The P0301 code means that the cylinder 1 is misfiring or is randomly misfiring Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 1 If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes"I have a 03 Jeep Grand Cherokee Laredo Inline 40 6Cylinder I keep getting the following codes P0300 Random/Multiple Cylinder Misfire Detected P0302 Cylinder 2 Misfire Detected P0303 Cylinder 3 Misfire Detected P0304 Cylinder 4 Misfire Detected P0305 Cylinder 5 Misfire Detected P0306 Cylinder 6 Misfire Detected Asked by Lennie08 in Clackamas, OR on A P0300 diagnostic code indicates a random or multiple misfire I have a 07 Jeep commander 47 V8, with miles The Random miss firing just recently started, we started by putting the fuel injector cleaner in it Nothing happen
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Jeep grand cherokee fault code p0300- 00 JEEP GRAND CHEROKEE Please help Got an 00 jeep grand Cherokee 47 v8 It is throwing p1756 p0300 and at least 3 diffrent misfire codes for cylinders always different and every cylinder has been pulled First I noticed really bad exhaust manifold leak causen the H02 sensors reading unmetered air Extracted the broken boltsA code P0300 Jeep may mean that one or more of the following has happened Faulty spark plugs or wires Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector(s) Burned exhaust valve Faulty catalytic converter(s) Stuck/blocked EGR valve / passages Faulty camshaft position sensor Defective computer
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P0300 (random misfire) codes can be caused by a lean mixture If you have a scanner which shows live data, then you can see what the fuel trims are If you have a STFT (short term fuel trim) which shows double digit negative at the moment the misfire happens, then a lean misfire is probably your problemNEW 21 JEEP GRAND CHEROKEE HIGH ALTITUDE 4X4 MSRP $57,685 Savings $4,576 Retail Bonus Cash $500 Bonus Cash $750 National Retail Apparently there's one for 21 36 that instructs the tech to replace the spark plugs That's what they did on my wife's 21 Grand Cherokee and the misfire went away Not sure what vehicles it applies to so can't say if it's Grand Cherokee only or applies to the JT as well In any case hers has been fine since they did that
Few months ago I got a P0300 misfire code replaced pluge went away a few weeks later P0300 06 and 05 flashed Checked coil packs Moved 1 and 2 coil over to 5 and 6 Same misfire code 5 and 6 Checked injectors with tester OK Checked for plug gap and was ok Checked for broken or loose wires OKP0308 is a diagnostic trouble code (DTC) for "Cylinder 8 Misfire Detected" This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $ Hi All, I am new to this site I am also having this issue of a code of P0300 but I'm also getting multiple codes with it P0152, P0031, P0037, P0051, and P0057I have replaced all the O2 sensors the codes cleared for about 1015 miles and came back
P0300 was a pending code Over the course of the last week I have Put original plugs back in Swapped coils Swapped boots Swapped wires Swapped injectors Compression tested all 8 and they are all almost identical When at idle, at first start up, I P0300 is a very common OBDII codes that occurs in the Jeep Grand Cherokee It stands for P0300 Random, Multiple Misfire Detected Something is causing cylinders to misfire at random, which is a lot less cut and dry than a cylinder specific misfire code Interpretation of OBD2 Code P0300 Jeep Basically this means that the car's computer has realized that not all engine fat is shooting properly The P0300 Jeep notification code indicates easy or various damage If the last number is a zero number, it equates to a strong number which is confusing
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My jeep is reading multiple random misfires (code p0300) 07 Jeep Grand Cherokee Asked by AUfan85 in Huntsville, AL on Every now and then it hesitates to go when i give it gas and idles hard at times Ive taken it to 3 different places and they say they can't find anything Why still overheating up to 9 with new 2,573 Posts #2 Well p0300 is a random misfire so your problem is something that has to do with all 6 cylinders I would start by checking for vacuum leaks and fuel pressure 1993 Cherokee 33" Duratracs Dana 30/44 Rear detroit 4 Rear Disks P0300 is a very common OBDII codes that occurs in the Jeep Grand Cherokee It stands for P0300 Random, Multiple Misfire Detected P0300 is certainly a cause for concern, and can be a threat to the drivability the Jeep Grand Cherokee It will often be
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13 Jeep Grand Cherokee DD Save Share ReplyJEEP GRAND CHEROKEE P0300 Random Cylinder Misfire 1996 jeep grand cherokee 40L 187k miles Okay well ive been searching and researching this for the past month because id rather not have to dump money into somthing i dont need to replace right now I am showing P0300(RCM) and 3 various cylinder misfiresCome along on a fast and speedy diagnosis and repair of this 00 Jeep Cherokee Classic with a 40 6cyl that has a single cylinder misfire and a check engine
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Re 08 Jeep Liberty 37 Sport P0300 That could be a mechanical or electrical failure The best thing to do is monitor the PCM with the scantool and capture the event when it occurs Thats what the dealer should have done ConfuciousThe P0300 code means that a cylinder (s) is misfiring or is randomly misfiring Start by checking for intake leaks, intake gaskets are common caused of multicylinder misfiring If no leak are found the next step is to replace the spark plugs If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes"Read Free 04 Chevy Silverado Code P0300 With P0171 And Rough Idle section Valuable short cuts Color spark plug diagnosis Complete coverage for your Jeep Grand Cherokee for 05 thru 14 (does not include information specific to diesel engine models) Routine Maintenance Tuneup procedures Engine repair Cooling and heating
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When the electric fuel pump in energized the entire system is pressurized to a certain specification I believe for the 47 liter V8 it is around 48 psi When the electric fuel pump is deenergized a check valve in the pump closes and the system should maintain pressure If an individual injector is leaking then the pressure will decrease P0300 is not a good code to troubleshoot on electronically controlled ignitions More often than not, its an ECU issue when the plugs are fouled like that (otherwise normally a fuel supply issue) Did you put new plugs in? 2 Idle is perfectly smooth even when light is on 3 Light clears itself as soon as the jeep is turned of 4 Light binks 3 times at 50mph than comes on till jeep is shut off 5 The only code pulled up is the p0300 The jeep is currentyl at the dealership getting looked at
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Now I have a P0300 code 24k miles, way too early for a plug change More of a vent, as it will go to the dealer Jeep Gladiator Sport S 18 Jeep Grand Cherokee Ltd 01 Jeep Cherokee Sport 19 Dodge Dakota Sport convertible 1980 Chrysler LeBaron T&C 1979 Chrysler Cordoba TTops A P0300 diagnostic code indicates re misfiring, nor why Jeep Code P0171 Definition System too lean (Bank 1) What Does P0171 Mean For Your Jeep?
