Engine/Transmission (1994 - 1998) Brother just bought a '94 CTD Need a Quick Run Threw Guys

[DieselMinded]

1200RPM fltter is what it has I heard govener srings will fix it?? but I guess its normal for these trucks.



PM me if you want to get rid of that fuel plate



Joe,



Thats kind of what I was thinkin it may restrict the fuel other than help.



Will reconcider putting it on.



OVER HEAD CONSOLE (AKA TEMP THINGY) the compass works but on the other side it says 0C I tried holding in both bottons to reset it like my truck is and it dont do anything . . is it normal for these to crap out??



TRUCK HAS BEEN RODE HARD



I cannot find a bolt on it that doesnt have wrench marks on it.



DM



BTW the TC inspection plate is missing !!!!!!! one little rock and ... ... ... ... ... it will get ugly.



I think about 100 ford guys got ahold of this truck in a dark alley or something



DM



Did I mention JB weld is how the case was repaired after the KDP went killer



Laugh if you want ... .....

 

[DieselMinded]

you say 40+ PSI of fuel Is it pulling 40 pounds of fuel from the tank or just after the LP possible smaller lines from the LP to the IP ???



40 PSI is aot to be pulling strait from the tank.



DM

 

[Joe G.]

I am measuring pressure at the banjo fitting where it goes into the injection pump. Good pressure right there is a good indication that things all alright between the injection pump and the tank. I had a fuel heater develope a leak. The first indication I had was lower than normal fuel pressure. That was before I had any sign of poor performance or anything like that.



Just going by your description, I would replace both fuel hoses. Replace the fuel filter. Check the fuel drain valve on the bottom of the fuel filter. Check the input fitting into the fuel filter. Check out the fitting that goes into the top of the fuel heater/pre filter assembly. Remove the fuel heater from that assembly and leave it on the work bench. Clean the fuel heater screen. Replace the short hose between the pre-filter and the lift pump. If it still runs ratty and has good fuel pressure, I would take it to a pump shop and get the injection pump checked out and calibrated. Then if it still ran ratty with good fuel pressure I would check out the injectors. There is nothing else in the fuel system.



Basically, you need to attack this problem(s?) in a systematic way. You may very well have more than one thing wrong. In fact from the description of it I would be surprised if only one thing was wrong with the fuel system.

 

[Twisted Shifter]

:-laf I have been watching this for some time ... I know what its like ... . I just bought a 94 to BOMB and I am having nothing but problems ... I hope they all go away soon... ... . I am in the middle of pulling off the head, turbo, inj, and pumb to replace. Going to put Twins on it and have the IP machiened into a race pump. If you need any stock parts let me know and if I can helpI will send it to you.

 

[DieselMinded]

we need all kinds of parts



BIGGIE ... AIR INTAKE HORN



Let me know everything you have !



YAHOOOOOOOOO !



This is great



BTW. No pusher I kind of agree with you guys.



NEED LOTS OF PARTS



DM

 

[Twisted Shifter]

Are you going to keep the stock intake or put a cold air setup on it? I think you said the stok box was broken?



If I replace my stock horn its all yours.

 

[DieselMinded]

Awesome. .



I Used my stock air box off my 02 .



We need the horn You better upgrade yours... . LOL



PUSHER IS GOING IN.



It is Vacuum drawn from the tank ! presure is gained between the LP and the IP !



Lets help it along a bit



Not to go against anyone I really Apriseate the help ,But A friend had the flutter and he put a pusher between the tank and the LP and it went away ... We will give it a shot I will let you guys know either way.



Now if you put the pusher between the LP and the IP then It would BOTTLE NECK.



To My Understanding



Theres only one way to be sure



BOMB's Away



Twisted Shifter,



We have a 21MM Ext housing and a D2 tool steal Tab for the KDP if you would like it We can exchange some parts.



Need lots of stuff .....



Another being the front inspection plate Off the TC



And on... . And... on



Did I mention when they put the JB welded Case back on instead of using a Aproved gasket they used ... ... ... ... ... ... ... ... ...



Form A Gasket









WHY ???



And YEs it keeps getting better



:-laf



DM

 

[Twisted Shifter]

I have the Tab to do the KDP and I think I am going to do a PDR cam while I have the front cover off and I have a set of PDR Twins on order.



any thing I get you have first rights to it

 

[DavidTD]

The only thing I will add here is the plate missing did not hurt your pump.



Sounds like a fun project. Good Luck.

 

[DieselMinded]

Pushers in ... ... ...



Didnt do Anything



Going to put in A fuel plate and swap the 300 injectors for stockers and see if it stops the flutter.



Seems possibly the IP cannot pump adiquite fuel to keep the injectors fueled like there suppose to be ... . untill the RPM are up and the Pump is Crankin'



Next Steps:



Fuel Plate Playin'

Swapping 300 Jectors' for Stockers



Still have a 21MM ext Housing Avalible



DM

 

[Joe G.]

