They help the fuel pump, fuel injection and computer systems from suffering a short circuit. Fuses are used to protect various electrical circuits, while supplying power to components. So, the injector fuse and relay are usually located in the relay box or power distribution center in the engine compartment. A fault in the wiring harness to the injectors.First, check for voltage at the injectors, when the key is turned on. So, if there are problems with how the (PCM) performs these functions, the vehicle may not run. The (PCM)’s functions include positioning the crankshaft and controlling the ignition spark and timing. In some cases, a (PCM) problem, will cause the vehicle, not to run at all. In extreme cases the (PCM) may have failed.
![extreme injector wont open extreme injector wont open](http://otvet.imgsmail.ru/download/204814648_92755b752f8cc74dd8767f88199c245c.png)
#Extreme injector wont open driver#
When you turn on the key, the injectors should receive battery voltage.Īlso, the (PCM) driver circuit provides the ground connection, to energize the injectors. So, a worn-out belt can prevent the Crankshaft-Camshaft Position Sensor from synchronizing causing the sensor to send the wrong signal. The (PCM) uses the trigger signal from the crankshaft position sensor and/or camshaft position sensor to pulse the injectors. Tried turning the brush part of the pin to a horizontal position but still no go.So, the most likely cause, is that the fuel injectors are probably not opening. From the pics I took before dis-assembly, the "brush" part of the pin should be in a vertical position when reinserted into the hole but it just doesn't want to go all the way in. I'm pretty sure the problem has to do with the position of the tiny paint-brush shaped pin at the rear of the assembly. Any tips or suggestions?Īlso, once everything is reassembled and back in position and the retaining ring is tightened down, I assume the lever assembly should move freely - correct? Tried turning the brush part of the pin to a horizontal position but still no go. Did any of you have any difficulty getting the assembly back in correctly? Got it all cleaned up nicely (moves very easily now) and reassembled (exactly as it looked in the pictures I took when I pulled it out) but no matter how hard I try I can't seem to get the assembly to fully re-seat back into the hole in the injection pump. Well - pulled the lever assembly and it was definitely gunked up to the point that it was very difficult to move as Dave described. We reassembled and adjusted the idle once it was running and everything worked great When removing the assembly the safety wire needs to be cut and the entire thing pulls straight out once the retaining ring is removed. When its reassembled it needs to move very freely with no noticable resistance when we took it off you almost needed a wrench and brace to move it. We used Naptha to break everything loose then allowed it to dry then coated everything with WD-40 to remove any trace of junk and naptha. Take pictures prior to disassembly because it needs to be reassebled exactly as it came apart. The t-bar looking thing in the pictures below needs to be completely disassemled and soaked to remove the trash and coorosion that keeps it from turning freely. The entire assembly needs to be pulled out and seperated and cleaned. Turns out it was the lever that runs into the injection pump behind the engine start cable assembly.
![extreme injector wont open extreme injector wont open](https://i.ytimg.com/vi/O6DVcLepV58/maxresdefault.jpg)
We killed the motor again and again it wouldnt start. After manually pulling the lever back to run and starting the engine again it went back into a runaway diesel situation. Turns out the engine stop lever was jammed in the kill-engine position. We tracked the problem to the injection pump after verifying the filters and fuel pump were good. Not wanting to blow the motor i pulled the stop engine cable.
#Extreme injector wont open full#
Once it caught it immediately went into full throttle. The first problem we had was the truck started great after sitting for a few months.
![extreme injector wont open extreme injector wont open](https://i.ytimg.com/vi/YvNu9_ikD_g/maxresdefault.jpg)
Im just adding pics because i didnt see any when i searched through here. Once we knew what it was it was about a 20 minute fix. Well this has been covered here before and thank you all who told us about this problem.