P0304 Diagnostic Trouble Code Discussion for August 2015
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2006 Toyota Prius 1.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JTDKB20UX6 P0304: Cylinder 4 Misfire Detected. ... in a few weeks ago, we could not get vehicle to run rough with hours of run time, only code stored was P0304. Recommended customer return when problem is more apparent. Customer returned 1.5 months later with mil on, cust... |
August 11, 2015 | |
| 2005 Ford Expedition XLT 5.4L Poor Idle Quality, Misfire, vacuum in crankcase VIN: 1FMPU16535 P0304: Cylinder 4 misfire. Customer driving down highway, heard a pop noise and lost power. Vehicle would not go over 30 mph. Pulled over and towed to shop. Started with misfire, then realilzed that crankcase is in a heavy vacuum. Remove the oil cap and vehicle dies. Remove dipstick and... |
August 12, 2015 | |
| 2009 Volkswagen Jetta S 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWHM71K69 P0304: cylinder 4 misfire. Thanks for your help. We don't see many of these so any help from a vw tech or someone who knows these cars i'd be grateful. This jetta came in with the mil lamp on & running bad. I cranked it up & saw the mil light flashing along with what felt like a... |
August 14, 2015 | |
| 2005 Lincoln LS Luxury 3.0L Misfire VIN: 1LNHM86S55 P0304: Cyl 4 misfire. I have not yet check compression or back pressure on bank two , i have confirmed new coils and plugs were installed . And it is getting fuel. I am suspecting a coil circuit problem or cam timing issue . Any tips suggestions or been there done that help please. |
August 17, 2015 | |
| 2012 Ford F-250 Super Duty Lariat 6.2L Misfire VIN: 1FT7X2B66C P0304: Cyl 4 misfire. Vehicle came in barely running. Checked codes all misfire codes same bank. Unhooked exhaust pipe on right bank to check for plugged cat no change. Checked for melted plugs all okay. Would like to ask if variable valve timing could be causing such a problem. If... |
August 20, 2015 | |
| 2008 Honda Accord EX 3.5L Misfire, MIL Lamp on VIN: 1HGCP36888 P0304: 4 cly misfire. Has misfire codes for bank 2. car seems to run OK and have never felt misfires. We have changed plugs, swapped coils, swapped injectors. Compression test Cly 1,2,&3 190 to 195#s--Cly 4,5,&6 165 to 170#s. Pulled front apart checked timing belt was right... |
August 27, 2015 | |
| 2002 Toyota Tundra SR5 4.7L Misfire, MIL Lamp on VIN: 5TBBT441X2 P0304: Cylinder 4 Misfire Detected. only acts up under very heavy load |
August 28, 2015 | |
| 2003 Ford Explorer XLT 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73W43 P0304: Misfire cyl 4. Now a month later it comes back with P0304 and again contribution on 8 is nearly as bad as 4. It is only after initial flare up when the idle is around 800rpm. Off throttle at 1000rpm it is smooth as silk, showing no misfires. I again swapped coils with new an... |
August 29, 2015 | |
| 2000 Porsche 911 Carrera 3.4L Misfire, MIL Lamp on VIN: WP0AA2992Y P0304: cyl. 4 misfire. What seemed like a simple fix has become swomewhat of a problem. Customers original complaint was an intermittent misfire on #1 cylinder. I replaced the spark plugs and #1 ignition coil, cleared the codes and road tested the vehicle after which it developed a ... |
August 31, 2015 |
