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Fluctuating RPMs while in a set gear can be caused by various factors, including a malfunctioning throttle position sensor, vacuum leaks, or issues with the fuel delivery system. Additionally, problems with the ignition system, such as worn spark plugs or ignition coils, can lead to inconsistent engine performance. Lastly, a slipping transmission can also cause RPMs to rise and fall unexpectedly. Regular maintenance and diagnostics are essential to identify the root cause.
What else can I help you with?
What would cause a car to bog down then run smooth?
what would cause my car to run fine when it has first started up then after a while first gear will kinda bog down.
What would cause a growl while in gear?
it,s the bearings or a bad gear.
What would cause a manual truck not to down shift into 3rd gear?
bad synchronizer
What would cause 4th gear to stick on a 1989 Ford Ranger?
sycronizer probably going out since that gear is primary when gearing down from 5th
What would cause a truck with a manual transmission to stall when slowing down to a stop?
vehicle is still in gear, step on clutch
What would cause car to stop when you gear down?
This is called stalling. It occurs when the gear-shift doesn't change gears correctly because of changing on a bump (train-tracks).
What would cause a squealing sound after prematurely grinding a manual transmission truck into gear while accelerating?
main shaft bearing
What would cause a 1997 Cobra Mustang to jerk while driven in any gear?
You could have ignition problems if it is the engine causing the jerk.
Why would your cars RPM's drop down to nothing while driving on the highway and on occasion cause the car to stall?
Does your car have overdrive? Does it stall when going uphill? If you answered yes to these it is possible that your transmission kick down isn't working.The kickdown basically detects when the car becomes under load and shifts the transmission down a gear.
What makes car stall while in gear?
A problem in the fuel line could cause it to stall. On a stick shift, letting off the clutch too soon would cause the vehicle to stall.
What would be the cause of a 1997 Plymouth Grand Voyager to die after shifting it into gear?
A transmission that is sticking would cause a 1997 Plymouth Grand Voyager to die after shifting it into gear. A problem with the ignition system could also cause this.
What would cause the passing gear to fail at 40mph on a 1991 Toyota 4X4 pickup truck and could this be the kick down cable?
Kickdown cable needs adjusting.
