I replaced spark plugs all but number 3 today didn't change anything, change tps nothin, changed air tempature sensor and no change. do you know what could be causing this problem? Just got it !!!! Example Question 1 Jane drives at an average speed of 45 mph on a journey of 135 miles. The only thing that worked, albeit temporarily was a spark plug replacement. Bassjunkie 5 on August 26, 2016 when I try to stay at 40 45 mph my car chugs jerks slightly, but when I hit the gas it goes away only usually at those speeds. In this guide we talk I think came on at 3100 tach and 80mph. The next best technique is to use an arosol spray such as brake cleaner. Lack of power steering oil could be the cause of the vibration. Helppp, Any update? It could be some weird transmission programming or it could be an issue with one of the internal components in the transmission itself. But dont change these components until they have been inspected and found to have problems. Fuel should have been inside the filter once you removed it. Any suggestion? The engine may also be much noisier than it normally is, sounding more like an aeroplane taking off than a car. guides, Check cars for recalls, common issues & maintenance Good evening! I dont know, but I would take it back to the shop and have them check their work. Another common cause is improper tire balance. The noise you heard could have been the engine knocking due to a lack of engine oil. Rpm decreased dramatically and the car would not accelerate, however the engine did not stop running. Having turned wrenches on vehicles for over 18 years, Mark has a passion for cars and writing about them. How Much Does It Cost To Fix AC In A Car? Unbalanced Tires When driving at speeds between 45 and 60mph, shaking may occur in the steering wheel due to unbalanced tires or uneven wearing of the tires. It runs fine when held at a consistent speed. Youre right. The fix: Check fuel pressure with a fuel pressure gauge. Car Shakes At Idle But Smooths Out While Driving, 6 Symptoms Of A Bad Car Battery and How to Test it, 6 Reasons Your Car Shuts Off While Driving & How To Fix It, 7 Reasons Why Your Car Is Hard To Start When Warm, Car Wont Accelerate But RPMs Go Up: Causes & Fixes. I bought a new fuel filter, spark plugs, coil parks. Somewhere the fuel drop then suddenly rpm decrease better check the complete fuel system from tank to injectors also . It could be a lot of things. Over time, they will wear out, and this will create play in the bushings and ball joints. The next thing you want to inspect is the brake rotors. 120,000 MILES. Another possibility is low fuel pressure. This article applies to the Mercedes-Benz C-Class and C-Class . I've went thru this a few times. Low or high air pressure can cause a whole slew of problems for your tires too. How did u get helped and where cos am having the sameproblem please advise me. Accelerating, car is very sluggish, totally under-powered. Had new sparks plugs. The gasoline clot stuck inside the gas tank, impedes the fuel to reach the engine. Unless you are constantly watching your speedometer (instead of the road), your speed is probably going to drift up and down a bit. If the damage is bad enough, you may also notice your engine running rough while driving. I have a 16 Tucson. Ive tested over 9 aftermarket brands for replacement CKP sensors from accessible online and regular auto parts stores and found the DENSO Sensors to be the only ones to work properly on NISSANS. However the vehicle is still running roughly around 45 mph, when I normally increase the speed. All the problems you've had is common with these vehicles as they age. Immediately goes away if you let off the gas pedal. Your cars air filter is the first line of defense against dirt and other foreign particles. If your car shakes while driving, it can both be a sign of something serious and something less serious. Read on! Well, I broke down and went to Ford. Air Filter is clean. In those cases, youll have to either have to take the injectors out to attempt to manually clean or simply replace them. I noticed this issue is very prevalent in warmer weather. Hello. Also, if carbon has built up in your intake, throttle body, and EGR valve parts, this may cause the problem you are experiencing. Why a car won't accelerate past 40. I then took it to a different mech and he told me I was having a misfire from one of my plugs again. The average replacement cost for a fuel pump is $450.However, the price varies between $250 - $1000 depending on your car's make and model.. 