Resetting the Check Engine Light.
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Freshman User
Joined: Sep 2012
Posts: 27
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From: Sunset Hills, MO.
Resetting the Check Engine Light.
My 1998 Explorer with 120,000 mile on it. The check light just came on. I have had several auto part stores plug in the scan tool and there were no error codes
I'm looking for the reset button location. I am also wondering should there be something missed by the scan tools, will the light activate should there be a real problem.
Thanks,
Raider1kilo
I'm looking for the reset button location. I am also wondering should there be something missed by the scan tools, will the light activate should there be a real problem.
Thanks,
Raider1kilo
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Joined: Jun 2009
Posts: 4,814
Likes: 83
From: Cedar Rapids, IA
Were the stores having difficulty getting the scan tool to connect, or were the tools reporting that there are no diagnostic codes after a successful scan?
As mentioned above, there is no generic reset button. If the system causing the Check Engine Light (CEL) to come on stops reporting an issue, the light will go out after several drive cycles with no instance of the issue. But the CEL will not illuminate for no reason. The scan tools used by just about every parts store will only read powertrain diagnostic codes. There can be non-powertrain codes that cause the CEL to illuminate but cannot be accessed by a standard scan tool. For those, you'll need to find a professional scan tool.
-Rod
As mentioned above, there is no generic reset button. If the system causing the Check Engine Light (CEL) to come on stops reporting an issue, the light will go out after several drive cycles with no instance of the issue. But the CEL will not illuminate for no reason. The scan tools used by just about every parts store will only read powertrain diagnostic codes. There can be non-powertrain codes that cause the CEL to illuminate but cannot be accessed by a standard scan tool. For those, you'll need to find a professional scan tool.
-Rod
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Freshman User
Joined: Sep 2012
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From: Sunset Hills, MO.
Resetting the CEL
I took the Explorer to a shop and was told there is are codes,.
P1309 Misfire monitor and a P0340, Camshaft Position Sensor A Circuit
Bank 1 or Single Sensor.
Is this a major job, I am good with auto repairs, but is this something I should take to a shop or dealer ?
Thanks,
Raider1kilo
P1309 Misfire monitor and a P0340, Camshaft Position Sensor A Circuit
Bank 1 or Single Sensor.
Is this a major job, I am good with auto repairs, but is this something I should take to a shop or dealer ?
Thanks,
Raider1kilo
Senior User
Joined: Dec 2007
Posts: 139
Likes: 0
If you have SOHC 4.0, remove sensor at the front of left valve cover, clean off the sensor and see if that makes a change. Mine was dirty, oil, etc. and showing a CEL, clean it, then no CEL.
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Camshaft Position Sensor
Camshaft Position Sensor | 1998 Ford Explorer 4WD 6 Cylinders E 4.0L EFI SOHC | AutoZone.com
Camshaft Position Sensor | 1998 Ford Explorer 4WD 6 Cylinders E 4.0L EFI SOHC | AutoZone.com
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Freshman User
Joined: Sep 2012
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From: Sunset Hills, MO.
Thanks to all that replied. I wound up taking it to a local shop and the owner has the same Explorer. Turned there were two faulty sensors, With the oil change and tire rotation the bill was $199.90. Plus he washed all the salt, dirt and cleaned the interior.
I think I'll be using him again.
I think I'll be using him again.
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