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P0300 Diagnostic Trouble Code Discussion for November 2012

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2008 Jeep Liberty Sport 3.7L Misfire VIN: 1J8GN28K28
P0300: Random Misfire. I am out on holidays and got roped into this. Jeep has a slight hesitation was worse before plugs were replaced. Code 0300 comes back fairly soon after being cleared. Thanks for taking the time to help
November 04, 2012
2001 Chrysler Town & Country (Van) LX 3.3L Excessive Emissions, Hesitation, Misfire VIN: 2C4GP44361
P0300: multiple missfires. Original problem was stumbles and stalling when accelerating from a stop. Note: original problem did not set any codes. I did not find excessive exhaust pressure [below 1.5lb at 2500rpm]and drivability was good when at cruise, But still do not have precise pr...
November 05, 2012
2009 Jeep Wrangler Unlimited Sahara 3.8L Poor Idle Quality, MIL Lamp on VIN: 1J4GA59189
P0300: multiple cylinder misfire. The owner brings this one in for a grinding noise at cold start ups and the check engine lamp is flashing. The vehicle is running rough. I look at the misfire monitor and it is all over the place. There is no consistent cylinder misfiring. Sometimes five cylin...
November 05, 2012
2009 Jeep Wrangler Unlimited Sahara 3.8L Poor Idle Quality, MIL Lamp on VIN: 1J4GA59189
P0300: multiple cylinder misfire. The owner brings this one in for a grinding noise at cold start ups and the check engine lamp is flashing. The vehicle is running rough. I look at the misfire monitor and it is all over the place. There is no consistent cylinder misfiring. Sometimes five cylin...
November 06, 2012
2009 Volkswagen Tiguan SE 2.0L Misfire, MIL Lamp on VIN: WVGBV75N99
P0300: Multiple misfire. ... running. We connected our scan tools and found p0300, p0301 and p0304. The first thing we did was clear the codes and was able to drive the vehicle for 10-12 miles without any codes returning. ...
November 06, 2012
2009 Volkswagen Tiguan SE 2.0L Misfire, MIL Lamp on VIN: WVGBV75N99
P0300: Multiple misfire. ... running. We connected our scan tools and found p0300, p0301 and p0304. The first thing we did was clear the codes and was able to drive the vehicle for 10-12 miles without any codes returning. ...
November 07, 2012
2009 Jeep Patriot Sport 2.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4FF28B69
P0300: mulitple misfire. we have a good one on our hands. the vehicle came in as a no start. it had three codes in it with the 300,315, and 335. we put a crank sensor in it and it started. it ran very well for a few minutes and then all of the sudden it started to misfire. so we turne...
November 08, 2012
2000 Chevrolet Venture 3.4L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDX03EXY
P0300: Multiple Cylinder Misfire Detected. I am having trouble with this Venture van with a 3.4liter v-6. I have worked on many of these engines and have replaced head gaskets, intake gaskets, rebuilt them with no problems. However, this one is troublesome. Initial problem was spiking coolant temperat...
November 10, 2012
1996 Toyota Land Cruiser 4.5L MIL Lamp on VIN: JT3HJ85J2T
P0300: Multiple Cylinder Misfire Detected. intermittant p0300 cannot get it to set in shop. last time customer drove 10 miles then light came back on. I suspect crank sensor or valve adjustment. engine idling vacuume reading 21" solid. snap throttle then 24" for a bit. the crank sensor wires ...
November 10, 2012
2000 Chevrolet Venture 3.4L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDX03EXY
P0300: Multiple Cylinder Misfire Detected. I am having trouble with this Venture van with a 3.4liter v-6. I have worked on many of these engines and have replaced head gaskets, intake gaskets, rebuilt them with no problems. However, this one is troublesome. Initial problem was spiking coolant temperat...
