Mudman74

9 hours ago, theakerstwo said:

make sure the stop lever is going back to run postion all the way.If so then it may be a rack sticking and if so pump needs to go in.Water in fuel will stick a rack fast.It may be a 96 year built and just a 97 title.

I should have mentioned I checked the stop lever. 
We also have a 98 that is full mechanical and a 99 that was also. According to the dealer was original. 

I would need a little more info on the engine. Is it an IEGR engine? We have 4 of them. The power band is higher. They really don’t build power until 1300-1400 rpm. Not a bad engine. Did have oil leaks from the exhaust manifold bolts for a while. Also the Oil pressure sensor On the filter housings leaked on them. All of ours are over 25000 hours. 

1 hour ago, 67RModel said:

What do you mean by not wanting to idle? Like starving itself for fuel to a stall, or running at higher than normal rpm at "idle"? If it truly is an all mechanical injection pump it may be the linkage. It could be out of adjustment or getting jammed up somewhere. You could disconnect the throttle linkage from the injection pump and manually open the fuel rack all the way by hand and have somebody watch your tachometer to see if it is still stopping at 1600. Just a thought.

The truck wouldn’t idle. I adjusted the stop so it would at least idle (500 rpm) which is still too low. The linkage is fine. I did unhook it. It still tops out at 1600. 

1 hour ago, fjh said:

Seems a little to new to have a manual fuel pump?

No sir. She is full mechanical. 

I have a 1997 E7 all of a sudden it will not idle and I can not rev it up past 1600 rpm full throttle. 
Fuel filters are new. I do t believe I have a line restriction. It has 22-24 psi of fuel pressure wide open. The air system doesn’t seem to have a restriction. Air cleaner is new and vacuum gauge says 0. I pulled the line of the intake to the injector pump and it will hold a vacuum. 
Any other ideas before I pull the injector pump and send it in?

Correct me if I am wrong. Isn't the "imt" sensor is on the cegr engine. Either way aren't they located in the same place on the intake manifold under intake ducting?

We have 4 of them in our fleet. Notorious for oil leaks from lower exhaust manifold bolts and where the oil filter manifold mounts to the block. As mentioned earlier update the software. If you have an iegr engine and have to fix leaky exhaust manifold bolts, replace the exhaust manifold with older version (less restriction). Also had wiring harness issues. All in all the are decent trucks.

Do you have fuel at the injectors? Crack an injector line open, crank the engine, and see if you have fuel that far. 

In a pinch I have just put a peice of hose on with clamps to get the truck home. Then I fix it correctly at the shop. Ultimately there should only coolant pressure there (no more than 15 lbs.) unless there is an issue with your engine. 

I have a 05 e-7 iegr engine with a 2-3 blink code. FMI 5. I need some help. I have replaced the IAT sensor. The wiring harness is new about 10 months ago. I followed the diagnostic tree for the code and it went away for a couple of days. Now it intermittently comes back on and goes back off. When the lightning bolt comes on the engine fan stays engaged. The plugs look good at the sensor and the ecm. So do the pins. What am I missing?

On 6/22/2017 at 1:02 PM, Mack Technician said:

AI restrictor left                                                                                                E7-Etech right

Mounting height/depth/angle/position of turbo is perfectly matched, no adjustments needed.

can someone explain the term AI to us village idiots please?

On 6/22/2017 at 7:48 AM, Mack Technician said:

NELM! The only Greeney was the "green-horn" who didn't realize delete means everything!

Mine was 2002 CH613. My old cohorts at the Truck Center said they grabbed manifolds all the way back to PLN..... Just watch out for CL chassis with E7 manifold which tilts upward.

Is there a specific part number for this manifold?