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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
Do you have to reset check engine light after you replace valve cover gasket on a 2000 dodge neon?
If the light is on, it will need checked and diagnosed.
How do you turn a oxygen sensor light off?
You can not. Replacement of the oxygen sensor is the only way.
What does check engine code p340 mean on 2003 dodge neon?
All "p" codes have four numbers in them. P340 doesn't mean anything. Should be Pxxx
I think the answer you are looking for is 0340 and it means that you need a new camshaft sensor, crank sensor, or timing is off on your car. The entire circuit for these sensors sends off this code, so it could also be a plug for one of these sensors. Good luck. Remember if the sensors don't fix it than they are doing their job and your cam is out of time.
2004 Chevy venture Check engine light is on Exhaust and Emissions problem?
it can be of all stupid things a improperly fasstened gas tank cap
Why is the 2006 Ford Focus emissions light is on?
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
How do you reset the computer on a 2002 ford taurus?
To reset the computer on a 2002 Ford Taurus disconnect the negative battery cable. Leave the battery cable disconnected for five to ten minutes. Reconnect the cable and start the car. The computer should be reset.
It's difficult to tell, but sometimes a bad battery, or even a connection, will light lights, ect, but the minute you throw a big load (such as the starter motor), everything dies. Leaving it sit for a while will sometimes allow the light & things work. Check all batteries, connections & wires. Side terminal batteries sometimes corrode where you can't see them, sometimes the side terminals are loose inside the battery. Top post batteries can get a hard corrosion that requires the post & clamp to need a file to cut it. Sometime, one weak cell in a battery can cause a hard cold start, while the vehicle still starts fine when cold. Diesels take a lot of amps to start cold.
The 6.2 like most diesels has 2 batteries - a) because it takes a lot of amps to run the glow plugs and b) it has a much heavier starter to turn the diesel over (draw is typically about 175 amps on a gas motor -can be 400 + for a diesel).
Your Suburban should have a volt guage - watch closely as you wait for glow plugs to cycle, the voltage will drop noticeably as they go on and off - the KEY indicator is "IF the voltage returns to close to the normal voltage after the glow plugs finish cycling, then both the batteries and wiring are pretty good, BUT if the cycling of glow plug system really knocks down the voltage, then trying to engage the starter will be the last straw.
This tells you that you likely have 1 or both batteries going bad.
When a battery is more than 2 yrs old it can start to sulphate and lose progressively more and more of its reserve capacity - this can go on for a long while in a gas vehicle if the motor starts right up and the alternator is good.
In diesels however, the demands are far higher and yu don't get away with this for long. My 85 6.2 Suburban (350,000 miles) had batteries changed about every 3 - 4 years.
What does the check engine light mean in a 1996 Honda Accord?
light means ther is a sensor gone bad what you got to do is there is an on board diegnostic on the passenger side lower floor panel there is a blue clip turn every thing off and install a jumper wire then turn key till the check engine light comes on again and count the times it blinks 1 long blink and the how ever manny short blinks mean two digit code like 16 or like thatthen ask a parts store for the code meanings Pull the codes from the computer, match the code to the troubleshooting procedure, follow the procedure to find the source. Repair the source, light will go out if that was the only problem. There are "monitors" or self test the computer runs the car through, if a problem occurs, it may not run all of the self tests until that problem is taken care. Therefore, another problem may exist. It is emission related.
P0700 is transmission code present. You need to have the transmission computer checked for codes to know what the problem might be.
What would make check gauge light come on in 1999 Chevy Tahoe?
Check gauge? Never heard of a check gauge light. If you are referring to the check engine light it is on because there is a problem with the emissions system. You need to have the ECU scanned by a professional.
What does check engine light look like on vw passat?
A yellow engine or 3 plugs on each three sides of a rectangle.
What do you look for when the check engine light comes on your 2000 Honda Accord?
When the light comes on, your car has stored a trouble code. I would have the codes extracted(PEP BOYS/AUTO ZONE) to determine the problem.Sometimes it can be minor, but there can be 30+ different codes.
What could be wrong if the check engine light stays on when driving a 2003 dodge SX 2.0?
It means the computer has detected a problem with the emissions system. The problem can be many things. Have the computer scanned to recover the fault code. This code will help you to determine where to look. Take your car to AutoZone, they provide a free check of your error code(s) that would be triggering the 'check engine light'. It is free program at its 3,037 stores nationwide. http://autozone.com/servlet/UiBroker?UseCase=ST001&UserAction=displayStoreLocator
no idea whats wrong but mine does the same.... it might be the clutch or the gear box.... took mine to a Volvo dealer.. they fixed something but it still broke down again on the way home... not sure they know what they are doing.. do you have any more info ??
if this is a newer car 1996+ it will be a obdII scanner needed you don't have to warm up the car to pull a code unless you want to see the freeze frames and how the system is switching but yea all you would do is plug in the scanner and turn the key to the run position but do not start
What does the check engine light mean when it comes on for a 2001 passat?
It comes on when the engine computer detects a malfunction and sets a code. You need to have the system checked for codes.
Check engine light with a p0341 code?
Trouble code P0341 means:Camshaft position circuit range/performance
What is a p0440 trouble code and what to do to fix?
P0440 EVAP System No Flow During Purge Possible Causes Setting Conditions
- Charcoal canister is loaded with fuel or moisture
- Fuel filler cap is loose, cross-threaded, damaged or wrong part
- Fuel tank, fuel filler neck or fuel sending unit 'O' ring is leaking
- Fuel tank pressure sensor is damaged, disconnected or it failed
- Fuel tank vapor line(s) is clogged, damaged or disconnected
- Purge valve vapor line is clogged, damaged, or disconnected
- Purge or vent solenoid power circuit is open (check the fuse)
- PCM has failed
DTC�P0107, P0108, P0112, P0113, P0115, P0116-P0118, P0121, P0122, P0123, P0125, P0443, P0449, P0452, P0453, P1106, P1107, P1112, P1114, P1115, P1121 and P1122 not set, engine started, ECT and IAT sensors from 39-86�F and within 16�F at startup, vehicle driven at a steady speed less than 72 mph, system voltage over 10.0v, BARO sensor more than 75�kPa, fuel level from 15-85%, and the PCM detected the EVAP system was unable to achieve and maintain vacuum during the EVAP flow and leak test. Note: An Ultrasonic Leak Detector can be used to help detect a leak.
This code sets in 2 Trip(s).
Your most likely culprits are going to be a loose, damaged gas cap, vent or purge solenoid, evap canister, or fuel pressure sensor. Other than the gas cap, I believe all of these items are dealer only.
What does the red light on the dashboard of my Fiat Seicento mean Its in the shape of a handbrake?
it means your emergency brake, or hand brake is set. if the brake is released, check cables and sensor. could also be the switch or sensor.
This happened to me too. The emissions test broke the diaphragm in the gas cap. Bought a new gas cap and it fixed everything.
Why does the tire sensor fault light come on.?
There is a problem with either the pressure in a tire, or a sensor itself has a problem. You will need to take your vehicle to a repair shop that can check the tire press system for codes.
Why would the check engine light come on in a 1989 gmc safari van?
My suggestion is to take van to autozone and they will pull the trouble code out of memory for free. Then you can go from there.
The reason it wont start when the lights don't come on is because at that point your eec a.k.a. ecu,pcm or computer isn't coming on. the causes could be ignition switch or eec relay if you can locate the relay that is the most likely cause.
