Why the Check Engine Light Is Scary—But Often Neglected. The 1999 Nissan Altima has 8 problems reported for when warmed up,rough idle, check engine light. The symptoms are it has a low knock type noise when its cold out but when the engine warms up the knock gets even quieter. ... the fuel pump sound comes on before i turn the car over. An illuminated Check Engine Light is another symptom of a bad or failing downshift solenoid. A car’s check engine light is essentially a diagnostic tool – it lights up when a car’s on board computer issues an error warning. Drive in a moderate fashion (avoid If a t light on mean transmission overheating need a flush and filter change usually over heat cause filter clogged if u in Pennsylvania,Newjersy or deware try the mobile mechanic they come to you call 2674071967 33 people found this helpful. According to Consumer Reports, blinking … The most likely cause of a car losing oil pressure when it warms up is a problem with the pressure relief valve, which regulates the oil pressure to ensure that there is enough pressure to circulate oil throughout the engine. Check Engine Light comes on. A code reader can be used to check the trouble codes that are generated by the misfiring problem. If you notice that your thermostat gauge stays on the “C” even after the engine has time to heat up, you may have a broken thermostat. ... Just make sure the smoke goes away as the car warms up. It is bad news when the ticking sound in engine is coupled with low-level … If you’re one of the many drivers who thinks it’s important to turn on your car and let it sit for a bit before hitting the road in wintry weather, you could be doing your engine more harm than good. Fix Finder is an easy-to-use tool to troubleshoot why your Check Engine Light is on using an extensive database of repair solutions from ASE certified mechanics to help you find the most likely fix. My Engine Shuts Off When I Reach a Stop Light. Check your dashboard gauges and lights for indications of low oil pressure or overheating. MOST COMMON REASONS YOUR CHECK ENGINE LIGHT TO COME ONThis is a list for most popular reasons a check engine light to come on. A shop can easily check this out if the car comes in very cold, like towed in, or you leave it overnight. Sometimes this can trigger the ‘Check Engine’ light. If the thermostat can’t signal to the car that the engine is warm, the coolant won’t be sent over to provide heat to your heater core and the air will stay cool. Occasionally, the check engine light comes on when nothing is wrong with the car, said Steve Mazor, chief automotive engineer for the Auto Club of Southern California. Despite this commonly held belief, your car doesn’t need to “warm up” on cold mornings, especially if … An engine rattling noise, or a clicking sound in an engine, can spring up from a number of sources. Refer to On board diagnostics (OBD-II) in the Maintenance and Specifications chapter. Any serious problems will normally be accompanied by other symptoms. If the computer detects a problem with the downshift solenoid circuit or function it will set off the Check Engine Light to alert the driver of the issue. Check this out. These will likely trigger your check engine light. If your ‘Check Engine’ light comes on, first check the gas cap to make sure it wasn’t left loose after refueling. Get a breakdown of the most common car problems that cause that orange-yellow light to come on and how to avoid expensive repair costs using the latest - and affordable - technology. Once the engine is warmed up to near the half mark on the temp gauge in the dash the car will stall or try to stall if idling for one minute to five minutes. My car drives fine in the city and on the highway. When it starts creeping into the danger zone, look under the hood to see if your electric fan is … They come in many shapes and sizes, depending on the make, model, and age of your vehicle. It shouldn’t be there at normal operating temperature. Your ECU should throw a check engine light if there is no signal from the crankshaft or camshaft position sensors. Solid illumination after the engine is started indicates the On Board Diagnostics System (OBD-II) has detected a malfunction. That's exactly why it's so frustrating when you do get a check engine light because it could mean so many different things. After that, this indicator light/warning light changes to BLUE and maintains illumination in BLUE. First of all, is the light blinking or steady? If the check engine light is blinking, reduce the strain on your engine by not over-revving or towing anything. Do this first. This truck has never died on me or has never triggered a check engine light so I am at a complete loss. It’s much harder to check once the engine is warmed… You know there’s something wrong with your vehicle, but you don’t know what, and that results in anxiety of uncertainty. It … The AutoZone Fix Finder. If you have an overheating problem in traffic, keep an eye on your temperature gauge. A mechanic can check the wires' resistance to verify whether they are operating properly. When the engine is cold or cool it will idle normally around 800-1000 rpms. Fed up with your check engine light coming on? The “check engine” light is intimidating when it first comes on—especially if you’re unfamiliar with the mechanics of your vehicle. Ignition coils can also malfunction, causing misfires in the ignition system. Average repair cost is $310 at 127,500 miles. Try disconnecting the car battery for about 10 minutes. If the light is blinking, engine misfire is occurring which could damage your catalytic converter. Low Oil Level or Pressure. A check engine light could pop up on your dashboard because you have a problem with your oxygen sensor, your catalytic converter, your spark plugs, your EGR valve, the list really does go on and on. These conditions mean you should pull over and … Whether it's engine knocking when accelerating or some kind of spark knock or just a general engine noise, some are more serious than others, but there’s one thing that’s true of … Finding out why your Check Engine Light is on may help you save gas and avoid more problems down the road. If the light doesn't come on until the car is warm it means the pressure is less with the thinner oil.Make sure the sender is accurate,then look into causes of low pressure, (bad pump,worn bearings) This BLUE illuminated light turns off when the engine is warmed up sufficiently. 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