November 11, 2012
2002 Toyota Camry LE 3.0L Misfire VIN: JTDBF30K72
P0300: Multiple Cylinder Misfire Detected. ... engine, vsc and trac off set at the same time. I scanned vehicle had codes p0300 p0301 p0303 p0305 p0306 p0172 p0174 p0330 p1300 p1305 p1315 p1325. Vehicle starts up, misfires at idle worsens...
November 11, 2012
2007 Dodge Ram 1500 Truck TRX4 5.7L No Start, Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1D7HU18267
P0300: Multiple Misfire Detected. This truck was just in a week or so ago for a transfer case shift motor, struts, and shocks. Ran fine. Came in on the hook. Won't stay running for more than 15 sec. When it is running it idles up and down, nearly stalling until it finaly dies. The smoke coming...
November 13, 2012
2006 Ford F-150 XLT 5.4L Hesitation VIN: 1FTPW14526
P0300: Random misfire. Customer complained of low power scanned truck and found p0430 and misfire code for number 8 cylinder replaced number 8 coil and warranty spark plug since plugs were replaced not long ago also changed both converters and installed new fuel filter truck runs al...
November 13, 2012
2008 Jeep Liberty Sport 3.7L Misfire VIN: 1J8GN28K28
P0300: Random Misfire. I am out on holidays and got roped into this. Jeep has a slight hesitation was worse before plugs were replaced. Code 0300 comes back fairly soon after being cleared. Thanks for taking the time to help
November 13, 2012
1999 Chevrolet Malibu 2.4L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1G1ND52T2X
P0300: Multiple Cylinder Misfire Detected. ok guys, first time ive posted here and really need help. weve had this car at the shop for months. originally the motor was blown up and so another tech replaced it and it sat for about 5 months ocasionally being started and ran. we owned the car as the custo...
November 14, 2012
2002 Toyota Camry LE 3.0L Misfire VIN: JTDBF30K72
P0300: Multiple Cylinder Misfire Detected. ... engine, vsc and trac off set at the same time. I scanned vehicle had codes p0300 p0301 p0303 p0305 p0306 p0172 p0174 p0330 p1300 p1305 p1315 p1325. Vehicle starts up, misfires at idle worsens...
November 14, 2012
1999 Chrysler Sebring JX 2.5L Misfire, MIL Lamp on VIN: 3C3EL45H4X
P0300: Multiple Cylinder Misfire Detected. ... transmission replaced 2 years ago ( jasper reman on both and not cheap). Customer was complaining of trans " not acting right" and check engine lamp flashing then on. Trans was in limp in due to p0725 ( crank sensor input to tcm) and when flashing ...
November 15, 2012
2004 Ford Freestar SE 3.9L Hesitation, Misfire, MIL Lamp on VIN: 2FMZA51654
... was installed, and tune up was performed. About 8 months ago the SES cam on with a cam sensor code. Replaced the sensor and syncro with a new NAPA part. Then after I replaced the sensor the SES came back on with P0301, P030...
November 15, 2012
2000 Mazda Miata 1.8L Misfire, MIL Lamp on VIN: JM1NB3534Y
P0300: Random Misfire Detected. I have removed the egr and cleaned out the passage. Than repaced the egr valve. We replace the pcm when all else has failed to correct the problem.
November 15, 2012
2006 Chevrolet Impala LS 3.5L Misfire VIN: 2G1WB58K66
P0300: Multiple Engine Misfire Detected. car has intermittent miss on cyl 2, sometimes 5. Changed plugs,wires, coil pack, no change. pulled upper intake swapped injector to cyl 4, no change. checked ex backpressure with guage, no restriction. ran with o2 out also, still no change. fuel press good. wi...
November 16, 2012
1996 Chevrolet Impala SS 5.7L Misfire VIN: 1G1BL52P9T
P0300: Multiple Engine Misfire Detected. ... fires on bank 2,#1 very many.Looked around rt side found pvc and hose in poor shape and leaking, replaced and miss fire on bank 2 went down, but not enough. When I raise idle miss fire goes away.Fuel trim is at 17 and when I apply vacume to fuel pressure r...
