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It could be all manner of things. Your truck will give you a code by way of blinking lights in the dash. You jump e1 to te1 in the diagnostics port. You will have a series of blinking lights with a pause between numbers. Example-blinks once then blinks 7 times right after that its a Code 17 look it up in an fsm it will tell you what the code means.
What else can I help you with?
Should the check engine light come on if an O2 sensor is bad?
The oxygen sensor is one of many things that could turn the check engine light on.The oxygen sensor is one of many things that could turn the check engine light on.
What does it mean when your check engine light comes on it reads heated oxygen sensor bank?
There is a failure in the oxygen sensor heater.
Does the oxygen sensor make the check engine light come on?
Yes
What happens to a 1999 Honda Accord when the oxygen sensor goes bad?
When the oxygen sensor goes bad, the check engine light goes on.
Will an bad oxygen sensor make the engine check light come on?
yes
How do you check the oxygen sensor on 97 Dodge 318?
Oxygen sensors either work or they don't. If they don't, the check engine light will come on and indicate an oxygen sensor problem. If they're fine, none of that will happen.
What sensors cause engine to miss when pulling a hill?
Oxygen Sensor. Or the Knock Sensor. Or you could check the plugs for faults.
What happens if the oxygen sensor goes bad?
The check engine light will illuminate. The code(s) will direct you to the faulty sensor.
How do you fix an oxygen sensor?
Unfortunately there is no fixing an O2 sensor. If the "check engine" light is on due to an O2 sensor, it can only be remedied by replacing the bad sensor.
Would the check engine light come on if the oxygen two sensor needed replacement?
The O2 sensor is one of many things that can turn on the check engine light. You need to have it checked for codes.
Can the oxygen sensor cause the car not to start?
no it can't. usually when the oxygen sensors are failing, u get your check engine light on.
How do turn off check engine light on 1998 Toyota Sienna?
must be a oxygen sensor
