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 Loss When Car is Off - 2004 Ford Taurus SE
2004 Ford Taurus SE
The owner reports that their 2004 Ford Taurus SE loses all electrical power, including power locks and lights, when the vehicle is turned off. This is...
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2002 Mazda Protege5 Intermittent Starting Problem
2002 Mazda Protege5
The owner of a 2002 Mazda Protege5 reports intermittent starting issues. The vehicle sometimes makes an attempt to start when the key is turned, but i...
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2002 Saturn SL2 Acceleration Issues and SES Light
2002 Saturn SL2
The owner reports that their 2002 Saturn SL2, with approximately 160,000 miles, has lost acceleration power, only reaching about 20 mph before the Ser...
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4X4 Low Disengagement Issue Diagnosis
1998 Ford Expedition
The owner reports that their 1998 Ford Expedition 5.4L is locked in 4X4 Low. They have already attempted several recommendations, such as neutral-brak...
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2002 Honda CR-V Stalling During Left Turns
2002 Honda CR-V
The owner of a 2002 Honda CR-V reported that the vehicle stalled while making a left-hand turn onto their street, resulting in a loss of power and ste...
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Intermittent No-Start Condition in 2000 Ford Econoline
2000 Ford Econoline
The owner reports that their low mileage 2000 Ford Econoline van has suddenly stopped turning over after being turned off. It has been running well pr...
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2000 Dodge Caravan Won't Start, Relays Click
2000 Dodge Caravan
The owner reports that their 2000 Dodge Caravan won't start, despite the battery testing at a healthy 12.5 volts. The terminals and cables appear to b...
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BMW Won't Start - No Crank, Electrical Systems Functional
unknown BMW unknown
The vehicle was starting and running well but then began stalling and experiencing erratic RPMs for a few days. Restarting would temporarily resolve t...
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1987 Nissan Pathfinder TPS Voltage Issue Diagnosis
1987 Nissan Pathfinder
The owner of a 1987 Nissan Pathfinder reports a problem with the throttle position sensor (TPS) where the expected variable voltage output of 0.5 to 4...
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Mercedes C220 Won't Start, Security System Bypass Inquiry
1995 Mercedes C220
The owner of a 1995 Mercedes C220 reports that the ignition turns on, and the dashboard instruments light up, but the engine will not start. They have...
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Locating Air Compressor Relay on 2003 Lincoln Navigator
2003 Lincoln Navigator
The owner of a 2003 Lincoln Navigator is experiencing frustration trying to locate the air compressor relay. They looked behind the passenger headligh...
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Starter Relay Location for 2008 Dodge Avenger
2008 Dodge Avenger
The owner is trying to locate the starter relay for their 2008 Dodge Avenger. They believe that a conventional starter relay should exist but are havi...
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1989 GMC K1500 No Spark Diagnosis
1989 GMC K1500
The owner of a 1989 GMC K1500 reports that the vehicle has no spark. The issue arises while trying to start the engine, which fails to ignite. Previou...
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1998 Kia Injector Problem Diagnosis
1998 Kia Sephia
The owner reports their 1998 Kia Sephia runs fine when cold but stalls after about 10 minutes of warm-up at idle. It restarts immediately but dies wit...
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1984 Ford Bronco Starter and Solenoid Issues
1984 Ford Bronco
The owner reports that their 1984 Ford Bronco, which previously started fine, now has intermittent starting issues. It won't turn over but can be push...
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Suzuki Vitara No Spark Issue After Stalling
1995-2005 Suzuki Vitara
The owner reports that their 1995-2005 Suzuki Vitara with a 2.0L engine stalled while driving and has not started since. They confirmed that there is ...
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Intermittent Stalling Issue in 1997 Dodge Caravan
1997 Dodge Caravan
The owner reports that the 1997 Dodge Caravan runs well for a while but then behaves as if it has run out of fuel. To reset it, the owner disconnects ...
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1997 Pontiac Transport Starting Issues
1997 Pontiac Transport
The owner of a 1997 Pontiac Transport reports intermittent starting issues. The vehicle won't crank over despite having new battery and tested alterna...
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Page 29 of 47 - Showing automotive fault analysis cases