November 17, 2012
2003 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK24U03
P0300: Multiple Engine Misfire Detected. ... is driving me crazy. I did full tune up in it last fall and replaced both exhaust manifolds since they had broken apart and the studs had corroded off. After doing all of that the truck definetly ran better than it did when it first got into my shop. Short...
November 27, 2012
2002 Chevrolet Express 1500 5.7L Misfire VIN: 1GBFG15R72
P0300: Multiple Cylinder Misfire Detected. I have been over and over this vehicle. Replaced distributor cap, distributor, checked vacuum from oil dipstick tube with pcv blocked and found no vacuum to rule out intake leak. Misses on random cylinders, if distributor cam sensor is unplugged the tech 2 wil...
November 28, 2012
2002 Chevrolet Express 1500 5.7L Misfire VIN: 1GBFG15R72
P0300: Multiple Cylinder Misfire Detected. I have been over and over this vehicle. Replaced distributor cap, distributor, checked vacuum from oil dipstick tube with pcv blocked and found no vacuum to rule out intake leak. Misses on random cylinders, if distributor cam sensor is unplugged the tech 2 wil...
November 29, 2012
2006 Ford Freestar Limited 4.2L Poor Idle Quality, Misfire VIN: 2FMZA56246
P0300: Random Misfire. This van was brought in with ignition wires chewed by mice. Scan for codes 3 codes present po300 and po306 also an O2 codes B2S2 . Replace ignition wires and plugs and O2 sensor B2S2. No change in van running. Rescan and the 2 cylinder misfire codes returned. ...
November 29, 2012
1999 Chrysler Sebring JX 2.5L Misfire, MIL Lamp on VIN: 3C3EL45H4X
P0300: Multiple Cylinder Misfire Detected. ... transmission replaced 2 years ago ( jasper reman on both and not cheap). Customer was complaining of trans " not acting right" and check engine lamp flashing then on. Trans was in limp in due to p0725 ( crank sensor input to tcm) and when flashing ...
November 30, 2012
2008 Jeep Liberty Sport 3.7L Misfire VIN: 1J8GN28K28
P0300: Random Misfire. I am out on holidays and got roped into this. Jeep has a slight hesitation was worse before plugs were replaced. Code 0300 comes back fairly soon after being cleared. Thanks for taking the time to help
November 04, 2012
2001 Chrysler Town & Country (Van) LX 3.3L Excessive Emissions, Hesitation, Misfire VIN: 2C4GP44361
P0300: multiple missfires. Original problem was stumbles and stalling when accelerating from a stop. Note: original problem did not set any codes. I did not find excessive exhaust pressure [below 1.5lb at 2500rpm]and drivability was good when at cruise, But still do not have precise pr...
November 05, 2012
2009 Jeep Wrangler Unlimited Sahara 3.8L Poor Idle Quality, MIL Lamp on VIN: 1J4GA59189
P0300: multiple cylinder misfire. The owner brings this one in for a grinding noise at cold start ups and the check engine lamp is flashing. The vehicle is running rough. I look at the misfire monitor and it is all over the place. There is no consistent cylinder misfiring. Sometimes five cylin...
November 05, 2012
2009 Jeep Wrangler Unlimited Sahara 3.8L Poor Idle Quality, MIL Lamp on VIN: 1J4GA59189
P0300: multiple cylinder misfire. The owner brings this one in for a grinding noise at cold start ups and the check engine lamp is flashing. The vehicle is running rough. I look at the misfire monitor and it is all over the place. There is no consistent cylinder misfiring. Sometimes five cylin...
November 06, 2012
2009 Volkswagen Tiguan SE 2.0L Misfire, MIL Lamp on VIN: WVGBV75N99
P0300: Multiple misfire. ... on and intermittent rough running. We connected our scan tools and found p0300, p0301 and p0304. The first thing we did was clear the codes and was able to drive the vehicle for 10-12 miles without any codes returning. ...
