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P0300 Diagnostic Trouble Code Discussion for April 2017

Multiple Misfire Detected *

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Trouble Ticket Help Requests for DTC P0300

	Help Request	Posted
	2001 Chevrolet Tahoe 5.3L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1GNEK13T51 P0300: Multiple Cylinder Misfire Detected. This one is fun! I've looked thru the archives already and 95% of the fixes are fuel pumps, the rest are a mix of regulators and filters. I've changed three pumps in the last three days! Had changed one regulator three months ago, just changed it again after t...	April 03, 2017
	2013 Ford Police Interceptor Utility 3.7L Misfire, MIL Lamp on VIN: 1FM5K8AR0D P0300: Random cylinder misfire. We recently replaced the engine in this explorer due to the fact they ran it too low on oil for too long. Vehicle now has misfire under heavy acceleration - upwards of 6-6500 rpms. MIL light flashes and engine goes into reduced power mode until off throttle fo...	April 10, 2017
	2011 Ram 1500 SLT 5.7L No Start VIN: 3D7JV1ET7B P0300: misfire. We had this truck towed in for a stall, no start condition. It died going down the highway. The fuel tank was filled and it did not run after that. Fuel pressure is 50-60 psi and volume is good.It will crank and try to start then just crank. Spark plugs are al...	April 10, 2017
	2003 Hummer H2 6.0L Misfire VIN: 5GRGN23U23 P0300: Multiple Cylinder Misfire Detected. ... 03 H2 Hummer that sets A P0300 misfire code within a minute of startup. Shop that has it has replaced with GM parts, all of the injectors, coil packs, spark plugs and catalytic converters trying to solve this problem. They also did cranking and running com...	April 11, 2017
	2011 Ram 1500 SLT 5.7L No Start VIN: 3D7JV1ET7B P0300: misfire. We had this truck towed in for a stall, no start condition. It died going down the highway. The fuel tank was filled and it did not run after that. Fuel pressure is 50-60 psi and volume is good.It will crank and try to start then just crank. Spark plugs are al...	April 11, 2017
	2005 Chevrolet Tahoe LS 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GNEK13TX5 P0300: Multiple Cylinder Misfire Detected. Swapped coils, plugs, fuel injectors, wires for cylinders 5 and 7 and misfire stays. Have done all the tests stated in testing and results. Running horrible at idle and while driving. Scan tool data Cylinder 5 and 7 continuously counting misfires.	April 12, 2017
	2006 Chevrolet Silverado 1500 HD LT 6.0L MIL Lamp on VIN: 1GCGK13U56 P0300: Multiple Cylinder Misfire Detected. Vehicle came in with a misfire on Cylinder #7. Found a bad spark plug and ignition coil. R & R the parts. Truck runs great. Road tested the truck and upon accel CEL started flashing but no misfire felt. Scanner shows Cyl 7 as a dead misfire. Yet the truck ...	April 12, 2017
	2003 Nissan Frontier SE 3.3L Misfire VIN: 1N6ED29XX3 P0300: Multiple Misfire Detected. Previously we have cleaned spark plug cyl2 , replaced cyl 2 injector, ran bg induction clean through the engine. We checked cylinder head gasket with block tester( liquid sniff test)-ok compression good at 120 psi, spark weak. Replaced with new distributor ass...	April 17, 2017
	1998 Nissan Pathfinder LE 3.3L Poor Idle Quality, Hesitation, Misfire VIN: JN8AR05Y9W P0300: Multiple Misfire Detected. ... on and a hesitation complaint. P0300 present. Bank 1 is very rich and Bank 2 is very lean. o2 sensors good, cat is clear, fuel pressure within specs. Pinching fuel return line improves idle, flushed fuel rail and no change in idle or misfire. I'm running o...	April 19, 2017
	2006 Chevrolet Silverado 1500 HD LT 6.0L MIL Lamp on VIN: 1GCGK13U56 P0300: Multiple Cylinder Misfire Detected. Vehicle came in with a misfire on Cylinder #7. Found a bad spark plug and ignition coil. R & R the parts. Truck runs great. Road tested the truck and upon accel CEL started flashing but no misfire felt. Scanner shows Cyl 7 as a dead misfire. Yet the truck ...	April 20, 2017
	2004 Chevrolet Venture LS 3.4L Poor Idle Quality, Cuts out, Stall VIN: 1GNDX03E54 P0300: Multiple Cylinder Misfire Detected. Got this car in as a know start. One of the other techs here did the diag. I was given work order and told too do the job. The was know codes written down nothing but need pump. So I installed pump try too start and it a crank know start. Then told too look in...	April 26, 2017
	2004 Chevrolet Venture LS 3.4L Hesitation, Cuts out, Stall, Misfire VIN: 1GNDX03E54 P0300: Multiple Cylinder Misfire Detected. I'm reopening this help request per I have pissed off a few college perfesers it seems. I apologize for my ignorance in my last help request. Some times it's hard to get everything perfect when your frustrated and the boss is turning the light out as your writ...	April 26, 2017
	1999 Isuzu Rodeo S 2.2L MIL Lamp on VIN: 4S2CK58D3X P0300: Multiple Cylinder Misfire Detected. I'm just curious if there is a correlation relearn procedure to do? I've done everything as related to try to figure out why this code keeps setting. Looking at misfire data current cylinders showing misfire counts are for #1 and #4. Have to fool scan tool tha...	April 27, 2017
	2004 Chevrolet Venture LS 3.4L Hesitation, Cuts out, Stall, Misfire VIN: 1GNDX03E54 P0300: Multiple Cylinder Misfire Detected. I'm reopening this help request per I have pissed off a few college perfesers it seems. I apologize for my ignorance in my last help request. Some times it's hard to get everything perfect when your frustrated and the boss is turning the light out as your writ...	April 28, 2017
	2006 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 5FNRL386X6 P0300: Random Misfire Detected. ... - usually sets P0300, p0302, p0304 and p0305. At some point - sometimes right after start up, sometimes much later - the MIL will start flashing, engine idle increases to about 1200 rpm, low/no power on acceleration, tr...	April 30, 2017