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P0306 Diagnostic Trouble Code Discussion for December 2009

Cylinder 6 Misfire Detected


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Trouble Ticket Help Requests for DTC P0306
Help Request Posted
1998 Chrysler Concorde LXi 3.2L Misfire VIN: 2C3HD46J6W
P0306: Cylinder 6 Misfire Detected. ... its my own car!P0306 sets (not flashing)when cold only, there is a slight rough idle cold,misfire counter shows #6 cyl counting up to approx 250 then back to 0 then back up,100-200 rpm off idle the mis is gone,i have swaped plugs and coils,replaced the inj...
December 02, 2009
2000 Mercedes-Benz ML320 3.2L Misfire VIN: WDC1631132
P0306: missfire no 6 cyl.inder. ... approx 80kph up hill when he backs off the accelerator he can feel a miss in engine,this leaves code p0306 missfire no 6 cyl,only does this intermittently,have replace no6 spark plugs leads and coil,makes no difference,have put a launch crecorder in the di...
December 06, 2009
2001 Lexus IS300 3.0L Misfire VIN: JTHBD18211
P0306: Cylinder 6 Misfire Detected. Hello technicians, I had a customer bring a car to me for a smog check. After the smog check, the engine light failed, but the emission passed. In test 15 mph, the HC MEAS was 0. CO % MEAS was O.00. NO MEAS was 56ppm. In test 25 mph, HC MEAS was 0. CO was 0.00...
December 10, 2009
1999 Mercedes-Benz C280 2.8L Misfire VIN: WDBHA29G4X
P0306: testing and results. Been a Member since 1994.Rarely ask for Help. This is a hair Puller! Compression,Fuel Pressure, Engine in good Shape Car runs on 6 Cylinders, It will then start to miss fire on cylinders 4 5 & 6.Will Sit and Idle all day only happens under a load. The comp...
December 11, 2009
2002 GMC Sierra 2500 HD 6.6L Surge, Misfire, MIL Lamp on VIN: 1GTHK23172
P0306: Cylinder 6 Misfire Detected. Hello, to all this duromax starts missing when it hits 56c cyl bal for #6 goes to =15.0 1.86ml sec. also noticed #5 at =5.5 .93ml sec. Im about to pull the drivers valve cover and inspec the lines and fitting for leaks what else should I look for , shy of repl...
December 15, 2009
2004 Acura TL 3.2L Misfire, MIL Lamp on VIN: 19UUA66274
P0306: Cylinder 6 Misfire Detected. ... checked valves and exhuasts were tight, adjusted valves and smooth idle now, but on heavy acceleration runs great but when you let off gas and resume cruise speed it will misfire and cel flashes with above codes. have tried replacing egr valve to no avail ...
December 18, 2009
2004 Acura TL 3.2L Misfire, MIL Lamp on VIN: 19UUA66274
P0306: Cylinder 6 Misfire Detected. ... checked valves and exhuasts were tight, adjusted valves and smooth idle now, but on heavy acceleration runs great but when you let off gas and resume cruise speed it will misfire and cel flashes with above codes. have tried replacing egr valve to no avail ...
December 18, 2009
2003 GMC Envoy XL SLE 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKES16S63
P0306: Cylinder 6 Misfire Detected. ... engine light on with a p0306. At first customer said he wanted a tune up but realized that the misfire should be checked first. I swapped coils and plugs and miss remained on #6. Put a vacuum gauge on it and had a nice steady 20#s. We decided to put a set ...
December 18, 2009
2003 GMC Envoy XL SLE 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKES16S63
P0306: Cylinder 6 Misfire Detected. ... engine light on with a p0306. At first customer said he wanted a tune up but realized that the misfire should be checked first. I swapped coils and plugs and miss remained on #6. Put a vacuum gauge on it and had a nice steady 20#s. We decided to put a set ...
December 21, 2009
1998 Chrysler Sebring JXi 2.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 3C3EL55H3W
P0306: Cylinder 6 Misfire Detected. I was given car after Apprentice Tech did a Tuneup ( plugs and wires) to fix a misfire. Car has been here two weeks. I initially checked fuel pressure and found no problem it was when I tested and founf that the coil could not produce enough spark to jump a HE...
December 28, 2009
2002 Saturn Vue 3.0L Misfire, MIL Lamp on VIN: 5GZCZ63B42
P0306: Cylinder 6 Misfire Detected. Found timing belt one tooth off on bk 1 and wrong spark plugs installed. Reset timing belt and installed correct sp plugs misfire still present under load cyl #2-4-6. Ive checked for vacum leaks w/smoke machine and fuel. Ran compresion ckecks cold and hot chec...
December 29, 2009
1998 Toyota T100 3.4L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JT4TN14D4W
P0306: Misfire cylinder 6. Have this truck here for the first time. It looks like someone has put on two new oxygen sensors. It runs smooth for about 5 seconds after you start it. It immediately starts to stumble very badly and then dies. I thought maybe the cat was plugged. I put a pre...
