes back as the fuel level drops I
would guess the line from the filter to the first pump has a split or something in it.
Randy,
That was what I was kinda thinking. I'm going to drive it some more and do some data logging just to see what is up. If the miss or sputter comes back as the fuel level drops I
would guess the line from the filter to the first pump has a split or something in it.
berzerker
wookie
Re: progressive stumble?
if you have a aftermarket ignition system like a 6al ? do you have the proper positive and ground feed sources directly to the battery ? If not i believe this is your isssue . Dan C . a long time owner and member had this same issue for a long time and it was because his msd 6al box wasn't powered right .
if you have a aftermarket ignition system like a 6al ? do you have the proper positive and ground feed sources directly to the battery ? If not i believe this is your isssue . Dan C . a long time owner and member had this same issue for a long time and it was because his msd 6al box wasn't powered right .
Neelsonwheels
Donating Member
Re: progressive stumble?
I do have a 6Al and I believe it is wired correctly. The truck had been running fine with it for a good while. Thanks for the input.
I do have a 6Al and I believe it is wired correctly. The truck had been running fine with it for a good while. Thanks for the input.
SpoolingTurbo6
Donating Member
Re: progressive stumble?
Does it happen right around 2300-2600 RPM ?
Does it happen right around 2300-2600 RPM ?
Neelsonwheels
Donating Member
Re: progressive stumble?
I will make a mental note to pay attention to the RPMs next time I take it out.
Most likely tomorrow. I'll keep you posted. Thanks
I will make a mental note to pay attention to the RPMs next time I take it out.
Most likely tomorrow. I'll keep you posted. Thanks
Neelsonwheels
Donating Member
Re: progressive stumble?
My truck has Bigstuff 3. I looked last night at the current tune and what I found was 25 for the IAC count. The truck goes closed loop after 100 degree coolant temp and 1200 RPMs.
I am no tuner!! let's be clear about that. LOL I just look around at the info.
My truck has Bigstuff 3. I looked last night at the current tune and what I found was 25 for the IAC count. The truck goes closed loop after 100 degree coolant temp and 1200 RPMs.
I am no tuner!! let's be clear about that. LOL I just look around at the info.
Neelsonwheels
Donating Member
Re: progressive stumble?
TPS checks out. Went for a twenty minute(18 mile) drive last night
And the truck ran flawlessly. Shut it down and had dinner and talked with
Friends for a while(all about two hours) jumped in to drive home and
The stumble miss is back!!!! Geeze!! Can't figure this out. I was thinking
Fuel pump or line now I am so confused. Now I guess a loose wire?
I don't friggen know!!
TPS checks out. Went for a twenty minute(18 mile) drive last night
And the truck ran flawlessly. Shut it down and had dinner and talked with
Friends for a while(all about two hours) jumped in to drive home and
The stumble miss is back!!!! Geeze!! Can't figure this out. I was thinking
Fuel pump or line now I am so confused. Now I guess a loose wire?
I don't friggen know!!
Neelsonwheels
Donating Member
Re: progressive stumble? Possible fix?
Re: progressive stumble? Possible fix?
Someone mentioned gas cap maybe bad so before I went out yesterday to grab some Mothers Day items for the wife I figured I would just for giggles remove the gas cap and then put it back on. I will need to drive it next time without cracking the cap to see if I get a different result but once again the truck ran mint. Just like it did after the fuel fill. Could it be
that I am getting some kind of vapor lock that causes a stumble? I will keep trying this method just to be sure this is the issue.
Re: progressive stumble? Possible fix?
Someone mentioned gas cap maybe bad so before I went out yesterday to grab some Mothers Day items for the wife I figured I would just for giggles remove the gas cap and then put it back on. I will need to drive it next time without cracking the cap to see if I get a different result but once again the truck ran mint. Just like it did after the fuel fill. Could it be
that I am getting some kind of vapor lock that causes a stumble? I will keep trying this method just to be sure this is the issue.
Neelsonwheels
Donating Member
Re: progressive stumble?
Sure! If you can get it from Renz !!
Sure! If you can get it from Renz !!