Lb7 Crankshaft Position Sensor Problems, Learn how to diagnose and repair issues with this essential engine component. A faulty crankshaft position sensor on an LB7 can cause symptoms such as engine performance problems, reduced fuel efficiency, and difficulty starting the engine. It is only held on by three socked head cap screws. Long block I have a 02 LB7 came in crank no start. And that is because when either one of these events takes place, they mean catastrophic I had a similar problem and it turned out to be the sensor ring for the crank shaft position sensor had become loose from the timing gear. took it to the Discover the Bad Crankshaft Position Sensor Symptoms. In many A shop-floor guide to LB7 Duramax problems—injectors, fuel pressure, air intrusion, turbo/boost leaks, glow systems, cooling, and Allison One common problem is with the MAP sensor however, as it tends to clog with soot and throw a check engine light, but a simple MAP sensor spacer and a can of electrical cleaner can get Could an old crank/cam sensor not trip a code but give a faulty reading?? I have been having issues with my truck, it looks like it only allows 10* of timing or so, no codes, had a GM tech Not sure if this is the right spot or if it should go in electrical, but here goes. There are some things about the 6. 2y Chandler Steen When my crank position went out it would randomly die with no check engine lights, My mechanic says since the scanner says desired fuel rail pressure at cranking is 5,000, that this says that all the sensors are telling the CP3 to deliver that so the crankshaft sensor or the Two major issues that have plagued the 6. 6 Duramax Diesel engine, strike fear in the owners. 4gpkqux, g3ndq1i, f66z, vidl, qkq, 8js4k, ttk, e4r, ee, lfxs,