OBD II Code Reader/ EOBD Scanner Question??
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OBD II Code Reader/ EOBD Scanner Question??
I am new to gas engines, drove most older diesels. But my question is does a OBD II Code Reader/ EOBD Scanner tell me if there is any problems on a 2004-2009 Ford V8?? Is the Harbor Freight Scanner CAN OBD II Code Reader/ EOBD Scanner - Diagnostics - Automotive & Motorcycle
Will the OBD II Code Reader/ EOBD Scanner tell me if the tranny is goin out, the pistons are misfiring, the head gasket warn, coolant or any leaks like oil, or any other engine problems???
Will the OBD II Code Reader/ EOBD Scanner tell me if the tranny is goin out, the pistons are misfiring, the head gasket warn, coolant or any leaks like oil, or any other engine problems???
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Joined: Sep 2000
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From: Stephensville WI
Yes, no, maybe and sometimes. It depends on what code is issued and how it is interpreted. It isn't all cut and dry.
A code reader will show you an error. It might say you have a misfire in 2 adjacent cylinders, but will not tell you a head gasket failed. It isn't cut and dry. You may see a P0306 code (Cylinder 6 Misfire Detected) but now what caused it? COP? Spark plug? Boot? Vacuum leak?
The code reader you linked might be OK, but I do not see anything in the specifications about reading pending codes. With these engines it is important to read the pending codes. It takes many many misfires to light the CEL and issue an error code, but the misfires will be on pending codes. (Yes, this is very common).
A code reader will show you an error. It might say you have a misfire in 2 adjacent cylinders, but will not tell you a head gasket failed. It isn't cut and dry. You may see a P0306 code (Cylinder 6 Misfire Detected) but now what caused it? COP? Spark plug? Boot? Vacuum leak?
The code reader you linked might be OK, but I do not see anything in the specifications about reading pending codes. With these engines it is important to read the pending codes. It takes many many misfires to light the CEL and issue an error code, but the misfires will be on pending codes. (Yes, this is very common).
Thread Starter
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Freshman User
Joined: Sep 2009
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A code reader will show you an error. It might say you have a misfire in 2 adjacent cylinders, but will not tell you a head gasket failed. It isn't cut and dry. You may see a P0306 code (Cylinder 6 Misfire Detected) but now what caused it? COP? Spark plug? Boot? Vacuum leak?
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
A vacuum leak can be any one of several error codes, depending on where it is and the severity.
$200 seems very steep for a vehicle inspection. Call a few repair shops and see what they charge for a pre-sale inspection.
$200 seems very steep for a vehicle inspection. Call a few repair shops and see what they charge for a pre-sale inspection.
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