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P0300 Diagnostic Trouble Code Discussion for March 2013

Multiple Misfire Detected *

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Trouble Ticket Help Requests for DTC P0300

	Help Request	Posted
	2007 Dodge Nitro R/T 4.0L Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1D8GU586X7 P0300: Multiple Cylinder Misfire. Thank you for all your help in advance. I have a 2007 dodge nitro r/t. This vechile has been to 3 dealerships and several independent shops and now has landed in my bay. Customer informed me the vechile originaly went in to dealer ship for unrelated repair and...	March 04, 2013
	2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75 P0300: random misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...	March 04, 2013
	2001 Chevrolet Blazer LS 4.3L Hesitation, Surge, MIL Lamp on VIN: 1GNCT18W81 P0300: Multiple Cylinder Misfire Detected. ... kicking by butt! Customer brought the vehicle in for hesitation and surge problem. Had codes for almost all the cylinders, and the random misfire. Other tech before me diagnosted it as a bad crank sensor. He read some info on idenifix about installing a pa...	March 05, 2013
	2005 Ford F-250 Super Duty Lariat 5.4L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1FTSW21565 P0300: Random Misfire Detected. ... f-250 with 5.4l 3 valve engine with 200,000 miles. Truck runs very rough at idle then will smooth out and run fine. road test and truck will barely pull itself. never dies but has no power then will go for a while (runs poorly but will run). cylinder contr...	March 06, 2013
	2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75 P0300: random misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...	March 06, 2013
	2003 Saab 9-3 Linear 2.0L Excessive Emissions, Poor Idle Quality, Surge, Misfire VIN: YS3FB45S03 P0300: only after idling for 5 to 10 seconds. ... go with this Saab. It runs and drives flawlessly off idle, and has no codes driving along. If vehicle isn't allowed to idle for more than 10 seconds, there are no issues. It toggles in and out of closed loop and seems to get worse when in open loop, but st...	March 06, 2013
	2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657 P0300: Engine Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...	March 07, 2013
	2002 BMW X5 3.0i 3.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 5UXFA53552 P0300: Random misfire. ... 11 codes;p0300,p0305,p1344,p1342,p1349,p1347,p0171,p0174,p1083 ,p1085,p0141, im thing it might have a bad mass air flow sensor, thanks for the help	March 08, 2013
	2009 Chevrolet Equinox LS 3.4L MIL Lamp on VIN: 2CNDL13F49 P0300: random cylinder misfre. car has all the codes mentioned. plugs wires were changed. customer says then check engine light comes on, the traction control light also comes on and looses power. i am thinking bad throttle body. did the testing as per all data. just wanted to see what othe...	March 08, 2013
	2003 Pontiac Sunfire SE 2.2L Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1G2JB12F13 P0300: Multiple Engine Misfire Detected. thanks for any help i may recieve.tuned up motor 2 weeks ago.now engine runs rough surges check engine light on code po300.i belive the light was on before customer requested tune up.installed double platinum autolites plugs.engine makes a sound hard to explai...	March 08, 2013
	2009 Chevrolet Equinox LS 3.4L MIL Lamp on VIN: 2CNDL13F49 P0300: random cylinder misfre. car has all the codes mentioned. plugs wires were changed. customer says then check engine light comes on, the traction control light also comes on and looses power. i am thinking bad throttle body. did the testing as per all data. just wanted to see what othe...	March 09, 2013
	1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V P0300: Multiple Cylinder Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...	March 11, 2013
	2007 Volkswagen Jetta 2.5 2.5L Misfire, MIL Lamp on VIN: 3VWPG71K77 P0300: random misfire. Thanks in advance for help. Car came in with mil on, and intermittent misfire. Since it is a intermittent problem, we decided to swap coils 3 with 2. Tested all injector resistance, all tested same. looked for wiring issues in obvious places. found no problems...	March 11, 2013