November 06, 2012
2009 Volkswagen Tiguan SE 2.0L Misfire, MIL Lamp on VIN: WVGBV75N99
P0300: Multiple misfire. ... on and intermittent rough running. We connected our scan tools and found p0300, p0301 and p0304. The first thing we did was clear the codes and was able to drive the vehicle for 10-12 miles without any codes returning. ...
November 07, 2012
2009 Jeep Patriot Sport 2.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4FF28B69
P0300: mulitple misfire. we have a good one on our hands. the vehicle came in as a no start. it had three codes in it with the 300,315, and 335. we put a crank sensor in it and it started. it ran very well for a few minutes and then all of the sudden it started to misfire. so we turne...
November 08, 2012
2000 Chevrolet Venture 3.4L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDX03EXY
P0300: Multiple Cylinder Misfire Detected. I am having trouble with this Venture van with a 3.4liter v-6. I have worked on many of these engines and have replaced head gaskets, intake gaskets, rebuilt them with no problems. However, this one is troublesome. Initial problem was spiking coolant temperat...
November 10, 2012
1996 Toyota Land Cruiser 4.5L MIL Lamp on VIN: JT3HJ85J2T
P0300: Multiple Cylinder Misfire Detected. intermittant p0300 cannot get it to set in shop. last time customer drove 10 miles then light came back on. I suspect crank sensor or valve adjustment. engine idling vacuume reading 21" solid. snap throttle then 24" for a bit. the crank sensor wires ...
November 10, 2012
2000 Chevrolet Venture 3.4L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDX03EXY
P0300: Multiple Cylinder Misfire Detected. I am having trouble with this Venture van with a 3.4liter v-6. I have worked on many of these engines and have replaced head gaskets, intake gaskets, rebuilt them with no problems. However, this one is troublesome. Initial problem was spiking coolant temperat...
November 11, 2012
2002 Toyota Camry LE 3.0L Misfire VIN: JTDBF30K72
P0300: Multiple Cylinder Misfire Detected. ... engine, vsc and trac off set at the same time. I scanned vehicle had codes p0300 p0301 p0303 p0305 p0306 p0172 p0174 p0330 p1300 p1305 p1315 p1325. Vehicle starts up, misfires at idle worsens...
November 11, 2012
2007 Dodge Ram 1500 Truck TRX4 5.7L No Start, Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1D7HU18267
P0300: Multiple Misfire Detected. This truck was just in a week or so ago for a transfer case shift motor, struts, and shocks. Ran fine. Came in on the hook. Won't stay running for more than 15 sec. When it is running it idles up and down, nearly stalling until it finaly dies. The smoke coming...
November 13, 2012
2006 Ford F-150 XLT 5.4L Hesitation VIN: 1FTPW14526
P0300: Random misfire. Customer complained of low power scanned truck and found p0430 and misfire code for number 8 cylinder replaced number 8 coil and warranty spark plug since plugs were replaced not long ago also changed both converters and installed new fuel filter truck runs al...
November 13, 2012
2008 Jeep Liberty Sport 3.7L Misfire VIN: 1J8GN28K28
P0300: Random Misfire. I am out on holidays and got roped into this. Jeep has a slight hesitation was worse before plugs were replaced. Code 0300 comes back fairly soon after being cleared. Thanks for taking the time to help
November 13, 2012
1999 Chevrolet Malibu 2.4L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1G1ND52T2X
P0300: Multiple Cylinder Misfire Detected. ok guys, first time ive posted here and really need help. weve had this car at the shop for months. originally the motor was blown up and so another tech replaced it and it sat for about 5 months ocasionally being started and ran. we owned the car as the custo...
November 14, 2012
2002 Toyota Camry LE 3.0L Misfire VIN: JTDBF30K72
P0300: Multiple Cylinder Misfire Detected. ... engine, vsc and trac off set at the same time. I scanned vehicle had codes p0300 p0301 p0303 p0305 p0306 p0172 p0174 p0330 p1300 p1305 p1315 p1325. Vehicle starts up, misfires at idle worsens...
