Traditional gasoline car fault

P0303 Fault in 1998 Dodge Ram 1500 5.9L 4x4: Diagnosis and Repair Steps

I recently replaced the spark plugs, wires, distributor cap, and the front O2 sensor (the rear one was replaced a few years ago). The P0303 misfire code started appearing only a...

98 Dodge Ram 1500 5.9 4x4 | P0303

2002 Chevrolet S10 V6 P0303 Misfire: Causes, Diagnosis & Solutions for Long Incline Driving

My 2002 Chevrolet S10 with a 5.0L V6 engine and 110,000 miles is consistently showing fault code P0303 when driving uphill at around 50 mph and 2600 RPM. The check engine light ...

2002 Chev S10 V6 | P0303

2008 Honda Accord with codes P0300, P0303 and P0306

Hello, cel came on a few days ago. Had the codes pulled and came back with those three. Engine running rough and also stumbles when accelerating from a stop nearly stalling. The...

2008 Honda Accord | P0300

2006 PT Cruiser P0303 Misfire Cylinder 3 - Persistent Code After Multiple Repairs

2006 PT Cruiser Touring 2.4L 4-cylinder (non-turbo) | 100,000 miles I'm experiencing a persistent P0303 misfire on cylinder 3 that continues despite extensive repairs. I've al...

2006 PT Cruiser | P0303

99 VW Beetle 2.0L Manual Transmission with Codes P0300, P0302, P0303 and P0303PD - Engine Misfire Diagnosis

Hello everyone, I'm new to this forum. My wife has a 1999 VW Beetle 2.0L with manual transmission, air conditioning, and over 158,000 miles. The engine was rebuilt at approximat...

99 vw beetle | P0300

2004 Pontiac Grand Prix GT P0303 Misfire: Diagnosis and Fixes for Cylinder 3

My 2004 Pontiac Grand Prix GT with a 3800 V6 engine is showing a P0303 diagnostic trouble code, indicating a misfire in cylinder #3. The symptoms include hesitation when releasi...

2004 Grand Prix GT | P0303

2010 Nissan Versa P0303 Misfire: Is Engine Replacement Worth It or Just Spark Plug/Coil Fix?

I'm a complete car novice, so please forgive any technical mistakes—I'm just trying to figure out what's wrong with my 2010 Nissan Versa. Starting Monday, when I left for work,...

2010 Nissan Versa | P0303

2000 Chevy 2.2L OHV Engine PO303 Code: No Compression in Cylinder #3, Possible Blown Head Gasket?

My son was driving the 2000 Chevrolet 2.2L OHV engine when he reported a popping sound during downshifting from 5th to 4th gear. The vehicle would stall, spit fuel, and fail to ...

2000 Chevy 2.2 OHV | P0303

2000 Daewoo Leganza 2.2L Running with PO303 Code and Backfiring Through Intake - Need Help

I'm looking for help diagnosing a persistent issue on my 2000 Daewoo Leganza SE with a 2.2L engine. The car runs but consistently backfires through the intake manifold and sets ...

Daewoo Leganza | P0303

2000 Volvo V40 P0101 P0303 P0234 P0172 - Difficulty Shifting Up from Stop

I recently discovered this forum while trying to understand the following diagnostic trouble codes on my wife's 2000 Volvo V40 with a 1.9L turbo engine and automatic transmissio...

2000 Volvo V40 | P0101

2002 Ford Escape P0303 Misfire: Diagnosis and Fix for Cylinder #3

I own a 2002 Ford Escape with a 4-cylinder, 5-speed manual transmission. The Check Engine light activated, and the diagnostic code read P0303 — indicating a misfire in cylinder ...

2002 Ford Escape | P0303

2005 Ford Five Hundred Multiple Misfire Codes: P0300, P0303, P0306, P0354, P0355, P0356 and P2544 - Troubleshooting Guide

My 2005 Ford Five Hundred with a 6-speed automatic transmission and 3.0 L 6-cylinder engine is showing multiple misfire codes: P0300, P0303, P0306, P0354, P0-355, and P0356. The...

2005 Ford Five Hundred | P0300

2002 Ford F150 4.6L 'W' V8 P0303 and P0316 Fault Code Diagnosis at 130,000 Miles

Hi, I recently purchased a 2002 Ford F15-0 XLT with the 4.6L 'W' engine (V8). It ran smoothly for approximately 2,000 miles before suddenly becoming rough and triggering the 'Se...

2002 f150 4.6l | P0303

2001 Jeep Wrangler 4.0L 6-Cylinder P0303 Code Only When Engine is Hot - Fix with Exhaust Manifold Shield

I'm seeking help with a recurring issue on my 2001 Jeep Wrangler 4.0L 6-cylinder manual transmission model, currently at around 71,000 miles. The vehicle consistently throws Dia...

Wrangler | P0303

1998 Chevrolet Lumina P0303 Fault Code: Diagnosis and Repair Guidance

I've performed an ignition test and compression test on cylinder #3 (cylinder 185), and have replaced the spark plugs. Currently, cylinder #3 appears wet, which is indicating a ...

1998 Lumina | P0303

1999 Ford Ranger P0303 Cylinder 3 Misfire: Diagnosis and Solutions

I own a 1999 Ford Ranger with a detected cylinder 3 misfire (OBD2 code P0303). I recently completed a tune-up, and took the vehicle to an auto parts store to have the coil packs...

1999 ford ranger | P0303

P0303 Misfire Diagnosis on 2002 PT Cruiser with Low Cylinder 3 Compression

My 2002 PT Cruiser, with 148,000 miles, suddenly started running rough at idle. The next day, the engine lost power completely and the check engine light illuminated. A diagnost...

2002 PT Cruiser | P0303