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Check Engine Light On, P0300 Random Misfire Code. A random misfire means your engine is misfiring, but that the problem is not isolated to one or two cylinders. It is jumping around in a random way from one cylinder to another. A random misfire code usually means the air/fuel mixture is running lean. Replace plugs wires and coil packs.Check crank /camshaft position sensors, check MAFS
fix the anti freeze leak --before you blow a head gasket
what your codes mean
Check Engine Light On, P0300 Random Misfire Code. A random misfire means your engine is misfiring, but that the problem is not isolated to one or two cylinders. It is jumping around in a random way from one cylinder to another. A random misfire code usually means the air/fuel mixture is running lean.
What the P0700 code means. P0700 is set when the PCM detects a malfunction in the transmission control system. This malfunction causes the vehicle to set a Check Engine Light and trigger a failsafe mode. Once the failsafe mode is set it will remain until the fault is repaired or normal operation is detected.
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https://www.youtube.com/watch?v=OyvdWeyDHf4
Feb 5, 2010 - Uploaded by Scotty Kilmer
Scotty Kilmer, mechanic for the last 46 years and counting, shows how to fix your car if the check engine light ...
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the ...
www.automotiveforums.com > ... > Toyota > SequoiaTraction Control System Problems Sequoia Car Forums. ... The VSC/ATRAC indicator lights are staying on and the system will inadvertantly ..... giving a bad reading following the replacement of the steering angle sensor with a new one.
indicates a low fuel pressure problem
random misfires are predominately fuel pressure related rather the electronic
check pump operation , pressure regulator, filter , and EVAP for not venting the fuel tanl
saturn had a lot of problems with the coil posts getting rusty that will cause the misfire on cylinder number 3 and any skip will cause the random misfire see as one coil fire two cylinders the egr sensor is built into the vavle and try stick closed from carbon build up cleaning it will only putoff replacing it if it operates at all
what type/size of engine? what year model truck? several things to check for a random misfire. also , how many miles on the truck? coils are a possibility but they usually set specific cylinder misfires if it is equipped with coil on plug ignition system. a vacuum leak or low fuel pressure can cause a random misfire. also broken valve spring can cause the misfire because it effects the engine vacuum.
You need to have the ecm scanned for codes. The VSC and TRAC OFF lights are one just because the Check engine light is on. Once you clear the code in the ecm they will go off too.
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