Questions tagged [rpm]

RPM = number of Revolutions Per Minute. Most commonly an acronym for engine crankshaft speed.

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Toyota Mark ,Gx110. RPM High

I am experiencing high RPM when I start the engine for my car Toyota Mark 2 ,Gx110. 1.What case this to happen? 2. How will I solve it? Regards, Jeccy James
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High Rpms and loud reving sound

I have a 2008 mercury sable. Its an automatic. I was in stop and go traffic this morning on the highway and I went to accelerate and the Rpm shot up as high at they could go and stayed there and the ...
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Mazda Demio 2002 75HP 1.5 high engine RPM on idle

I am the owner of Mazda Demio '02 1.5 75HP (engine code B5E). The car has an issue of high RPMs (more than 1000 and hestitating) on idle. What is interesting here is whenever I press and hold the ...
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Benelli 600i - Hanging Revs when decelerating and idle surge but fixes after restarting the motorcyle

Having this strange issue lately where the RPM hangs when closing the throttle or drops slowly. The idle also surges to around 2k rpm. As weird as it sounds the problem seems to go away when I restart ...
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Hyundai accent rpm 600- 800 at red light

When i start my car my rpm fluctuate 600 to 800 Looks like it will turned off but not Engine is shaking
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51 views

Increasing engine rpm when AC on

I have Maruti Alto LXI 2004 model.Now it has driven 96000 km. When I drive on traffic with AC,the engine rpm increase as unusually. And also engine power is go down.... what can I do for that??
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RPM increase when refuelling

My 2007 Grand Cherokee - 4.7 L, presents the following issue: when I start the engine, the rpm goes to 1200, (as if the engine were cold as first start of the day), ONLY occuring after refueling. I ...
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15 views

Gauges not working on 2005 Ford Mustang

The gauges (RPM's, gas, temp and sometimes speedometer) aren't working. It's a V6. Is this a complicated and expensive fix? Thanks for any help.
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1answer
77 views

Vauxhall Astra rev/rpm go high when I put my accelerator down after changing gears

I have a 2006 Vauxhall Astra SRI 1.8. Recently I have been experiencing an issue where after I change gear and put gas down, the car revs and seems like little/no power is actually going to the wheels....
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33 views

Car shaking and almost stalling when stopping/very low rpm

BMW 318Ci e46, automatic transmission. This started happening after the alternator failed and got replaced. This only occurs when stopping with gear on and rpm drops very low. Absolutely no problems ...
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33 views

Highly steeped-hill with heavy car with manual transmission [closed]

So, there's this really steeped hill to access my grandfather's house. Accessing it downhill is not difficult by using first gear. However, climbing it is the difficult thing. What to do when you are ...
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1answer
62 views

Is 4000 RPM a normal rpm for a diesel school bus at 55 mph?

I have a Thomas 1991 school bus (36K gvwr) with a CAT 3116 engine and an Allison MT 643 transmission. I purchased it quite recently and when driving it on the highway, the engine RPMs are at 4000 ...
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138 views

Why does the RPM fluctuate when a vehicle is started for the first time in a day?

I've observed this in my car, and in the motorcycle (carburetor) that I had previously. When I start the car in the morning for work, the engine RPM starts off a bit high than the normal (+0.3 - 0.5 ...
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24 views

BMW 328i 2009 - RPMs Jump when it’s on reverse

My RPMs jump when it’s in reverse. Is this normal? But it stops after a while. I’m just curious.
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4answers
77 views

What constitutes gentle RPMs in the winter?

I drive a 2013 Fit, manual transmission. I shift by sound. When accelerating, I shift up when RPMs reach 3000. When decelerating, I have developed the habit of blipping the accelerator pedal to get ...
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118 views

Why my car RPM goes up while Parked

Please help. I drive a Toyota Spacio 2002 but after driving for a while when I change from drive to P (Park) the RPM needle moves up slightly and there is some noticeable change in the sound of my ...
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23 views

RPM drops to 1200 while driving

While driving 2004 Chevy HD the RPM without any warning drops to 1200. There has never been a backfire or rough idling,accelerates fine,shifts fine? I have to pull over and restart the engine several ...
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108 views

I20 rpm down to 600?

