Archive For The “10w40.com” Category

Battery Drain Issues, Diagnosis

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Battery Drain Issues, Diagnosis

Persistent battery drains are a serious annoyance for car owners, but are particularly difficult (and tedious) for a mechanic to locate and repair. Quite often the drain will be in an inaccessible place, there will be more than one drain source, or the issue just never seems to resolve. Small, parasitic drains are the most…

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How Much Fuel? Faulty Fuel Gauge Sending Units

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How Much Fuel? Faulty Fuel Gauge Sending Units

Some vehicles, especially as they get older, will register a full tank of fuel and then either “stick” there and show no consumption over time or will suddenly drop to empty (or near empty) once a couple of gallons have been burned off. A few will just show a vaugely correct reading of the amount…

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Pulling Codes and Clearing the Computer Without a Reader

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Pulling Codes and Clearing the Computer Without a Reader

There are a lot of things you’ll need to do to repair a vehicle. One of those will be pulling OBD II codes from the computer as part of the diagnosis process and clearing that computer in order to see if new codes come up. Sometimes, a reader isn’t handy. For those times, there are…

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P0115 and Coolant Temp Sensor Diagnosis

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P0115 and Coolant Temp Sensor Diagnosis

When you receive an error code on your car reading a P0115, your first reaction is likely to quickly replace that coolant sensor. That may fix the problem, but making a guess like that is also likely to cost you the part and time spent replacing it without a fix. Read about it at 10w40.com.

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Basic Starter Problem Diagnosis, Repair

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Basic Starter Problem Diagnosis, Repair

Recently in our forums, user maryjean posted an issue regarding her vehicle’s starting system. Most starting issues are caused by a defecting starting circuit or starter motor. The first thing to check in maryjean’s case is the starting circuit, starting at the battery terminals. Her vehicle’s symptoms indicate that it’s likely that her battery cables…

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When and How To Replace Struts

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When and How To Replace Struts

Any vehicle equipped with them and lasting beyond its expected factory lifespan will require strut replacement. This is most modern vehicles today, especially sedans, hatchbacks, and minivans. Many crossover-SUVs also have struts instead of traditional leaf or coil springs. Read about it at 10w40.com.

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Resetting the AIC with IAR on most vehicles with erratic idle

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Resetting the AIC with IAR on most vehicles with erratic idle

On most vehicles with a fuel injected engine that is showing symptoms of erratic idle, a reset of the air idler control (AIC) can remedy the situation. Or at least help rule out some issues for diagnostic purposes. Read about it at 10w40.com.

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