Join Date: Apr 2014
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Random Acceleration and Stalling
Truck Info: 2004 CCSB Arp Head Studs, coolant filter, fresh oil cooler, ELC coolant,blue spring, EGR Delete, stc Livewire with Matts @gearheads SRL+
Driving at a low engine speed per say a light cruise with very partial throttle the truck suddenly, jerks forward and begins to accelerate without my foot being pressed down. i back off and the truck will loose some power then give it some gas and it will suddenly surge back. Very randomly at a stop light will it start bouncing around the idle. Finally today it died out on me at a light started rigth back up. Sometimes on Start ups she fires right up, kinda like dies and and picks right back and smooths out. She is not misfiring, she runs smoothlyyy when shes not acting up, if i go disabling injector by injector there is a noticeable misfire.
Things ive done:
Icp is reading steady and not dancing around, and IPR seems to be steady, the issue has been happenign more periodically now, to the point that it does it every time you drive it.
Ideas that I have: Maybe some stuff has accumulated in the IPR valve from when i did the Oil Cooler about 5k ago, and its not letting it operate as it should..
Maybe my ICP is bad although i dont have Codes and it reads what seems to me as proper operating pressures
or maybe im having a low fuel pressure issue and it straightens out when it increases in pressure.
I am going to Check for Fuel pressure on monday if i can hopefully find a fitting to thread in there,(any tips on that?)
and I am going to remove the IPR to see if the screen has blown and its functioning as it should..
Anyone have any other ideas ? Or other suggestions on places to check ?
I have noticed that the truck is acting up more with the tune than without the tune, which would make sense since the tune requires more fuel.
Any input is appreciated thank you