4. I am running out of ideas also when I hit the gas hard I get black smoke. One big thing to note is that water and electronics are a bad combo so there may be some electronics damage including sensors. When this occurs, there is an internal vacuum leak created by the EGR valve. A question about default mode vs. adaptive memory, Do Not Sell or Share My Personal Information, 2006 F150 5.4 Sputtering - New thread CONDENSED. I took it to the mechanic's and he found and fixed a leak in the intake manifold. Cheapest and fastest thing to do first. While driving approximately 45mph the car suddenly started running rough and lost all power. I dont know. Also when I put on my air-condition the engine goes off. Faulty Mass Airflow Sensor. While most cars on the road use drive-by-wire electronic throttle control to accelerate, a physical accelerator cable (or throttle cable) are still found in many vehicles. Aside from the EGR system, the best way to inspect for a vacuum leak is with a smoke machine. This will cause the car to respond more slowly when you press on the gas and it lurches instead of providing smooth acceleration. If the car shakes more when you press the brake pedal, thats a strong sign that the brake rotors are causing it. Most apparent when coming up to speed on the highway or slight acceleration at highway speeds (>60 mph), engine revving between 2k to 3k rpm. Unfortunately jerking under acceleration could be caused by many things so its hard to know what the problem is without more information. My car started shaking while driving and hitting 40-45 mph. Please what is the solution? If there are no codes, check the transmission fluid. The wheel bearings are mounted on the wheel hub and allow the wheels to rotate freely. Two shade tree mechanics on my block thought it was a problem with my vacuum control valve, not the . A failing fuel pump would struggle to keep up with fuel demands and cause your car to jerk or surge forward while driving. As the owner of Car Treatments, he works with a team of automotive experts (in their respective fields) to publish new content on a regular basis. Don't notice any issues on the highway. It Seems To Make A Clunking Noise Through That Rpm Range When Slowing Down. 2002 LINCOLN TOWN CAR. Always keep an eye on the engine temperature, as running with a hot engine is likely to cause serious permanent damage to a car. But what could be causing these shakes, and do you need to fix the problem immediately? It will first happen around 45-50 mph and again at around 60 mph It also happens when under additional load, such as driving at a constant speed up a hill. 2006 Acura MDX 135,000 mi, Visitor Shuddering usually between 25-40 mph when slightly depressing gas pedal, cruising or slightly accelerating. If your car wobbles, it is usually due to bad suspension bushings or a bad wheel alignment. it runs fine but when I try to get up to speed it starts running rough and I can't keep it at 45 mph it starts to idle bad at 2500 rpms the Car had new plugs and wires. It might be blocked; you will need to take it to the mechanic. Lets find out! It sounds like there are several issues with the car, so its hard to say why there would be gas in the coolant. What all did the mechanic replace while it was in there? However, it can be disabled both temporarily and permanently (it can be enabled You can get a key for the vehicle at a dealer or a locksmith, just be sure that it's a PASS-key III+ which is denoted by a plus symbol in a circle. P0138 OBD-II Trouble Codes: O2 Sensor Circuit High Voltage (Bank 1, Sensor 2), P0412 OBD-II Trouble Code: Secondary Air Injection System Switching Valve A Circuit Malfunction, P2158 OBD-II Trouble Code: Vehicle Speed Sensor 'B'. Have Done A Full Tune Up And Changed The Fuel Filter. Vibrations that come in and go out repetedly at the same speeds or conditions are normally drive train related and the most common are drive shaft or U joint issues. Does your vehicle require premium fuel according to the owners manual? when i put in cruise control it smooths out. It will not always buck or hesitate once it runs rougher, but it will ONLY do it after the load, sound, and running rougher have started. I replaced 4 new spark plugs set the appropriate gaps. My neighbor's trick to get the CEL to go is to hold in the brake and give it gas (almost as if you were to do a brake stand) and the truck will start the missing under load so you can get the codes. A check engine light should be present when the mass airflow sensor is bad but you can easily confirm via an OBD2 scanner. We will be happy to assist you. Can bad spark plugs cause a car to shake? No rotten Egg smells, Overheating, or low exhaust pressure and No Code PO420. lexus es 300.. with 220k 0n it.. the prolblem