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Your car most likely has an automatic transmission. If you're noticing the rpms going up and down it is because your automatic transmission is using its torque converter. it uses the torque converter to get the transmission up to speed with the engine and then it locks but when the torque gets to be too much for the engine it unlocks and speeds back up again.
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∙ 14y ago
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Why are your RPMs high and your speed low with your 2003 VW Jetta 1.8T manual tranny?
I gotta go with clutch on this one. Eventually, your RPMs will be high and your speed will be none. Have this looked at as soon as possable. It's a pretty big job but worth it on these cars.
Why does my 1992 Cadillac shakes at high speed?
It is a piece of Junk
What causes a 95 Cadillac STS to overheat the thermostat has been replaced and it only runs hot at high speed?
Microscopic crack in the head that will open up at high RPMs, subsequently jettising the coolent and overheating the engine. Have the heads X-rayed, than have a good aluminum welder weld it.
Why do cars have over drive?
To improve fuel economy- allows engine to operate at lower rpms after speed has been established Overdrive= low power, High speed
What makes an automatic engine sound like its in low gear at high speed?
theres no specific sound it all depends on your RPMS
What is better low or high rpms?
lower rpms use less gas higher rpms have more power
What makes a car have no power at slower speed but not at high speeds?
Probably a matter of where the engine's power band is set out, or you may simply be bogging the engine down at lower speeds. Try downshifting and keeping your RPMs up a little.
How high should i rev the engine for daily driving on a standard 2002 Honda civic 5 speed?
3-4 thousand rpms
What is the use of an overdrive in automatic transmission?
Its basically just an extra gear. When you use overdrive while cruising at a high speed it lets you stay at the same speed with less RPMs, which saves gas
What does it mean when you car overheats at high speeds and when stopped rpms go up and down while in neutral?
check egr valve
I have a 1992 cadillac seville. when i start the car it idle high and will not come down?
First you must check the ISC motor ( idle speed control) operation. Its located by the throttle body. It controls idle and high idle speeds. Good luck
What would cause 4 speed manual '86 S-10 to buck and lurch violently at low rpms but runs fine at high speed?
If you have it in too high of gear and traveling at a low speed the starts to die and restarts because it is a manual transmission, all you have to do is shift to a lower gear.