	1999 Honda Accord EX 3.0L Hesitation, Misfire VIN: 1HGCG1650X P0300: Multiple Misfire Detected. fuel pressure normal 41 psi with vacuum disconnected	March 12, 2013
	1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V P0300: Multiple Cylinder Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...	March 12, 2013
	2006 Ford Fusion SEL 3.0L Misfire, MIL Lamp on VIN: 3FAFP08186 P0300: Random misfire/misfire on start-up. Vehicle came in with random misfire, and codes for front bank misfires. 4, 5, 6. scanned computer and observed bank 2 downstream O2 sensor flatlined. Installed new sensor and ran self test with normal operation. Vehicle returned with same codes and O2 flatline...	March 13, 2013
	2007 GMC Yukon XL 1500 SLE 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKFK16367 P0300: Multiple Engine Misfire Detected. We have a 2007 Yukon XL 1500 with a misfire on #1 and #8. #1 cylinder is filling up with gas. When it first arrived there was zero compression on #1. we replaced the injector, removed the valve cover to check for any spring issue. removed the intake and found ...	March 13, 2013
	1999 Honda Accord EX 3.0L Hesitation, Misfire VIN: 1HGCG1650X P0300: Multiple Misfire Detected. fuel pressure normal 41 psi with vacuum disconnected	March 13, 2013
	2003 Volkswagen Passat GLS 1.8L Misfire VIN: WVWVD63B13 P0300: Random misfire. Engine just started exhibiting a misfire at idle issue. No external vacuum leaks were found. Moving the coils around did not change any codes. Could hear what sounded like a vacuum leak coming from the pressure diverter valve. Removed it and found that the ins...	March 13, 2013
	2007 Chevrolet Avalanche LTZ 5.3L Misfire VIN: 3GNFK12347 P0300: Multiple Engine Misfire Detected. ... cylinder when the computer commands 4-cylinder operation mode. Once it trips the code P0305, it won't command 4-cylinder operation and doesn't miss again. Not sure if you can feel the misfire when it acts up because it runs rougher on 4 cylinders. This is ...	March 14, 2013
	1997 Buick Riviera 3.8L Stall VIN: 1G4GD2216V P0300: Engine Misfire Detected. Car came in originally for a crank no start. Found injector number 4 stuck wide open causing hard start and misfire. Replaced two injectors and put a set of spark plugs in it. Car started and ran great. After car would sit for 3 hours it would have a long cran...	March 15, 2013
	2005 Ford Taurus SE 3.0L Poor Idle Quality, Misfire VIN: 1FAFP53U55 P0300: Random cylinder misfire. ... We initially got this car in our shop around 63,000 miles. We did a full tune up (plugs, wires, and fuel filter) as well as intake gaskets. I don't have what the codes were then, but I would assume lean and misfire. That was back in 2010. The car has run f...	March 19, 2013
	2004 Chevrolet Suburban 1500 LS 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC16ZX4 P0300: Multiple Cylinder Misfire Detected. Hi there, This vehicle has a miss on every cylinder on the driver's side. TSB's indicate a possible intake manifold gasket leak. I can't confirm the leak with any testing so I thought I would ask before tearing into it. What is the likelyhood that it is the pr...	March 20, 2013
	2006 Ford Fusion SEL 3.0L Misfire, MIL Lamp on VIN: 3FAFP08186 P0300: Random misfire/misfire on start-up. Vehicle came in with random misfire, and codes for front bank misfires. 4, 5, 6. scanned computer and observed bank 2 downstream O2 sensor flatlined. Installed new sensor and ran self test with normal operation. Vehicle returned with same codes and O2 flatline...	March 20, 2013
	2005 Ford Taurus SE 3.0L Poor Idle Quality, Misfire VIN: 1FAFP53U55 P0300: Random cylinder misfire. ... We initially got this car in our shop around 63,000 miles. We did a full tune up (plugs, wires, and fuel filter) as well as intake gaskets. I don't have what the codes were then, but I would assume lean and misfire. That was back in 2010. The car has run f...	March 21, 2013
	2004 BMW 325i 2.5L Misfire VIN: WBAET37414 P0300: . ... uphill had misfire codes and airflow codes secondary air code. found air tube taped up replaced still misfires on hard accelerations .kicks p0305 p0306 and air flow codes. replaced spark plugs (looked original) tried swa...	March 23, 2013
	2004 BMW 325i 2.5L Misfire VIN: WBAET37414 P0300: . ... uphill had misfire codes and airflow codes secondary air code. found air tube taped up replaced still misfires on hard accelerations .kicks p0305 p0306 and air flow codes. replaced spark plugs (looked original) tried swa...	March 25, 2013
