Engine System Fault Analysis Cases
Comprehensive collection of engine system fault analysis cases. Get detailed diagnostic solutions for starting issues, performance problems, ignition system faults, and cooling system failures.
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Power Steering Issue After Rack and Pinion Replacement
1996-1999 Chrysler Town and Country
The owner replaced the rack and pinion in their 1996 Chrysler Town and Country Van but is still experiencing power steering issues. The power steering...
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Eagle Vision Intermittent Starting Problem Diagnosis
1993 Eagle Vision
The owner reports an intermittent starting issue with their 1993 Eagle Vision (3.3L engine, approximately 97,000 miles). The engine sometimes fails to...
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Smoke from Engine Near Silver Component
1995 Geo Prizm
The owner of a 1995 Geo Prizm reports that the brake pedal is slowly sinking to the floor, prompting the addition of brake fluid, which has temporaril...
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2003 Ford F-150 EGR Valve and Lean Codes Diagnosis
2003 Ford F-150
The owner reports a 2003 Ford F-150 with a 4.6L V8 engine experiencing recurring P0171 and P0174 trouble codes. The engine idles roughly at normal tem...
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2000 Dodge Dakota Running Rough and Stalling Issues
2000 Dodge Dakota
The owner reports that their 2000 Dodge Dakota with a 4.7L engine and 192,000 km suddenly started running very roughly after a quick stop. They manage...
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2006 Cadillac CTS Running Rough Diagnosis
2006 Cadillac CTS
The owner reports that their 2006 Cadillac CTS is running rough at idle, particularly after driving for a while and stopping at traffic lights. The ve...
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1995 Honda Prelude White Smoke & Ticking Noise
1995 Honda Prelude
The owner reports that after replacing the head on a 1995 Honda Prelude H23A1 engine, there is white smoke mainly when the engine reaches operating te...
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1999 GMC Sonoma Engine Performance Issues
1999 GMC Sonoma
The vehicle owner describes ongoing performance issues with their 1999 GMC Sonoma. Despite visiting two different repair shops, the vehicle continues ...
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1999 Ford Ranger Engine Revving Intermittently
1999 Ford Ranger
The owner reports that their 1999 Ford Ranger's engine revs unexpectedly about 50% of the time when shifting or pressing the clutch to stop. They've r...
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1988 Subaru GL10 No Spark Diagnosis
1988 Subaru GL10
The owner reports that their 1988 Subaru GL10 wagon, equipped with an 1800cc OHV SPFI engine, initially ran fine but has recently experienced starting...
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Heater Issues in 2006 Chevy Aveo at Idle
2006 Chevrolet Aveo
The owner of a 2006 Chevy Aveo reports that the heater does not blow warm air when the car is idle, but it works properly while driving. The owner has...
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1995 Saturn SL1 Engine Stalling on Stop
1995 Saturn SL1
The owner reports that their 1995 Saturn SL1 experiences engine stalling when coming to a stop. The 'service engine soon' light has been on for a whil...
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1998 Ford Windstar Inspection Fail Diagnosis
1998 Ford Windstar
The owner took their 1998 Ford Windstar to a VIP inspection and received several trouble codes: P0455 (evap leak), P0430 (catalytic converter bank 2),...
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1996 Chevy Astro Fuel Distribution Issues
1996 Chevy Astro
The owner reports that the 1996 Chevy Astro van starts only after 12-20 bumps of the ignition switch and does not start with constant cranking. Once i...
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1995 BMW 525i Cranks but Won't Start After Head Replacement
1995 BMW 525i
The owner reported that after an overheating incident that caused the engine to shut down, they discovered a cracked head. Following the replacement o...
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Power Steering Pulley Removal and Leak Resolution
1995 Cadillac Seville
The vehicle owner described that they successfully removed the power steering pulley using a puller but encountered a leak from the tube connecting th...
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2005 Ford Ranger Engine Dies Intermittently
2005 Ford Ranger
The owner reports that the 2005 Ford Ranger engine dies while driving normally on the highway. There were no prior issues with the vehicle. The fuel t...
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2000 Plymouth Neon Won't Start Diagnosis
2000 Plymouth Neon
The owner reports that their 2000 Plymouth Neon won't start. They have checked for spark and fuel pressure but have not been able to identify the issu...
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