November 14, 2012
1999 Chrysler Sebring JX 2.5L Misfire, MIL Lamp on VIN: 3C3EL45H4X
P0300: Multiple Cylinder Misfire Detected. ... transmission replaced 2 years ago ( jasper reman on both and not cheap). Customer was complaining of trans " not acting right" and check engine lamp flashing then on. Trans was in limp in due to p0725 ( crank sensor input to tcm) and when flashing ...
November 15, 2012
2004 Ford Freestar SE 3.9L Hesitation, Misfire, MIL Lamp on VIN: 2FMZA51654
... was installed, and tune up was performed. About 8 months ago the SES cam on with a cam sensor code. Replaced the sensor and syncro with a new NAPA part. Then after I replaced the sensor the SES came back on with P0301, P030...
November 15, 2012
2000 Mazda Miata 1.8L Misfire, MIL Lamp on VIN: JM1NB3534Y
P0300: Random Misfire Detected. I have removed the egr and cleaned out the passage. Than repaced the egr valve. We replace the pcm when all else has failed to correct the problem.
November 15, 2012
2006 Chevrolet Impala LS 3.5L Misfire VIN: 2G1WB58K66
P0300: Multiple Engine Misfire Detected. car has intermittent miss on cyl 2, sometimes 5. Changed plugs,wires, coil pack, no change. pulled upper intake swapped injector to cyl 4, no change. checked ex backpressure with guage, no restriction. ran with o2 out also, still no change. fuel press good. wi...
November 16, 2012
1996 Chevrolet Impala SS 5.7L Misfire VIN: 1G1BL52P9T
P0300: Multiple Engine Misfire Detected. Changed oil and scanned. Found miss fires on bank 2,#1 very many.Looked around rt side found pvc and hose in poor shape and leaking, replaced and miss fire on bank 2 went down, but not enough. When I raise idle miss fire goes away.Fuel trim is at 17 and when I...
November 17, 2012
2003 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK24U03
P0300: Multiple Engine Misfire Detected. ... is driving me crazy. I did full tune up in it last fall and replaced both exhaust manifolds since they had broken apart and the studs had corroded off. After doing all of that the truck definetly ran better than it did when it first got into my shop. Short...
November 27, 2012
2002 Chevrolet Express 1500 5.7L Misfire VIN: 1GBFG15R72
P0300: Multiple Cylinder Misfire Detected. I have been over and over this vehicle. Replaced distributor cap, distributor, checked vacuum from oil dipstick tube with pcv blocked and found no vacuum to rule out intake leak. Misses on random cylinders, if distributor cam sensor is unplugged the tech 2 wil...
November 28, 2012
2002 Chevrolet Express 1500 5.7L Misfire VIN: 1GBFG15R72
P0300: Multiple Cylinder Misfire Detected. I have been over and over this vehicle. Replaced distributor cap, distributor, checked vacuum from oil dipstick tube with pcv blocked and found no vacuum to rule out intake leak. Misses on random cylinders, if distributor cam sensor is unplugged the tech 2 wil...
November 29, 2012
2006 Ford Freestar Limited 4.2L Poor Idle Quality, Misfire VIN: 2FMZA56246
P0300: Random Misfire. This van was brought in with ignition wires chewed by mice. Scan for codes 3 codes present po300 and po306 also an O2 codes B2S2 . Replace ignition wires and plugs and O2 sensor B2S2. No change in van running. Rescan and the 2 cylinder misfire codes returned. ...
November 29, 2012
1999 Chrysler Sebring JX 2.5L Misfire, MIL Lamp on VIN: 3C3EL45H4X
P0300: Multiple Cylinder Misfire Detected. ... transmission replaced 2 years ago ( jasper reman on both and not cheap). Customer was complaining of trans " not acting right" and check engine lamp flashing then on. Trans was in limp in due to p0725 ( crank sensor input to tcm) and when flashing ...
November 30, 2012