December 29, 2009
1998 Chrysler Concorde LXi 3.2L Misfire VIN: 2C3HD46J6W
P0306: Cylinder 6 Misfire Detected. ... its my own car!P0306 sets (not flashing)when cold only, there is a slight rough idle cold,misfire counter shows #6 cyl counting up to approx 250 then back to 0 then back up,100-200 rpm off idle the mis is gone,i have swaped plugs and coils,replaced the inj...
December 02, 2009
2000 Mercedes-Benz ML320 3.2L Misfire VIN: WDC1631132
P0306: missfire no 6 cyl.inder. ... approx 80kph up hill when he backs off the accelerator he can feel a miss in engine,this leaves code p0306 missfire no 6 cyl,only does this intermittently,have replace no6 spark plugs leads and coil,makes no difference,have put a launch crecorder in the di...
December 06, 2009
2001 Lexus IS300 3.0L Misfire VIN: JTHBD18211
P0306: Cylinder 6 Misfire Detected. Hello technicians, I had a customer bring a car to me for a smog check. After the smog check, the engine light failed, but the emission passed. In test 15 mph, the HC MEAS was 0. CO % MEAS was O.00. NO MEAS was 56ppm. In test 25 mph, HC MEAS was 0. CO was 0.00...
December 10, 2009
1999 Mercedes-Benz C280 2.8L Misfire VIN: WDBHA29G4X
P0306: testing and results. Been a Member since 1994.Rarely ask for Help. This is a hair Puller! Compression,Fuel Pressure, Engine in good Shape Car runs on 6 Cylinders, It will then start to miss fire on cylinders 4 5 & 6.Will Sit and Idle all day only happens under a load. The comp...
December 11, 2009
2002 GMC Sierra 2500 HD 6.6L Surge, Misfire, MIL Lamp on VIN: 1GTHK23172
P0306: Cylinder 6 Misfire Detected. Hello, to all this duromax starts missing when it hits 56c cyl bal for #6 goes to =15.0 1.86ml sec. also noticed #5 at =5.5 .93ml sec. Im about to pull the drivers valve cover and inspec the lines and fitting for leaks what else should I look for , shy of repl...
December 15, 2009
2004 Acura TL 3.2L Misfire, MIL Lamp on VIN: 19UUA66274
P0306: Cylinder 6 Misfire Detected. ... checked valves and exhuasts were tight, adjusted valves and smooth idle now, but on heavy acceleration runs great but when you let off gas and resume cruise speed it will misfire and cel flashes with above codes. have tried replacing egr valve to no avail ...
December 18, 2009
2004 Acura TL 3.2L Misfire, MIL Lamp on VIN: 19UUA66274
P0306: Cylinder 6 Misfire Detected. ... checked valves and exhuasts were tight, adjusted valves and smooth idle now, but on heavy acceleration runs great but when you let off gas and resume cruise speed it will misfire and cel flashes with above codes. have tried replacing egr valve to no avail ...
December 18, 2009
2003 GMC Envoy XL SLE 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKES16S63
P0306: Cylinder 6 Misfire Detected. ... engine light on with a p0306. At first customer said he wanted a tune up but realized that the misfire should be checked first. I swapped coils and plugs and miss remained on #6. Put a vacuum gauge on it and had a nice steady 20#s. We decided to put a set ...
December 18, 2009
2003 GMC Envoy XL SLE 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKES16S63
P0306: Cylinder 6 Misfire Detected. ... engine light on with a p0306. At first customer said he wanted a tune up but realized that the misfire should be checked first. I swapped coils and plugs and miss remained on #6. Put a vacuum gauge on it and had a nice steady 20#s. We decided to put a set ...
December 21, 2009
1998 Chrysler Sebring JXi 2.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 3C3EL55H3W
P0306: Cylinder 6 Misfire Detected. I was given car after Apprentice Tech did a Tuneup ( plugs and wires) to fix a misfire. Car has been here two weeks. I initially checked fuel pressure and found no problem it was when I tested and founf that the coil could not produce enough spark to jump a HE...
December 28, 2009
2002 Saturn Vue 3.0L Misfire, MIL Lamp on VIN: 5GZCZ63B42
P0306: Cylinder 6 Misfire Detected. Found timing belt one tooth off on bk 1 and wrong spark plugs installed. Reset timing belt and installed correct sp plugs misfire still present under load cyl #2-4-6. Ive checked for vacum leaks w/smoke machine and fuel. Ran compresion ckecks cold and hot chec...
December 29, 2009
1998 Toyota T100 3.4L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JT4TN14D4W
P0306: Misfire cylinder 6. Have this truck here for the first time. It looks like someone has put on two new oxygen sensors. It runs smooth for about 5 seconds after you start it. It immediately starts to stumble very badly and then dies. I thought maybe the cat was plugged. I put a pre...
December 29, 2009