car runs rough at 45 mph

If the car vibrates more when you press the brake pedal with light force and if you feel the steering wheel vibrate, the problem is most likely in the cars front brake rotors. You could try performing a leak down test and see if any of the air escapes into the cooling system. Took it to auto zone to get a diagnosis and the Egr code came up as well as fuel system lean please help. However, if you have engine trouble, the engine light will also appear on your dashboard. But it still does the same. Certified Automotive Diagnostic Technician. For what the dealer charges to diagnose and replace two I can buy the remaining six for anyway. The engine is misfiring as well. 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. OBDII code was o2 pre-cat bank 2 (cyl 4,5,6), and paid $400 (200/200 pt/lbr) to replace. The car is still doing the same exact thing. A check engine light should be present when the mass airflow sensor is bad but you can easily confirm via an OBD2 scanner. Thats an interesting problem. I would begin by inspection and cleaning our EGR passages. If you havent changed your tires in a while or you know you had a minor accident with a curb its definitely time to do a thorough visual inspection of your tires and wheels. Car jerking is a common problem with many different factors that can contribute to the cause. Hi, I discovered my car make strange sound like gun shot and it brings not too deep black smoke via the exhaust pipe. Personally I think alot of our issues may have to do with the quality of fuel we are using. 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. K I know it has minor issues already Heres my issue Im having alright the coolant overflow tank has grease and gas and oil mixed in. Lack of power steering oil could be the cause of the vibration. What check engine light codes are you experiencing? Had new sparks plugs. Because I done almost every thing from plugs, maf, filter, pump nozzles but still jerking. My Car Was Running Great. 2012 Camry - Sputtering/vibrating at low RPM - Toyota Nation Forum I was told that it was 3-4 clutch and I need to have the trans repaired. Read on! One of the spak plugs was washed and the rest were not washed or removed. Car Rpms Fluctuate While DrivingI've noticed a small fluctuation in the Magnus is the owner and main author of Mechanicbase. The check engine came on once but after turning the truck off, the issue cleared and never came back. What causes roughness in my 2001 Lexus LS430 with 280000 miles - JustAnswer This will probably require a mechanic to look at the car and give you an accurate diagnosis. Accumulated Moisture. A rough-running engine is a real drag because you generally have to deal with misfires, stumbling, poor idle, etc. However, seeing warped brake rotors with the naked eye is in most cases impossible, but you can still inspect them to see if they are very rusty which can be a strong sign that you need to replace them. Does your vehicle require premium fuel according to the owners manual? Thanks for the help so far. Having the throttle body cleaned as and a fuel induction service may help as well. To me a few times before but i titend my battery cables and it stopped jerking but this time it has not stopped only worsened and now my check engine light and a wrenh light is on also now I have to jump start my car every time I leave can someone help please? All Cylinders Misfiring Honda Accord1 misfire) and 305 (Cyl. In older The problem got progressively worse and dangerous to drive to the point where I would be going 60+ mph on a highway and the car went into neutral . Premium is usually just a different octane rating, which means the fuel is more resistant to combustion under pressure. 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. 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. 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. The first thing you need to do is get that code scanned. Signs of a Bad Transmission on a Car at 40 MPH | It Still Runs More information: 7 Symptoms of Bad Brake Rotors & Resurface Cost. costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, The statements expressed above are only for informational purposes and should be independently verified. If the car shakes more when you press the brake pedal, thats a strong sign that the brake rotors are causing it. As you see, there could be a lot of different potential problems causing this issue, but its not all of them. Do you know where the noise is coming from? This did not help same problem came back one month later, misfire on cylinder #3 and all spark plugs fouled. Trouble starting, misfires, dies when you let off the gas. Unless you are constantly watching your speedometer (instead of the road), your speed is probably going to drift up and down a bit. Check if the car vibrates or shakes only when you turn the steering wheel. This part is responsible for gear changes when you accelerate. Ford Fusion Car Will Not Accelerate Problems It shifts roughly at 36 mph and again at 45 mph while increasing and decreasing speed. If its dirty, replace it. 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. When I start my car to gear 1 and 2 it starts to vibrate,but gear 3 it does not vibrate,soon as you go back to 2, its start again,the vibration its on underneath on left hand side,please help. 135 miles 45 mph = 3 hours Example Question 2 Chris cycles at an average speed of 8 mph. I recently bought a 94 Lincoln Town Car, Signature series, with 84,000 miles with a 4.6L engine. However, if they look rusty or have other damage, it may be a reason to suspect that they are out of balance. A fluid leak can also cause your car to overheat, which can lead to even more problems. Another possibility is low fuel pressure. I drive a Polo vivo 2012 model. 