DM,



I ain't the lift pump. Mine keeps 370 injectors well supplied with fuel. I really think you need to take the injection pump to a shop and get it checked out.

 

[DieselMinded]

Trying to



BUDGIT BOMB



Here



And keep it out of shops



So far all the parts that we have changed we used - used parts



$100 to get it timed and all worst comes to worst thats what we will have to do.



Interesting that your running Bigger Injectors then we are and your dont have a flutter... ... . HUMMM



And if its not Fuel Delivery then it would have to be the Injector Pump



Problem there is I have gotten alot of feedback saying when you put Bigger Injectors in the '94 it creates that flutter at that RPM. dont make sence that your is fine with it ... unless you have upgraded your Injector Pump ?????????



If the stocker dont fix it were throwing the 300's back in and we will go get the pump Checked out :<



Then if its bad... ... ... ... ... ... ... ... .



Hay Twisted Shifter Your upgrading to a Bombed P7100 What are you going to do with the stocker ??





LOL



DM

 

[Joe G.]

I bought my 370s from PDR. I had read about the flutter so was looking for it. It is so slight that if I'm not paying attention I don't notice it. It only occurs at very light throttle. There is a very slight tremble from about 1400 to 1700. If it's ever gets worse I will replace my stock DVs with larger ones. My pump is stock except for the #5 TST plate and some small adjustments. Two clicks on the governor springs and the high idle screw has been turned in all the way and backed off one turn. It will turn 3000 RPM if I want to run it that fast. One test to see if it would do that was enough for me. I seldom get it above 2700 RPM in normal driving or towing. It pulls strong at that RPM and above.



The biggest problem with your pump is that you really don't know what you have. You do know that it was abused. The pump might not be the one that came with the truck.

 

[Twisted Shifter]

FYI ... . I am listing the parts that I am taking off in the Pay it Forward area.



Twisted.

 

[DieselMinded]

When ??? As You G0 ???



I guess I will have to start checking the Pay It Foward Forums Every Day.



LOL



DM

 

[Twisted Shifter]

Yea as I determine that something wont be going back on... I am listing it.

 

[Willys]

DieselMinded, did you ever get this flutter to disappear?



Andy

 

[SDrake]

FWIW my 94 had a flutter around 1200-1300 RPM that was very annoying from the day I bought the truck. It was only a problem when driving around 42-45 mph and the torque converter would lock up and the truck would buck and jump so bad you would have to either let off the throttle or floor it to down shift. On TDR I learned that the PIM for that year had been modified to a higher RPM lockup. I now realize they were just working around a problem of the inherrent instability of the govenor at these RPMs. Almost anything you change might set it to twitching and the twitch is pretty much in sync with the engine revolutions causing it to seem like a miss. I always felt like I had just gotten a truck with a weak cylinder or something. It would lope even when reved to 1200 RPM with out a load. I gave up early having the dealer do anything. The none mechanically inclined mechanics were blaming it on all sorts of things and when you listened to them tell you about their theory you knew they didn't know what they thought they knew. And you also knew to get your truck out of there as fast as you can.



Fuel pressure pulsations, the dynamics of the delivery valves and the injectors, the govenor spring adjustment, etc will all affect how the govenor at the unstable speed we are talking about. The particular speed will vary somewhat with each truck because it is influenced by a combination of things.

On good running trucks the unstable speed is simply lower than you run the truck so you never notice the instability. Who cares or not if the unstable speed is 400 RPM.



Long story short as I began to realize that I did not have a weak cylinder or injector or delivery valve and as I began to understand how the govenor worked I realized all I had to do was change something and the "govenor bounce" would change for the worse or the better. I installed a new lift pump when it failed and along with it the overflow valve and it started behaving differently and was worse. I took to turning in the govenor springs a click or two just to analyze the situation and immediately saw that that would eliminate or change the RPM at which it occurred. I then went ahead and installed the 3K springs from PDR and set the spring adjustment on the lightest setting that would catch a notch on the detent and reajusted the idle speed. The setting is going to vary from truck to truck and spring to spring. The truck now pullls smooth from the bottom all the way up. Scary almost. It is easy to lug it down too slow because it pulls so smooth.



Dodge and Cummins are not going to tell you that the govenor is inherrently unstable at these RPMS because is is very hit or miss when ever you start fiddling with the parameters that affect the twitch. It might take a lot of time. But the twitch can be defeated. Or it can be resurrected by putting in bigger injectors, just different injectors, smaller injectors, different stiffiness fuel hose, fuel pump getting weaker or stronger.

 

[DieselMinded]

Never could get the flutter out ... . ditched the 370's and went with stock injectors and its fine now I think that the AFC being gutted may have effected pressures and made it flutter ??? I dont Know ? we also did govener springs and that cleared it the rest of the way up



DM