Idle Help '96 ATX D250
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From: Mpls
Idle Help '96 ATX D250
Originally Posted by redramnc
If it dies when cold I would bet that the idle is set too low. Simple thing to set if you can contort your hands under the back of the injection pump with a 10mm wrench.
As for codes, the motor is pretty much self-contained - about the only thing that sends signals to the black box is the crank sensor for RPMs and the TPS for throttle position. Being a 12-valve the pump is all mechanical so there is no electronic control or feedback required.
You can have the codes pulled but don't expect a whole lot of information from them.
As for codes, the motor is pretty much self-contained - about the only thing that sends signals to the black box is the crank sensor for RPMs and the TPS for throttle position. Being a 12-valve the pump is all mechanical so there is no electronic control or feedback required.
You can have the codes pulled but don't expect a whole lot of information from them.
I WAS able to use the ODB logger. It's idling at ~730.
I found the 10mm jam nut, and adjusted up the idle.
Problem: as soon as the stud turned, the idle went to ~900.
I backed it off a hair and it went back to 730, ad infinitum.
Question is; did the end of the stud get a groove worn in it from whatever buts against it?
IOW, instead of raising the idle incrementally, it jumps up on the ramp.
Then the wear made the idle go down over the years.
Second question: Was I turning the correct adjustment?
I can't see a thing under there. Any place there's pictures?
Thanks in advance!
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From: SunnyVale Trailer Park
http://www.dodgeram.org/tech/dsl/adj...d_Gen-Idle.htm
There's your picture.
From what i hear the screw can get a groove worn into it from the throttle lever hitting it, you can get a new bolt from cummins.
Edit: I have found the easiest way to get ahold of that idle screw is to lay ontop of the engine (parallel to the engine) and look down through the wiring harness/fuel lines etc , and you can see the screw, use your right hand to reach down in and loosen the lock nut , then adjust the idle.
There's your picture.
From what i hear the screw can get a groove worn into it from the throttle lever hitting it, you can get a new bolt from cummins.
Edit: I have found the easiest way to get ahold of that idle screw is to lay ontop of the engine (parallel to the engine) and look down through the wiring harness/fuel lines etc , and you can see the screw, use your right hand to reach down in and loosen the lock nut , then adjust the idle.
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From: Mpls
Excellent! Couldn't have asked for more.
Thanks!
Thanks!
Originally Posted by JKM
http://www.dodgeram.org/tech/dsl/adj...d_Gen-Idle.htm
There's your picture.
From what i hear the screw can get a groove worn into it from the throttle lever hitting it, you can get a new bolt from cummins.
Edit: I have found the easiest way to get ahold of that idle screw is to lay ontop of the engine (parallel to the engine) and look down through the wiring harness/fuel lines etc , and you can see the screw, use your right hand to reach down in and loosen the lock nut , then adjust the idle.
There's your picture.
From what i hear the screw can get a groove worn into it from the throttle lever hitting it, you can get a new bolt from cummins.
Edit: I have found the easiest way to get ahold of that idle screw is to lay ontop of the engine (parallel to the engine) and look down through the wiring harness/fuel lines etc , and you can see the screw, use your right hand to reach down in and loosen the lock nut , then adjust the idle.
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Joined: Mar 2003
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From: New Holland, PA
I just set idle on one yesterday after putting in a GSK. I found that if I stuck my right arm under the master cylinder (while standing in the normal position one would while working on the side of the engine) I was able to reach everything very well. After I backed off the locknut I was able to spin the idle screw with my fingers. The key is going down between the master cylinder and the frame rail.
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