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. It has been running roughly lately. Lean, long-legged dogs with deep chests (meaning big lungs) tend to be able to run the fastest, from 25 to 45. Wheel Bearing Noise Causes & What Does It Sound Like? Could be some sediment or debris at the bottom of the tank that the fuel pump sucked up, which is now causing issues. SOLVED: Car stutters and hesitates at about 45 MPH - Fixya Just got it !!!! Hi I have a 1988 ford f150 5.0 5 speed just got it out of the shop and when I was driving home it started jumping and then would run fine then jump again badley just had new distributor new sensor relays so what could be causing this. What Are the Benefits of Having an Engine Rebuilt Instead of Replaced. Here is a more detailed list of how to fix a car thats shaking while driving. This is a common and annoying problem that can be responsible for a variety of issues. 6. 2WD. The best thing to do is switch the coil over from cylinder 3 to cylinder 1 and see if the misfire continues with cylinder 3 or if it changes to cylinder 1. what you Engine Runs Rough And Stops Running After 20 Mins, Will Start After 15 Mins. Check for codes and see if you have one that says Cylinder X Misfire, where X is a cylinder number. Made with in Silicon Valley. New flow senior installed.did dianostic. I was beginning to think I was losing my mind. 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'. If he cycles for 6 hours, how far does he travel? The engine may also be much noisier than it normally is, sounding more like an aeroplane taking off than a car. Just had spark plugs,coil pack etc. Two shade tree mechanics on my block thought it was a problem with my vacuum control valve, not the . >Then one day CEL came on. However, there are other things that can be the cause. 5 Symptoms of Unbalanced Tires & Tire Balancing Cost, steering wheel shakes when you press the brake pedal, Car Shaking When Braking Common Causes & What to Do, Why Is My Steering Wheel Shaking While Driving? The leveling system on your vehicle works much like filling balloons. I am running out of ideas also when I hit the gas hard I get black smoke. 3L with a misfire problem. My 2000 Toyota corolla jerks and sometimes switches off while driving. like for my issue car runs good but when I press the gas pedal itll go but once at a certain speed like after its warm 20 mph itll act like it's in neutral but I let off and touch gas pedal itll go but . It seems to happen when I'm just giving enough gas to maintain speed. Then you want to balance the tires to see if they are round and balanced. In this case it would be the cars fuel pump. Eish I tried everything in my power on my Golf5 2.0fsi dsg. Performance is fine otherwise. 2006 Acura MDX 135,000 mi, Visitor Shuddering usually between 25-40 mph when slightly depressing gas pedal, cruising or slightly accelerating. However the vehicle is still running roughly around 45 mph, when I normally increase the speed. This will cause the car to respond more slowly when you press on the gas and it lurches instead of providing smooth acceleration. If it feels like the car is slipping or losing power, it could be a transmission issue. I use Mazda Tribute, After repairing my broken frawueel ,my car jerks or vibrates when staring off with 1st,its does same when its changing to 2nd and sometimes 3rd. Brlow 45 mph the car runs great. Like Bill said the CEL isn't easily tripped with a slight miss, experienced this many times. Please what can I do after changing airflow meter and theres no change. 10-15 mph, Rough Idling there are no scan tool codes that havent had the parts replaced. A failing fuel pump would struggle to keep up with fuel demands and cause your car to jerk or surge forward while driving. Ive done a code check on it came back as vvt solenoid so bought it and replaced it but my problems still not fixed. Hi, my GM Acadia 2012 jerks while changing from second to third gear. Therefore, when it comes to issues like a shaking car, it is often worth taking your car to a mechanic instead of replacing all the parts in your car without doing a proper diagnosis. 2000 Lexus ES 300 check engine light and traction off lights are on and the engine runs rough usually when I hit 45 mph . How do I permanently disable the rear view monitor system? I also had a VR6 years ago and ran into the same issue. A car starts out rough and then smooths out because of any of these four reasons: Vacuum Leak. It jerks doing into 2nd gear (it has an automatic transmission) I also notice after driving for a while itll jerk when going into other gears almost like the trans is overheating. The mechanic reset the code and the scan shows normal all. However, if the car doesnt shake more when you press the brake pedal than when driving normally at higher speeds, it is not very likely that it is due to bad rotors. Listen if you can hear any strange noises from the power steering pump when the car engine is running if so, you may have a faulty power steering pump. I replaced 4 new spark plugs set the appropriate gaps. Does my 2001 Mercedes need Motor mounts? Are you saying the jerking occurs when you hit 3,000 RPM? Any Suggestions Thanks in advance. Long story short in my experience spark plugs can be a reason for misifing in a VR6 even if the first mech didnt install the new ones right. Once you have the code, you should be able to narrow down the possible problems quite a Hi. Next time I am just going to buy the remaining six COP's and replace them myself, so that they will all be new. Theyll be able to diagnose the trouble code further in order to pinpoint and fix the issue. I notice this most when I am in traffic. Blocked Fuel or Air Intakes. The older the truck