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I am getting the rough idle and the random P0300 code The truck runs fantastic outside of idle I see your follow up post and by that did you mean the rear O2 sensors were swapped?Combustion engines run most efficiently when they maintain an airfuel mixture ratio of 147 parts air to 1 part fuel When there are more than 147 parts air to 1 part fuel in the airfuel mixture, a lean condition exists and code P0171 is triggered The lean condition can be caused by The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring Start by checking for intake leaks, intake gaskets are common caused of multicylinder misfiring If no leak are found the next step is to replace the spark plugs If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes"
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Jeep code P0300 indicates that one or more cylinders are experiencing misfires A misfire occurs when an insufficient amount of fuel is burning in a cylinder The efficient burning of fuel is essential to engine operation as the combustion of fuel is what provides the energy to power the engine in your Jeep P0300 P0304 1996 Jeep Grand Cherokee Post by beachnik » Wed 930 am I have a 'many years old' issue with my 1996 Jeep Grand Cherokee Laredo 40L 6 cyl, 2WD, auto trans random misfire P0300 code on Jeep Grand Cherokee Laredo 37L The check engine light (which does blink once in awhile) is a steady light) There is loss of power only when I first start the vehicle and then only seems to last say, for 34 minutes and disappears and full power seems to return but the engine light stays 'on' For awhile, it seemed that the loss of power
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Half the time you'll get a P0300 code with associated roughness and a flashing CEL The other half of the time the computer will narrow it down to a cylinder, but most of the time its the WRONG ONE!!! Joined 1,722 Posts #4 9 times outta 10 when you only get a p0300 code (random cylinder misfire) Usually means that no one cylinder is misfiring enough to trigger a more specific code resulting in either bad gas, bad ecm, etc 1 4 of 4 Posts ABN Engine Oil Pressure and Transmission Fluid Diagnostic Tester Tool Kit – 500 PSI / 35 Bar Gauge, Hose, and Adapters $2399 TAC Running Boards Fit 1121 Jeep Grand Cherokee (Exclude Limited X, High Altitude, SRT, SRT8, Trackhawk, Trailhawk, Summit) Aluminum Black Side Bars Step Rails Running Boards 2 Pieces $
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Our Jeep Grand Cherokee SRT8 Forum is a community dedicated to Jeep enthusiasts to discuss specs, horsepower, reviews and more! 06 Jeep Grand Cherokee P0300 Post by JGC06 » Tue 531 am I am trying to diagnose a P0300 fault code on my 06 Jeep Grand Cherokee 37L When I start the vehicle I can feel it running rough once my RPM start coming down to idle This only lasts a few minutes if than until the engine starts to warm up and then it seems to run SOURCE my 01 jeep grand cherokee laredo is having P0300 Diagnostic Code Random/Multiple Cylinder Misfire Detected Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly A P0300 diagnostic code indicates a random or multiple misfire
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The Jeep Cherokee is a rugged, spacious American classic that gets great fuel economy without sacrificing utility To find out more, call (847) Grand Cherokee P0300 OBDII Code Symptoms 1 The P0300 Jeep trouble code will trigger the Grand Cherokee's service engine soon light 2 The vehicle itself may begin to run rough It depends on how serious the misfire is 3 The vehicle may produce excess vibration, espescially at Grand Cherokee P0303 OBDII Code Symptoms The P0303 trouble code will trigger the Grand Cherokee's service engine soon light The vehicle itself may begin to run rough It depends on how serious the misfire is, and how many cylinder's the engine has The vehicle may produce excess vibration, especially at lower RPM
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I replaced the distributor cap, the rotor and the throttle positioning sensor, and the truck is still running as rough as it was, but the P0300 code is gone now NOW, I have a P0705 code that according to google and a couple of Jeep forums should be a transmission range sensor circuit malfunction or the neutral safety switch 04 Grand Cherokee 40L random multiple misfire P,2,3,4,5,6 The problem The engine Idles fine however while under load (accelerating) the check engine light flashes and eventually the engine sputters out as if it were only firing on 2 cylinders and was horribly out of timingFull Forum Listing Explore Our
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SOURCE my 01 jeep grand cherokee laredo is having P0300 Diagnostic Code Random/Multiple Cylinder Misfire Detected Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly A P0300 diagnostic code indicates a random or multiple misfireJeep code P0300 indicates that one or more cylinders are experiencing misfires A misfire occurs when an insufficient amount of fuel is burning in a cylinder The efficient burning of fuel is essential to engine operation as the combustion of fuel is what provides the
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