is check engine is on.. codes po 300 200 400 600 mis fire codes . If so, what codes are stored? Took it to auto zone to get a diagnosis and the Egr code came up as well as fuel system lean please help. When turning left,then back straight after a minute or more the left wheel turns right on its on,then straight again.it Only when I turn. Hi my Audi A3 jerk when I press the accelerator sometime it drive ok but it will do the jerking I put more acceleration, I have put on plugs nd charged coil packs but still does the same, any advise posits annoying, hi my Peugeot 207 1.6 manual has a problem when it gets to 2000rpm it hiccups a lot ,we,ve changed the fuel pump but it still doing so we even tried to unplug the sensor on the acceleration pedal but it still doing the same thing please help, My suzuki swift 2015 has this problem. Hi,I have a 1.3 Avanza 2008 it was involved in accident and sent to machenic now is jerking when am driving not easy to change gears,no power please help. It loses power once I step on accelerator pedal. This procedure involves adding small amounts of weight to each wheel, and it is done with the help of a tire balancing machine. Few things are more annoying than a car that shakes when driving at higher speeds, especially when going for a long road trip. OBD scans often do not detect the failure which is only a partial failure of the component in addition to the lack of the appearance of a check engine light. Engine decompression helps your brakes last longer and car stop sooner. It took a little while but when I could no longer afford premium my cars symptoms came back. If the car is traveling 40 mph and the speed suddenly falls while the engine continues to rev, the transmission probably is to blame, especially if pushing the accelerator has no effect and the car continues to slow down. New plugs and aftermarket spark plus wire solved the problem. My car has 163000 miles. Blocked Fuel or Air Intakes. Drain your gas tank and examine the whole area for rust, gasoline gel stuck on the walls, and scale. 5. If the wheel bearings wear out, the wheel can move freely from side to side at any speed, causing disturbing vibrations. On colder days, condensation can form under the distributor cap. If your car is making a clicking noise when turning, it is likely you have an outer CV joint (constant velocity joint) that has failed because of a torn boot or old age, most likely a torn boot. If the check engine light is on, scan for codes before you do anything else. Q: Car is running roughly at around 45 mph asked by Amelia C on July 27, 2016 My van has gone 180,000 miles. Depends how submerged the car was. How To Fix A Car Thats Shaking While Driving? The most common reason why a car is shaking when driving is due to damaged or unbalanced wheels. It also lacks in picking up speed to when trying to drive from a stop light or stop sigh. In this article, well take a look at the most common reasons, and how to fix them. Any suggestions as to what it might be?? The surging you feel while under light throttle, which is what is happening at a cruise, is due to a lean condition. This moisture will cause the engine to misfire, thus your car will jerk when accelerating at low speeds. Is there anything you can do to more easily replicate the problem, or anything you can do to make it go away? Dirty injectors can cause your car to lose power and make your car jerk while driving at constant speed or from a stop due to frequent engine misfires. In the future, please include the codes as they can help use pinpoint and give you a more accurate answer. Pay attention to any jerks or stutters, particularly while accelerating under a load, as a symptom. Since it also mentions your EGR, this is a good place to begin since EGR systems can develop restrictions that keep the valve stuck open. In fact, there are many possible causes of car shaking. I had the transmission fluid changed a few months ago and the mechanic said there were no shavings in the fluid so the transmission is good. Have your local shop check it out., Also could be a wek timeing chain. After you replaced the radiator and hoses to get it running again check all the vacuum hoses to make sure there is no broke hose. The Front motor mounts soak up most of the engine vibration and last for about 10 or 12 years before they start to get Hi there. Is there anyway to confirm that it is the computer? I limped into the he gas station in my 08 Altima and fueled up and afterwards it started jerking and running rough so I changed the spark plugs due to a mis fire in one of my cylinders and still doing it.
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