gets, the more often it shows itself when feathering the gas between 45 and 55. . This will cause your overall driving experience to feel rough and you'll likely be bouncing a little bit in your seat from it. Over time, your car tires lose balance, causing vibrations. The fix: Check fuel pressure with a fuel pressure gauge. My car is lean on bank one and two. Kind of feels like you're driving on a very rough roadit happens when you're driving around 35-45mph with your foot barely on the gas. Please see our. There's a myth that diesel doesn't burn, diesel does burn - one of the major differences between diesel and petrol is the way the two fuels burn.If the vehicle exceeds 6 mph (10 km/h) in the forward direction, and Reverse (R) gear is selected, the EAT ECU switches on the low clutch timing solenoid valve in the valve block, which drains the fluid from the reverse clutch.May 24, 2018 . Rough Transmission Shifting: I Recently Bought a 94 Lincoln Town please update Im facing the same issue. Hi I have an issue with my toyota belta when I press on the accelerator paddle the car jerks for a while and becomes stable during the third gear upwards. Ive got a 98 Dodge Dakota V6 automatic, when driving it randomly jerks usually around 50 or higher. It could be some weird transmission programming or it could be an issue with one of the internal components in the transmission itself. Don't notice any issues on the highway. I have changed plugs, maf sensor, leads, coil pack and its no different, any ideas to point me in the next direction would be greatly appreciated. If you find anything inside the tank, clean it with the help of a cleaning kit or with some other equipment. It can also happen due to misfires caused by worn ignition parts. I had the Plug and nusel changed a few months ago and the mechanic said there were no shavings in the fluid so the transmission is good. So I paid to have them replace. Ive got a Nissan Versa Note that only jerks from a dead stop till I get to about 30 or 40 mph at higher speeds on the highway it will start to fell like it is hesitating, any thoughts on that? Shudder or Vibration While Driving at Speeds Between 35 and 40 MPH 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. Was Told Why Is My Car Accelerating Slowly? Worn wheel bearings and loose steering components are closely linked and have similar symptoms. No expense things to look at would be to see if any moisture is in the plug area and that it has plenty of dielectric compound between coil and plug. You also want to be sure what is causing the problem before you continue driving the car. On colder days, condensation can form under the distributor cap. I had the injectors and throttle cleaned. Hi my name is Christyshow I have a 2012 Honda Accord and Im having similar issues with my car. Alternatively, theres a chance sediment from the bottom of your fuel tank got sucked up and it may be clogging the fuel filter. But once the car is brought up to highway cruise type speeds, a few cars are still triggering the CEL along with P0171 & P0174. I took it to the mechanic's and he found and fixed a leak in the intake manifold. My car started shaking while driving and hitting 40-45 mph. Car Dies While Driving: Reasons, Symptoms, Fixes & Costs - Motor Verso That would be a great place to start. 2013 Hyundai Elantra Runs Roughly, Shaking And Vibrating P0138 code definition O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) What the P0138 code means P0138 is the OBD-II generic P0412 P0412 code definition Secondary Air Injection System Switching Valve A Circuit Malfunction What the P0412 code means P0412 is an OBD-II generic code that the engine control module (ECM) got input from the air injection system driver that the P2158 P2158 code definition Vehicle Speed Sensor 'B' What the P2158 code means This trouble code indicates that the powertrain control module has detected a variation in the reference voltage of the vehicle speed sensor 'B' in reference to the Computer shows misfire cylinders and timing advanced banks codes. But don't worry because this symptom also has a solution like other car problems. When in 5th gear at low rpm (below 2000rpm) and I stomp on it the car bucks bad (check engine light also comes on). Air filter tune up this and tune up that. Helppp, Any update? 8 Reasons Your Car Is Shaking While Driving & How To Fix It - Mechanic Base You may need a new EGR valve and other EGR components. Shut the engine off, even just long enough to fuel-up, and it starts up and runs fine again in every respect. Once it starts if I let off the gas or give it more gas it goes away. I dont see how a bad radiator or thermostat would cause the issues youre describing. What's happening?? Car runs rough after prolonged hi-speeds When this occurs the fuel system will need to add more fuel to keep the air-fuel ratio in balance. 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. If that were true, then that manufacturer would tell owners to use premium fuel. My car is that noisy car in the drive thru. Hi I have a 1998 Honda Civic coupe dx my car keeps jerking at a speed to 30mph to 40mph and my car does not pick up the speed until about a good 20mins and still doesnt accelerate like its supposed to and cuts off in the middle of driving my car I put a new radiator in and I put new spark plugs in it and it just started to act like that after I drive from Marion to Columbus I got there and I went in the store and come back out try to start it it started but cut back off then I started it and I put it in reverse remind you my whole car is jumping engine is jumping crazy before i got there it was fine and it was fine when I purchase it 2 weeks ago then outta nowhere its been acting like now and only had my car for 3 weeks now.