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Discussion Starter #1
Why can I only get 2500rpms on of my truck. I can hold it flat to the floor I can feel like it hits a wall like it loses fuel on something truck has auto trans. Throttle hits the stop on the injection pump. I also have 4k Gov springs. It will free rev just find to 3000rpm.
 

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fuel pressure please?

Read the fuel sticky in these forums for troubleshooting.
 

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Discussion Starter #3
Idk what it is I need a guage. I did upgrade the spring in the lift pump and have a adjustable over flow valve. Have all new fuel lines.
 

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Did this just start happening, or is it an ongoing issue? When was the 4K GSK installed? Would it rev above 2500 then? Or is it that your automatic transmission shifts to the next gear at 2500? More detailed info please!
 

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This is why I have stayed off this site for the last 6 years. How do you have almost 1400 posts and been a member on here for almost 10 years and proceed to ask a question worded this poorly?

This is right up the line with "why won't my truck start?"

When did you add your GSK?

Did you correctly install your GSK with the right stud clearance? Probably not..

What is your fuel pressure?

Have you changed your fuel filter?
 

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Idk what it is I need a guage. I did upgrade the spring in the lift pump and have a adjustable over flow valve. Have all new fuel lines.
It doesn't matter if it is new or has 600,000 miles on it. To understand a problem requires collecting data about the problem. Get a gauge and we'll start there.

Sent from my LG-H932 using Tapatalk
 

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Discussion Starter #7
No it's not the Gov springs I been fighting this issue for a while. It will free rev to 3000rpm for a while. I am not a new be on here or to 12v. Y do guys act so rude to someone if u dont have anything nice to say than dont say anything at all. Never mind than I will figure it out myself thanks for the guys that did help. Someone just delete this post please
 

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Nobody here is acting rude. The question did not contain the information to indicate you've done any diagnostic. Without any information we resort to nothing but guess work. That is frustrating to some.
Anyways, people here want to help... you just can't be vague in your queries.
 

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Discussion Starter #9
That's fine I dont need ur help thanks anyways
 

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Wow!!?? I can even say it backwards: ??!!woW
So sad that people these days ask for help and then become offended if you ask questions to get more info. I own a hardware store, and more and more often these days, people seem to feel that you are attacking them if you ask for more info...…
David
 

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Discussion Starter #11
I am not offended by anyone. I just dont need the drama from anyone I am getting to old for that stuff. I look at it this way if he was tried of beening on here than y post for? I ask for help not why hes piss off at other people. Yeah maybe I didnt give enough info at first but give me some time.
 

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This is why I have stayed off this site for the last 6 years.
I took a look at your last post from 2014. So tell me, do you still believe this?

. Your boost lines going to your boost gauge have like a 3-4mm inside diameter (I'm just throwing that number out there) however, psi=pressure per squar INCH not PER MILIMETER. When a 1 Inch line will lift 40lbs of weight when charged to 40psi, your 4mm boost gauge will lift, well lets see. 25.4mm per 1 inch. So math: 4÷25.4 will give us what percent difference it is between a 1 inch hose and a boost line. So 4÷25.4=0.1574 or 15.74%. So your boost gauge is 84% (100%-15.74%) smaller than what PSI reading are suppose to be measured in (a 1inch hose).
 

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I took a look at your last post from 2014. So tell me, do you still believe this?
Damn GAmes, you're like a crazy ex, always able to bring up the dumb things done years ago. As a engineer, the quote you brought up is cringe worthy though.
 

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Damn GAmes, you're like a crazy ex, always able to bring up the dumb things done years ago. As a engineer, the quote you brought up is cringe worthy though.
I was curious at what kind of drama had happened. Instead all I found was someone being ignored. I couldn't ignore it.
 
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Discussion Starter #16
So I got a fuel pressure guage I will get it hook up give u guys the reading. It just the oddest thing. U can hold the truck at 2500rpm under a load truck pulls strong. As soon as I try to go past 2500rpm I can fell the truck lose power and I can watch the rpms fall off. It's either the fuel pressure or Gov springs need to be tighter I never had a issues with installing Gov springs have installed many sets. I do them all the same was my the clicks I never measure them.
 

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What happens when you manually put the transmission in first? Are you still limited to 2500?
 

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Discussion Starter #18
Not sure I will try that out today.
 

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Discussion Starter #19
Ok so I manually shifted my trans it will rev to 3000rpms with no issues. So my TV cable is acting like a throttle stop?
 

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Discussion Starter #20
Got fuel pressure guage installed I have 24psi at idle it was only 19psi I max out my overflow valve. I think the fuel pressure seems low to me I have a bottom sump in the fuel tank all new fuel lines also I have remove the fuel heater and prescreen and put a heavier spring in the lift pump.
 
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