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What does ckeck engine light code 495 mean - 2002 GMC Envoy

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2003 ford explorer 4.0 no ckeck engine light working

What? YOiu mean your have error codes but the check engine light does not come on. Normal operation is no check engine light is on. When there is a sensor failure the engine "brain" detects a problem and set's error codes. And this "set" turns on the check engine usually with a red light. Other wise there is a problem with your engine's brain (ECU) or other names.

Apr 25, 2015 | 2003 Ford Explorer

1 Answer

Engine ckeck light turns on even running by octane.

engine lights are there to let you know that the parameters for safe engine / gear box operation have been exceeded and you need to check oil levels , coolant levels , drive belts and temperature range .. Run fault codes to detect which sensors raised the alarms.

Apr 19, 2014 | 2001 Toyota Corolla

1 Answer

Air intake

Code 110 means the signal the computer is getting from the intake air temp sensor is out of range. The sensor and wiring would need to be checked.

Jul 03, 2013 | 2000 Toyota Avalon

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What does check engine light code 495 and 1481 mean ??

These two codes are related to the fan clutch assembly. It is time to replace the clutch assembly.

Nov 04, 2012 | 2002 GMC Envoy

2 Answers

My ckeck engine light just came on

If you have a 1997 Wrangler, turn the key on and off three times in five seconds (without cranking the engine). Error codes should begin to flash in the odometer, and the check engine light will flash out the numbers (like Morse code). Write the numbers down, excluding the number 55 which means "end of codes". Finally, google "TJ error codes" and see whats wrong with your truck.

The most common are battery disconnect and upstream/downstream O2 sensor. If battery disconnect comes up, it means that you disconnected the battery for some reason and will go away after 40 warm-up cycles. For O2 sensors, you will have to get them replaced by your local mechanic.

Apr 22, 2010 | 1997 Jeep Wrangler

1 Answer

What needs to be done when the check engine light comes on and there is nothing wrong. And do I turn it off?

if the ckeck engine light came there should a code get the tool to check the code

Feb 11, 2010 | 2000 Toyota Camry

1 Answer


Go to AutoZone for a free diagnostic, and they can read the codes for you.

Feb 03, 2010 | 1996 Buick Skylark

3 Answers

Engine light came on. It's time for an oil

No. Oil change has nothing to do with check engine light. When the check engine light comes on it means that a sensor one of about sixty or more is out of range and has stored a trouble code in your cars computer. the only way to find out why it is on is with a scan tool. the scan tool comunicates with your vehicles computer. the vehicles computer will show the trouble code for example p0426 and the definition like maybe an oxygen sensor out of range. this doesnt neccesarily mean that the sensor is bad just that it is out of normal range this could be caused by other circumstances like a vacuum leak or clogged air filter ect. sometimes the diagnoses can be tricky and sometimes it is a matter of changing a faulty sensor. But it does not mean your motor is going to blow or that you need an oil change. although it wouldnt hurt to check your oil and all other fluids just to keep safe.

Oct 30, 2009 | 1999 Volkswagen Cabrio

3 Answers

THE VSC TRAC OFF & CHECK ENGINE LIGHTS CAME ON friends say its no big deal and its common with all toyota cars buta am just not confortable driving in it anymur. please help.....

1. VSC means Vehicle Stability Control.

2. TRAC Off means Traction Controln is off

3. Check simply indicates that there is an issue being communicated from the onboard computer.

Take the car for a scan dear.

Oct 05, 2009 | 2005 Scion xB

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