× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0300 Diagnostic Trouble Code Discussion for June 2017

Multiple Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2012 Honda Odyssey LX 3.5L Misfire, MIL Lamp on VIN: 5FNRL5H64C
P0300: random misfire. Customer was in 6 months ago p0303, plug was full of oily carbon build up, sent to dealer to have piston ring recall done, was fine till now. came in with misfire cylinder 1-3 misfires. R&R plugs they are clean, smoke test no leaks found. Road test vehicle...
June 06, 2017
2013 Chevrolet Caprice PPV 6.0L Misfire VIN: 6G1MK5U26D
P0300: Random misfire. ... help would be great.this is a police car and the officer states that when it happens its always on the way to a call and hes driving hard,and its above 80 when it starts.he states that it starts cutting out and check engine light flashes.i have never got i...
June 07, 2017
2007 Jeep Commander 4.7L Poor Idle Quality, Surge VIN: 1J8HG48P07
P0300: Multiple Misfire Detected. Hi All, Jeep sets p0300 code. Did smoke test. This jeep has misfire on 2, 6, 8, only in gear (not under load) w/ A/C on . Installed NGK plugs than replaced w/ OEM Champion. Replaced Coils on 2 & 6.. Saw O2 waveform, on bank 2, that was different than bank...
June 13, 2017
2005 Mazda 6 S 3.0L Misfire, MIL Lamp on VIN: 1YVHP89DX5
P0300: Random Misfire Detected. Towed car from interstate, customer said needed water pump and thermostat and would not pass emission test. When started engine ran very rough but no sign of head gasket failure. Replaced leaking radiator, no problem with water pump or thermostat. Found dead c...
June 13, 2017
2009 Honda Civic LX 1.8L Misfire VIN: 1HGFA16519
P0300: misfire detected. Have cylinder 4 and random misfire intermittently, more pronounced under load, no power. Will get other cylinders to code as well intermittently. Adjusted valves, installed new coils and spark plugs in all cylinders. Performed cylinder leak down test, all cyli...
June 14, 2017
2006 Toyota Sienna LE 3.3L Misfire VIN: 5TDZA23C36
P0300: Multiple Cylinder Misfire Detected. ... month ago with the misfire codes (P0300, P0302, P0304 and P0306) stored in the engine computer. Cleared the codes and test drove and did not verify the issue. Changed the spark plugs because they were due for maintenance. Cam...
June 15, 2017
2005 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNET16S35
P0300: Multiple Engine Misfire Detected. Hello all. This Trailblazer was trailered in with air intake plemum and hose removed, and as you can see this vehicle also has many codes. Customer complaint is a no start. I re-installed air plenum and hose, and hooked wires back up. I think everything is plu...
June 17, 2017
1996 Chrysler Town & Country 3.8L Cuts out, Misfire VIN: 1C4GP54L7T
P0300: Multiple Cylinder Misfire Detected. ... Customer came in with a p0300 random/ multiple misfire code. Customer wanted to just do plugs and wires, no real need to throw plugs and wires w/ all the CCD codes. The wires look fairly new and plugs look great. I have checked ...
June 19, 2017
2005 Chevrolet Suburban 1500 Z71 5.3L Misfire VIN: 3GNFK16Z35
P0300: Multiple Cylinder Misfire Detected. ... I have a real head scratcher here and need some opinions. This suburban belongs to one of my best customers and came to me with a check engine light on and a p0300. I checked the misfire index and cyl #7 was missing pretty bad but seems to go away at 1500 ...
June 20, 2017
2013 Cadillac XTS Livery 3.6L No Start, Misfire, MIL Lamp on VIN: 2G61W5S3XD
P0300: miss fire random. After filling with gas crank time is very long and misses on start up. It only happens after being fueled.. no smell of gas and starts normally other than after being fueled.it is only filled til the fuel pump kicks it off not being forced past that point(not ...
June 22, 2017
2005 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNET16S35
P0300: Multiple Engine Misfire Detected. Hello all. This Trailblazer was trailered in with air intake plemum and hose removed, and as you can see this vehicle also has many codes. Customer complaint is a no start. I re-installed air plenum and hose, and hooked wires back up. I think everything is plu...
June 24, 2017
2005 Hyundai Accent GLS 1.6L MIL Lamp on VIN: KMHCG35C35
P0300: Multiple Misfire Detected. ... p0300 p0302 p0303 p0304 and his hard to starts but only one time every 2 months the car is well maintened by us new plug new eom wire .my question is is it possible that the crank sensor gave a bad signal sometime, or is it...
June 26, 2017