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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
Why is the check engine light on in a Hyundai?
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 AutoZone 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.
What reasons are the engine light on a 2000 bravada?
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 AutoZone 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.
I assume it's working and you just want to check the calibration of the speedometer. I recommend you use a GPS to check it since those devices have a speed indicator included in their many features.
If your speedometer is indicating zero when the car is moving, you likely need a new speedometer. If it's reading zero when the car is moving, try clapping the dash above the instrument to see if the speedometer moves off zero. If it does, then you 100% need a new one. If it doesn't, then you 90% need a new one because you have about a 10%chance that it's the car's speed sensor which might be in the transmission. Not a big deal ($) that, the bigger deal ($$$) would be the speedometer itself.
Check engine light plus 1994 3000GT engine sputters?
I had same problem, but this can be caused by a few different things. its either the PTU, the coil pack or the ECU, more often than not its the ECU!
On a Dodge it is solenoid switch valve latched in the low/reverse position.
It usually means that the solenoid pack or the valve body in the trans has gone bad.
If the transmission fluid level is low will it cause check engine light to go on?
If it is causing the trans to slip, it could.
What is the check engine code P0445 for?
Large leak detected. 1 of 4 things:
1. Defective, loose, or missing fuel cap.
2. Evap canister is broken, hose cracked or disconnected.
3. Purge or vent solenoid defective.
4. Vacuum leak at engine.
How do you get the regular maintenance required on a Volvo xc90 to turn off?
So I just did this on my 2007 XC 90 Turn key to l position Press odometer button until beep. Turn key to ll position Press odometer button until triangle warning sign flashes, release immediately.
How do you reset the check engine light on a 1998 Chevy lumina after it has been serviced?
i unhooked the battery...(both terminals)
How do I Repair blinking Nissan Quest 2001 air bag light?
The light is blinking because there is a problem with the SRS. You don't try and repair it. Working on the SRS can be very dangerous. Seek out professional help.
WHY DOES Cylinder 3 misfires 98 ford explorer?
Could be a bad coil (each cylinder has its own) common problem
Check engine light means there is something not operating how it is suppose to. I highly suggest you take it to a mechanic and have it checked out before the repair bill gets way to high
With my S80 t6, it was a cylinder misfiring. I pulled the spark plugs and found the bad one. I put new plugs in and a new coil pack where the bad plug was and it runs great.
Is there a way to read check engine light codes on a 2004 Kia Sedona without a scan tool?
Unfortunately, the only way to retrieve trouble codes after 1995 is with the OBDII scanner. The good news is that there are some auto parts stores that will scan it for you free of charge. Or, you can buy a simple OBDII scanner for about $60.
Why is the Service engine soon light on in 2002 Saturn sl1?
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
This light comes on every 3000 miles indicating you need to change the oil. After changing the oil, lift the hood there is a black fuse box on the right with a knob in the middle.Undue this and remove the cover. Look for the red oil change button. Turn key to run position and press the oil change button in for 5 seconds. The change oil soon light on the dash will start to flash. As soon as the light stops flashing put everything back together.
What is the diagnostic codes p0442 p0455 p0456 on a 2002 dodge grand caravan with a 3.3?
They all have to do with evaporative emission system leaks. You probably have cracked vaccuum hoses under the air cleaner box, and possibly under the van at the charcoal canister.
How to reset check engine light on Prius?
After repairing the cause of the code, you reset with a scan tool.
Why is my Engine warning light on my peugeot 106?
It is indicating that there is a problem with the Engine Control Unit (ECU).
This is normally due to a failure of one of the many sensors feeding it, temperature, air pressure, throttle position, Lambda sensor etc.
Check for loose wires in the engine bay first.
It needs to be diagnosed on an agent's computer diagnostic system, which will then tell them what the probable cause is.
How can I fix a P0442 code on a 2002 Dodge Dakota?
Twice now my 2002 Dodge Dakota has generated the P0442 code. The first step in the repair process was replacing the gas cap with a cap from the dealer (many articles suggest that it is best not to use an aftermarket cap). Replacing the cap is cheap and easy and should be the first thing you try. Unfortunately, in both cases, the gas cap wasn't the problem.
A single small crack was found in one of the rubber hoses at the charcoal canister in both cases. This is a known area of hose failure. A crack here will cause a small leak which will be detected by the PCM during the Evap System pressure test cycle. Replacing the rubber hose was the solution.
The tools needed to fully inspect the Evap Emissions System yourself are a flashlight and a $5 inspection mirror. All the connections can be visually inspected, except the hose connections on top of the fuel tank. Also, reading this article and looking at the diagram under the hood fully taught me how the system works. Evap Code Blues, Motor Age, January 2005, Jacques Gordon On the 2002 Dakota, the charcoal canister is mounted on the frame rail under the drivers door. The evap pump is mounted under the power distrubution area. The pump is very hard to see and difficult to get at. The inspection mirror is a must! The solenoid is mounted beside the battery. The air filter for the pump doesn't impact this discussion.
Look all the way around each hose. It seems like the crack is always in the hardest to see place. Remove any tape that may be over the rubber hose at the connection area. Both of my leaks were under some sort of tape that was put on at the factory. Tape will not seal a leak!
I found and repaired the bad hoses myself and did not require the services of the dealer. You can do it too!
Why does your car keep burn gas so fast?
Low fuel mileage can be caused by several things. Check the computer codes for a sensor problem. Make sure that the vehicle is properly tuned up and the fuel filter is not clogged.
How Do you reset the Engine Service light on a 1996 Infiniti I30?
A reset Engine Service Light comes on when an issue comes up with in the engine. This light can be reset by a tech or by fixing the problem.
What is the most common check engine light sensor on a 93 Chevy caprice?
Misfire
Oxygen sensors
TPS
MAP
It's far less expensive and much more productive to just take the vehicle to O'Reilly (Checker, Schuks, Kragen, Murrays), Auto Zone or whatever is available in your area and borrow a code scanner to see what the computer has detected.
You could throw a lot of money at the problem, replacing whatever seems most likely, but why not plug in a sensor and at least get in the right AREA.
You changed oil but low press stop engine light keeps flashing?
If you're certain that there is sufficient oil, the low oil pressure light means that either the oil pump isn't working or, more likely, the bearings are severely worn.
What does E4 repair code mean on a 1991 Ford Thunderbird with electronic climate control?
E4 means your Ambient air temperature sensor is open/bad. It is located above and to the right of the a/c condensor core behind the front bumper. Other possible causes are shorted wiring to the sensor or a bad ground.
Hey Derek==You have clutch problems. Take it to a garage and have it repaired. GoodluckJoe
I regularly have this every 4 yrs or so the transmission selector bushes need renewing cost approx 50 to 70 pounds , classic signs are difficulty selecting the reverse or 5 th gears initially not sure waht happens later as i change the bushes at this stage
-----------------------------------Update 1-11-12----------------------------- Here's what I did.... Grab a can of WD40 and stick the straw in between the button and the casing and give it a few squirts... Wipe up with a paper towel and work the button a few times... Should loosen right up. At least it did for me.
