Car Repair World

  Engine Stalling Engine Stalls While Stop Ford/Mercury's Engine Stalling On Engagement/Stopping Problem Mostly Noticed on  2005-’08 Ford Escape and Mercury Mariner ­vehicles equipped with a CD4E automatic transaxle and built from Aug. 1, 2004 through Feb. 15, 2007, may exhibit an engine stall when coming to a stop or when engaging the transmission into drive or ­reverse.  This condition may be intermittent and often occurs after extended drives. There may be no diagnostic trouble codes stored. This may be caused by internal wear in the torque converter, which prevents it from unlocking. How To Repair And Solve This Problem: 1. Inspect and repair all non-transaxle codes. 2. Monitor the PIDs (parameter identification) for TC_SLIPACT as the stall is occurring. a. If the slip is greater than 20 rpm, the stalling is not transaxle related. Repair following PC/ED procedures for engine stalling condition. b. If TC_SLIPACT is less than 20 rpm with the transmission in park or neut...

How Does  Car Thermostat W ork Car thermostat function: The automotive Car Thermostat is a temperature controlled on and off valve. Any liquid-cooled car engine has a small device called the thermostat.Car thermostat sits between the engine and the radiator.When the temperature rises to a predetermined temperature, the thermostat opens up to allow the engine coolant to flow through the cylinder block and the radiator.  This flow is crucial to maintain optimum operating temperature for fuel efficiency, enhanced drive ability, and engine protection.You can say the thermostat reduces engine wear, deposits and emissions. See  the image shows how thermostat functions when engine is cold and when engine is hot Car Thermostat controls the engine cooling system.The coolant flow is reduced when the engine is cold, and the flow is increased when the engine is hot. Contrary to popular opinion, operating the vehicle without the thermostat doesn't make the...

Engine Control Unit Repair Pros Modern cars can have over 80 separate computers scattered around the car, but one of the big ones is the engine control unit (ECU). Also known as the engine control module (ECM), this controls most of the key engine functions, including the fuel/air mixture, spark timing, and more. From the outside, an ECU looks like a box due to the housing that protects the circuitboards. If you have a certain amount of mechanical aptitude, it can seem like all you have to do to repair it, replace it, or tune it is to unplug it and plug a new one in. But this can create some big problems. Here are some reasons why you should leave this job to the pros. They Know What to Adjust Whether you need a complete replacement or just want a chip tuning module added, you need to check all of the variables. Even small changes in the settings or software can have big consequences, including causing the whole engine to break down. Even if the computer is exact...

The Pros and Cons of Engine Control Module Tuning The engine control module, also known as the engine control unit, is the computer that controls key functions of your engine. By hooking a chip tuner or performance chip into the system, the parameters from the computer can be altered. This can change key factors in the engine, such as the fuel/air ratio or the spark timing. Here are a few pros and cons of ECU tuning. Pros More Power: Vehicle manufacturers tend to be conservative with the settings on their ECM to account for changes in elevation, temperature, fuel, and maintenance schedules. Chip tuning can change the settings to get more power from the engine, adding a good chunk of HP to the car. More Efficiency: The main goal of chip tuning for a long time was power, but today’s higher gas prices and environmental goals have changed that. Modern chip tuning can help your engine run more efficiently, and can give boosts of 5-10 mpg. Affordable Upgrades...

Engine Splash Shield Replacement Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Secure the vehicle on a level surface, making sure the vehicle will not roll or lean when jacked up. 2 Use a jack to raise the vehicle. Photo may not be specific to your vehicle 3 Secure the vehicle with jack stands on both sides for safety before starting any work. Do not rely on the jack to hold the vehicle up while working. 4 Locate the engine splash shield. Photo may not be specific to your vehicle 5 Inspect the engine splash shield for damage. 6 Remove the old, damaged splash shield. Photo may not be specific to your vehicle 7 Inspect mounting locations and hardware for damage, replace as needed. 8 Install new engine splash shield. 9 Ensure engine splash shield is secure. 10 Lower vehicle and road test to ve...

Engine won't start. Dash lights flash rapidly when key turned. Drove home from work like normal. Parked in garage. About an hour later went to start car. Wouldn't turn over, dash lights went dark. Turned ignition off and on, dash lights then flashed rapidly. Engine will not even turn over. Tried disconnecting battery from car several times. Checked battery voltage (just hair under 12 volts, which is more than enough to start). Something is preventing the car from starting...and voltage seems to die off for car electronics with use (cannot turn headlights on, even with key). Strangely enough, battery has voltage. The battery says 12 volts but may be dropping to 4 or 5 under a load...i would suggest jumpstarting the car and see what happens.the battery should read in the high 12 volts and not less than 9.5 under cranking. the dash lights go out on your car when starting,and the alarm will go off ,and disable the ignition if the voltage is too low in cranking the car beca...

1999 Chevy cavalier... overheating especially when idle. Air con works while car moves but cutsoff when at a stop more like blows hot air. I think it's my fan, but could it be the thermostat? My radiator fan does not cut on. With the engine at idle, trans in park, turn on the air conditioner, open the hood behind (toward the rear of the car) the radiator there is a fan, it should be running if not then it could be a fuse, a bad relay or failed fan motor. You will have to diagnosis it. Get your fan working first but the thermostat could be a problem to seeing you may have overheated the engine. Car Repair World Troubleshoot All types Of Car Problem With proper Solutions http://carrepairworld.blogspot.com/2015/03/how-to-repair-car-problem.html   Know Exactly How Each And Every Part In Your Car Works http://carrepairworld.blogspot.com/2015/04/how-does-it-work.html   Troubleshoot Car OBD Codes.Know Exactly What Each Code Means? http://carrepairworld.blogspot.c...

Piston Ring Replacement Car Engine Piston Ring Replacing Procedure Helpful Information If new piston rings are installed without machine work it will make the situation worse due to the oblong wear pattern the cylinder walls produced during normal long term operations. In other words, new piston rings are perfectly round with no wear, if they are installed into an oval shaped cylinder (worn) the ring operation failure will be amplified. An engine's piston rings are used to seal the piston to the cylinder wall during the compression stroke. When a combustion event occurs these rings are forced against the engine block cylinder walls to help contain the energy that is released. Most engine pistons contain three separate rings that perform unique tasks. The first ring or top ring is the main combustion ring that takes the brunt of the force as the piston is thrust downward. The second combustion ring acts as an overflow or secondary confinement ring that aids in the service ...

Compression Test Car Engine Compression Test Helpful Information An engine depends on equal compression readings to run smoothly. A compression test of all cylinders is needed to check the engine for wear and internal damage. Occasionally, a timing belt or chain will jump "out of time" causing the camshaft to lose correlation with the crankshaft, and therefore causing low compression across all cylinders. The best method for testing this condition is to remove the timing belt/chain cover and inspect timing marks. These problems if left un-repaired can cause more extensive engine damage and even catastrophic failure. There are two types of gauge styles, one threads into the spark plug hole which is more accurate. The other style of gauge is constructed with a rubber plug that is designed to be pressed against the spark plug hole, this style of gauge is difficult to use and may not be accurate. Optional compression testing methods include an amperage load monitor fo...