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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
7,238 Questions
What is OBD code P0700 on a Chrysler?
P0700 : EATX code present.
This code just means that the engine computer has been notified that the transmission computer has detected a problem and set a code. You will need to have the transmission computer checked for codes.
The fault code P0404 means " Exhaust Gas Recirculation Control Circuit Range/Performance".
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How do you get the abs an check engine light to go out on 1998 Chevy Malibu?
Fix the problem causing them to be on.
What does obd code p0795 on an s-type mean?
Pressure control solenoid "c". Located in solenoid assembly block
Hey John==The check engine light is trying to tell you that something iis wrong. Takeit to Auto zone and have the codes read anD it wiss tell you what area to check. GoodlucckJoe
yes ifyou have a bad cap $300 is probably for a whole new distributer
What causes a blinking check engine light and engine misfire after rain on a Ford Windstar?
The keyword in this question is rain...
Water and the engine electrical system just do not 'mix'.
A few pieces of the puzzle to start...
- The flashing check engine light (CEL) indicates the engine computer has detected the engine is misfiring - and lots of it. You should be feeling the engine struggling to run and 'stuttering'.
- Electrical basics:
- The coil generates a high-power electric charge
- The sparkplug wires carries that charge to the sparkplug
Sidebar: The computer (PCM) times the electrical charge to get to the sparkplug at just the perfect time when the air/fuel in the cylinder is ready to fire - The electrical charge enters the sparkplug and ignites the air/fuel into a controlled explosion (of energy).
- Electricity will take the path-of-least-resistance,especially if there is water/moisture to travel along
If there is any weakness or flaw in the connections between the sparkplug wires and the coil, or, at the other end at the sparkplug, the electrical charge is going to escape, or take a detour and not make it all the way sparkplug!
So in this case, focus your efforts on finding where the electric charge / 'spark' is escaping:
- Replace sparkplug wires - chances are yours are original and about 10 years old. They've done their job and time to retire them.
Might as well do the sparkplugs while you're in there. - Inspect the coil for any signs of cracks or breaks / flaws in the surface.
Electricity often leaves a light gray-colored track on the surface of the coil - a good indicator of leaking at the wire/coil connection point.
See "Related Questions" below for very detailed instructions/information on replacing plugs, wires, coil and firing orders and more.
What does it mean when engine vibrates when you're at a light?
Most than more likely one of your motor mounts is messed up. You should check those out.
Can also be a vacuum leak.
Cylinder 4 misfire on 2003 Montana?
Answer
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.
Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Answer
this could be anything to do with the cylinder on your car. The plug, the wire, the cap, or the coil (whichever you have.) your best bet is to do a tune up on thecar and do all the plugs, wires, cap, and rotor. if you have a coil pack, try to change those. this is all i can say for now. if that doesn't work, ask the question again and give a little more detail on how the car is acting.
Technically speaking, cylinders do not "misfire": the spark plug causes a spark which causes the fuel to ignite which moves the cylinder, so it is the spark plug that may misfire. Given that, motor vehicle spark plugs may misfire due to any of a number of reasons, including watered-down or low-grade fuel, old and/or dirty oil, fouled spark plugs, clogged cylinders, insufficient oxygen to the plugs, poorly aligned cylinders, et al.
How do you reset the check engine soon light on a 2002 Chevy silverado?
You use a scan tool after repairing the cause of the code that turned the light on.
What does the engine symbol mean on your fiesta dashboard?
It is the Check Engine light. It comes on when the ECU detects a problem with the emissions system. Can be as simple as a loose gas cap or can be serious. Have the ECU scanned.
What does it mean to have a flashing security light on a 1997 Nissan Pathfinder?
A flashing CEL light means that the computer has detected a pattern of misfires that's serious enough to damage the catalytic converter (a $1,200 part). You should stop driving the vehicle and get it to a shop immediately. It will not get better on its own and continued driving will not only damage the cat converter, but plug it up to the point where you won't be able to drive the vehicle anymore.
How do you reset the check engine light on a 1998 ford ranger?
Try taking the battery cable off for about two or three minutes. that should reset the light. If it comes back on, it may be because the controller sees a problem.
How do you turn off the service engine light on a 2002 Cadillac Escalade?
"How do you turn off the service engine light on a 2002 cadillac escalade?" When replacing oxygen sensors, will the service engine turn off?
Common reasons for the check engine light coming on 1995 Lincoln?
There are pages and pages of causes for the check angine light. Have it checked fro codes with a scan tool.
What does it mean if the engine light comes on in a 1995 Nissan Sentra 200 SE-R?
If it is a 1995 200SX SE-R it should NOT give a 402 error code. Nissans up to 1995 did not report 402. 1996 to 1998, error code "0402" indicates a problem to the "Fuel temperature sensor or circuit". Check sentra.net for a list of pertinent error codes. Chris
How do you check the petrol gauge on a 1998 petrol peugeot 306?
Fill up with diesel and see if the gauge still goes up.
The sender unit is under the back seat, one to the left under 6" black plastic plug is the fuel pump, the one to the right is the sender unit. Prise the plug out of the floor and unscrew the the sender unit from tank. Once out it can be moved manually while the ignition is on and see the gauge moving. The float arm is stiff and am still truying to work out why as 3 others checked were all the same. To get at the dash gauge remove the steering wheel, instrument shroud and instrument panel, not a lot to see as all printed circuits.
I would suspect a faulty VSS. Try replacing the vehicle speed sensor in the transmission.
Describe what a OBD II code P0171 and P0174 for 1996 grand marquis means?
You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration. A code P0171 may mean that one or more of the following has happened: * The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. * There could be a vacuum leak downstream of the MAF sensor. Possible solutions include: * In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling * Inspect all vacuum and PCV hoses, replace if necessary * Check for a dirty fuel filter and proper fuel pressure
Why is a frontera engine light always on?
It is telling you that there is a fault with the engine - you need to take it to a dealer and get it diagnosed and repaired as soon as possible.
How do you reset the engine light on a 2007 Honda civic ex?
As on all cars, you need an ECM scanning tool to reset the stored codes in the computer to turn off the check engine light. Many auto part stores will do this for free.
What is a p0430 and p0455 code on an infiniti i35 2002?
Trouble code P0430 means: Catalyst Efficiency Below Normal (Bank 2) Trouble code P0455 means: EVAP System Gross Leak (0.080") Detected
