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deceleration

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Question
My car jerks when decelerating from what seems to be 4th gear to 3rd.
You need to have the codes scanned by a professional with a scan tool for the transmission computer. The codes may give you an indication if the sensor is not performing correctly. If it is not a sensor malfunctioning (like...
Question
Whining noise. 1999 Chevrolet Tahoe
Hi there. If you are only hearing the noise in those speed ranges, then you may have bad overrunning clutch needle bearings inside the transmission. In this case, the transmission will need to be overhauled and repaired. If you would...
Question
The car pulls to the right upon deceleration
Hi. It should be a fairly simple cause. I suggest checking your tires for uneven wear because that is the number one cause of pulling next to an alignment being out up specifications. So have the alignment checked as well....
Question
Whirring noise at lower speeds
Hi there. If this noise changes as you accelerate and decelerate then most of the time it is caused by a failing pinion bearing in the rear differential. I usually start by checking the fluid in it to see if...
Question
Squealing when decelerating
Hello. Thanks for writing in about your 2000 Porsche Boxster. Most of the time this is caused by the pilot bearing in the rear of the crankshaft. When it fails it will make this noise at these times. I usually...
Question
Whisting noise when increasing or decreasing speed
There is a tensioner pulley that keeps the correct amount of tension on your serpentine belt. When these bearings wear out, they can cause this type of a whistling sound that you describe. This is a quick fix and should...
Question
2011 Mini Cooper Countryman jerks to the left upon deceleration
Hi. We will be happy to assist you with your 2011 Mini Cooper Countryman. The issue you are describing could result from a few possible things. It may be a faulty electronic steering control module causing the jerk. The steering...
Question
Shifting problems at high speed
My guess is that the overdrive relay or solenoid has failed. If either of these parts fail, your Volvo will not shift into overdrive. This is a very common problem on Volvos such as yours. A trained professional, such as...
Question
Van shakes, makes knocking noise - 1993 GMC G2500
Hello. You will need to find out if your engine is misfiring due to an ignition part like plug wires, plugs, or distributor parts like a cap and rotor or the module. If all the tune-up maintenance is done to...
Question
Engine hot, difficult shifting, shutting off
Hello there, thank you for asking about your 1987 Oldsmobile Cutlass Calais. A common problem that can cause stalling is a stuck torque converter clutch. This device connects the link between the engine and transmission, but should slip some when...
Question
Problem with speed. No check engine light on but when accelerating speed, it decreases then speeds right back up. No stalling at all
Hi, thanks for writing in. This is a common problem associated with fuel/air delivery which is very commonly related to what is called a mass airflow sensor. This monitors the flow of air intake into the throttle body as it...
Question
Car stalls during braking and deceleration
It is possible that the noise and "no power" symptom you experience is the exhaust pressure in the turbocharger of your engine being released. In some cases, an excessively rich mixture of fumes in the exhaust is ignited causing a...
Question
Stalling when slowing down, jerking, sluggish engine
You may have a fuel pump or fuel pressure regulator issue. All of the symptoms you described are possible with a faulty fuel pump. However, the more likely cause in this situation would be the fuel pressure regulator. The...
Question
Binding popping noise when decelerating without applying the brakes.
Hi there. To test the universal joints, press up on the drive shaft near the joint and see if the caps move around. Take the drive shaft and turn it back and forth and see if the drive shaft moves...
Question
My car jerks when decelerating or cruising in slow speed.
Hey there. This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to...
Question
My car gets stuck in low gear when decelerating
Hi and thanks for contacting YourMechanic. It sounds like that the low speed shift sensor has failed in the transmission. This is common occurrence to the transmissions in the Chrysler vehicles. I recommend replacing the low speed shift sensor and...
Question
Strange rattling sound from the engine when RPM goes down from 3,000.
Hi there. The noise that you are hearing is heat shields on the exhaust system are loose causing a rattling noise. Either the shield on the manifolds are loose or the shields on the catalytic converter are loose. If you...
Question
Clicking sound appears during decelerating. What could it be?
Hi there. What you could be hearing is the chain in the transfer case. If the chain has too much play, then the chain will rub on the transfer case housing when not under a load. Try going up a...
Question
Jerking during deceleration.
Check all of the driveshafts in the jeep and see if any universal joints are worn causing the shafts to move around when letting off the throttle. The universal joints in the front axles are the most common joint to...
Question
05 ram 4x4 Vibration in the floor during acceleration, and a vibration in​ steering at cruising speed that goes away when letting off the gas.
Hi there. This sounds like the tires on the front are out of balance and the ball joints are worn and need replaced. A out of balance wheel will cause the vehicle to vibrate and may change location to the...

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