	2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657 P0300: Engine Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...	March 25, 2013
	2006 Honda Ridgeline RT 3.5L MIL Lamp on VIN: 2HJYK16216 P0300: Random Misfire Detected. Honda gurus, vehicle has been to local Honda shop numerous times for problem. Owner frustrated- arrived with multiple misfire codes, replaced plugs, clean throttle body and decarbon due to mileage- vehicle returned 2 weeks later with #6 misfire and multiple mi...	March 25, 2013
	1997 BMW 740iL 4.4L Misfire VIN: WBAGJ8326V P0300: random missfire. this car came in with the complaint of steering wheeel pulsating when turning and dome lights flickering at the same time after about a 3 mi test drive the steering wheel started to pulsate with me and the dome lights where flickering on and off dim brought it...	March 26, 2013
	2003 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNES16S73 P0300: Multiple Engine Misfire Detected. Hello every one, i have a chevy here that came to me from another shop. Owner said it had been misfiring so he had plugs changed and plug wires as it also had loss of power. I checked the basics such as filters, fuel and air and oil quality,all were good but t...	March 27, 2013
	2004 Mercury Mountaineer 4.0L No Start, Stall, MIL Lamp on VIN: 4M2DU86K04 P0300: Random misfire. This truck came in as a no start.Customer says they were driving down the road when it started shaking , wouldnt accellerate and had the rotten egg smell and died and wouldnt restart. When we got it it started and was making alot of noise so i shut it off and ...	March 27, 2013
	2007 Audi A3 2.0L Misfire VIN: WAUHF78PX7 In past 1 year and 4 mos this vehicle had misfire issues. Initially we changed all 4 plugs and coils with OEM as it is common. Did air filter and mass air cleaning. Seemed to clear up. Then came back running badly a month later. We found bad High Pressure Fuel...	March 28, 2013
	1996 Chevrolet Lumina 3.1L No Start, Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: 2G1WL52M0T P0300: Multiple Engine Misfire Detected. This car came in just over a week ago for a surge/misfire issue. Car ran ok so we went to the plugs. Original plugs so they were changed, test drove and all was good? Cuat. picked up car made a couple blocks and the surge/misfire was back and the SES light cam...	March 28, 2013
	2007 Chevrolet Avalanche LTZ 5.3L Misfire VIN: 3GNFK12347 P0300: Multiple Engine Misfire Detected. ... cylinder when the computer commands 4-cylinder operation mode. Once it trips the code P0305, it won't command 4-cylinder operation and doesn't miss again. Not sure if you can feel the misfire when it acts up because it runs rougher on 4 cylinders. This is ...	March 28, 2013
	2007 Jeep Liberty Sport 3.7L mil lamp VIN: 1J4GL48K67 P0300: Multiple Cylinder Misfire. Hi Guys This car is running rough. Has p0300 and others. Figuring out what is causing it to misfire is easy. The trouble I'm having is the MIL is not lit with the engine running. The MIL is on with KOEO. No MIL with KOER with codes stored in PCM. It had 4 c...	March 28, 2013
	2007 Jeep Liberty Sport 3.7L mil lamp VIN: 1J4GL48K67 P0300: Multiple Cylinder Misfire. Hi Guys This car is running rough. Has p0300 and others. Figuring out what is causing it to misfire is easy. The trouble I'm having is the MIL is not lit with the engine running. The MIL is on with KOEO. No MIL with KOER with codes stored in PCM. It had 4 c...	March 29, 2013
	2008 Dodge Grand Caravan SE 3.3L Hesitation, Stall, Misfire VIN: 2D8HN44H08 P0300: . Customer complaint of hesitation and stalling when change gears and at idle. Vehicle misfires intermittently and stalls. I was able to get it to stall in the shop by switching gears back and forth from drive to reverse. When van acts up I am able to see on sca...	March 30, 2013
	1999 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NE12T5X P0300: Multiple Cylinder Misfire Detected. ... no start but almost would. low battery. charged battery. check codes with my mack scanner. had po300. engaged starter, acted flooded but did start, ran rough but cleared up. ran for a cpl minutes then just died. no restart, backfire while cranking. check f...	March 30, 2013