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P-0304 and P-0306 Misfire Codes in 2004 Ford Ranger: Is It a Production Issue or Fleet-Specific Failure?
I work for a company that previously operated a fleet primarily consisting of 2002–2006 Ford Rangers. Over the past several years, we've experienced recurring misfire codes P-03...
2004 ford ranger | P03041999 Pontiac Bonneville Error Code P0304: How to Diagnose and Fix Ignition System Issues
NGK is an OEM supplier for many manufacturers, but that doesn't mean all aftermarket parts are equally reliable. While dealerships have never sold me faulty spark plugs in the p...
1999 Pontiac Bonneville | P0304P-0300 and P-0304 Ford Explorer
Hi all! I am hoping someone might have some insight/specific experience with my problem... I have a 1999 Ford Explorer 5.0L AWD with 129K miles. I was at a red light last week w...
Ford Explorer | P03001999 Pontiac Bonneville, Error Code P0304
Hey Guys, I am new to the forums, but have seen some really great information being passed along, and thought ya'll could help me out too! I have a 1999 Pontiac Bonneville with ...
1999 Pontiac Bonneville | P0304P0304 Misfire Code Repeatedly Appears on 1997 Chevrolet Lumina 3.1L Engine
I recently purchased a 1997 Chevrolet Lumina equipped with a 3.1L engine. The vehicle exhibits a rough idle and poor performance at lower RPMs. A persistent P0304 diagnostic tro...
1997 Lumina | P0304P0304 Fault on 1997 Toyota Camry 4-Cylinder: Injector No Voltage, PCM or Wiring Issue?
Hello! I'm experiencing a persistent P0304 diagnostic code on my 1997 Toyota Camry with a 4-cylinder engine. The code indicates a misfire in cylinder #4. I've already replaced t...
97 Camry 4 Cylinder | P030499 Honda Odyssey P0304, P0305, P1399
Door rates at a dealer often tend to be higher but again there are exceptions to the rule! I've seen independants higher then dealers and often they work on a two or three leve...
99 Honda Odyssey | P03042003 Ford Expedition 5.4L Misfire P0300 with Additional OBD II Codes - How to Diagnose and Fix
I own a 2003 Ford Expedition 5.4L 2WD with 93,000 miles. The vehicle was loaned to a church group and driven during a severe storm on highway conditions. After the drive, the OB...
03 Expedition 5.4l | P03001997 Honda Civic P0302/P0303/P0304 and P1300/P1399 Misfire: Ignition System Diagnosis & Repair Options
Hello everyone, I own a 1997 Honda Civic with 61,000 miles. Recently, after completing a comprehensive 60,000-mile maintenance service, the Check Engine Light (CEL) came on. I ...
97 Civic | P03021997 Honda Accord VTEC with 2000 Honda Accord VTEC p0304
I just swapped a 2000 honda accord engine into a 1997 Honda accord. The engine that was originally in the car was an f22b1: 2156cc 8.8 to 1 compression ratio 85mm bore 95mm stro...
1997 Honda Accord VTEC | P0304Ford Fiesta 2004 1.4 Manual - P0103 and P0304 Fault Codes: Misfire and TMAP Sensor Issues
My 2004 Ford Fiesta 1.4 manual, with 40,000 miles, is experiencing a very stuttering engine. The onboard diagnostics show fault code P0103 and a freeze frame indicating P0304 (c...
Ford Fiesta | P01031999 VW Passat P0304 Code: Diagnosis After Replacing Plugs and Wires
I own a 1999 Volkswagen Passat that has recently triggered a P0304 diagnostic code. I replaced the spark plugs and ignition wires and reset the system, but within minutes of dri...
vw passat | P0304P0300, P0302, P0304 Diagnosis - 2001 Jeep Cherokee 4.0L Engine Misfire & Fuel Trim Issues
Hi, I recently purchased a code reader to diagnose the MIL light and discovered DTC codes P0300, P0302, and P0304 on my 2001 Jeep Cherokee with a 4.0L engine. I also have an eva...
Jeep 4.0L Cherokee | P0300P0304 Fault on 2000 Nissan Altima SE: Can a Vacuum Leak Be Pinpointed and Is $75-1000 Repair Cost Reasonable?
I've been experiencing the 'Service Engine Soon' warning light for several days, which my Nissan dealer has diagnosed as P0304. They believe this is caused by a vacuum leak from...
Nissan Altima SE 2000 | P0304'01 Durango 4.7L - P0304 cylinder misfire
not much, like a teaspoon at a time and let it sit overnight or longer if u can, then with the plugs out bump it over till it stops spraying fluid and carbon from the spark p...
Durango | P0304P0304 and P0430 Misfire and Catalytic Converter Issue on 1996 Ford Taurus
I'm experiencing an intermittent misfire in cylinder #4, followed by a Bank 2 catalytic converter inefficiency (code P0430). The check engine light blinks initially, then stays ...
1996 Taurus | P0304'01 Durango 4.7L - P0304 cylinder misfire
This is the first time for me to use any forum for help; but as I have been reading they seem very helpful. I have a 2001 Durango, 4.7L with a P0304 code. I know its #4 cylind...
Durango | P0304P0304 Error in 1999 Honda CR-V: Causes, Fixes, and Valve Adjustment Advice
The check engine light is on and the vehicle has triggered error code P0304. I've already replaced the spark plugs, ignition wires, distributor cap, rotor, and fuel filter. Afte...
1999 Honda CR-V | P0304