Hyundai i20 rpm down to 600 from normal rpm 800 or 850 rpm when idle. I have cleaned throttle body but still same low rpm. Please help it's emergency.
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45 views

Engine speed, vibration and rpm

I have few doubts with my motorcycle (Apache RTR 180 ABS version). When I ride on top gear I have noticed the engine vibration is reduced much when at 84-86 Km speed (RPM around 6400). I feel ...
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Engine not rev over 3500 after new ECU installed same number

I have Honda civic vtec 1999 with D15 engine installed. ECU/PCM reporting error and mechanic told me this computing having issue in IC I bought new ECU same number but after connecting, car engine ...
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Diesel truck at 40Mph huge “stall” and then kick

So I have an 01 Chevy Silverado and i have a little strip that i like to see how fast my truck can go 0-60. The problem is that when I'm accelerating, at around 40mph my truck "stalls"(like im pushing ...
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48 views

Random RPM boost

For the last week I've been having an issue with my RPM boosting highly for no reason. I drive a Peugeot 307 1.6 HDI S 90BHP. Whenever I shift from 2nd to 3rd and start gassing it up a bit moving up ...
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630 views

Aggressive car vibration at 1700-1800 rpm

So my girlfriend bought a used car, a Hyundai i20 2011. 1.4l 55kW diesel motor. She bought it with a guy who is a mechanic, so I was expecting the car to be OK. Once I got to try the car out, I was ...
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86 views

Why does my car keep having high RPMs and not speeding up over 10-15 MPH?

it’s done this twice in exactly a week and every time I take it to the mechanic the check engine light turns off and they don’t do anything. It’s a 2009 Chevy Aveo
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323 views

EPS failure, rpm guage failure temperature guage failure

My Nissan Sentra 2008 started having electrical problems. After a typical 25-30 minute ride, my rpm indicates 0 and my EPS light comes on with loss of power steering 80% of the time. Shortly after my ...
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89 views

VW Golf 2012 DSG auto transmission runs fine but accelerate very slowly with the D1 gear

A month ago, I changed my DSG auto 7-speed transmission's mechatronic because of another issue and after that everything was working just fine. Recently I found that when I start my car and switch my ...
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26 views

Impala's RPM bounce

I have a 2003 Chevy impala LS 3800 motor ... anyways, the RPM's tack will bounce while in overdrive and seems to be random at every time; It could be weeks on end but then it could do so everyday. It ...
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187 views

When braking RPM drops and radio cuts off (Sometimes when rolling down the window same happens)

I have a 2002 Honda Civic, it has been working great for many years until now. I have been having strange things happen: When I apply the brakes or roll down the window the RPM drops and my radio cuts ...
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34 views

Rpm gets drop in cng while changing the gear

I have a Hyundai Accent 2014 with CNG fitment. For 3 months I have not been able to resolve my problem as my RPM drops when I change the gear. I don't know what is happening with it. I showed to CNG ...
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53 views

Cannot hold constant RPM on Neutral with accelerator pedal

Having Chrysler Town & Country 2008 with 4.0L gasoline engine. Is it normal that i'm not able to keep engine at 2k RPM for 10 seconds? After some seconds, it just climbs itself up to 3k, but i'm ...
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167 views

RPM Lagging On Mazda 3 - 2008

i have mazda 3 2008 with auto transmission. after drive for 10-15 mintues the rpm get lagging. (when the lag start i lost a little performance on car :: pushing the pedal the rpm goes to 4000 but ...
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66 views

Why is this RPM graph squarewave?

'07 Subaru Outback 3.0R 5 speed auto. I am logging using the excellent RomRaider and was kind of surprised that when graphed RPM looks like a square wave in most situations, don't know if it was ...
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2answers
732 views

Low idle while on Drive - Lexus LS430

Today I noticed something annoying on my 01 UL LS430, The RPM rate drops to around 500 when I set the transmission to "D" along with a slight vibration and strangely. If i change that to P, N. or even ...
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1answer
650 views

Car rpm unstable when idling

Car's rpm keeps dropping below 1k an then climbs up to 1.5k and the process repeats and repeats. It happens when i turn on the AC but when i turn the AC off it seems to be more stable. Some people say ...
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624 views

Engine loses power at certain rpm once it gets hot

I have a Pulsar 220 which starts good but after riding few kms, engine starts getting too hot. Even the high temp and oil change sign starts blinking. There is no issue with engine oil. As I get it ...
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99 views

Motor RPM given car speed, gear and wheel radius

Reading about Tesla cars I found that they can achieve 16000 RPM, single gear ratio 9.73:1 and differential ratio around 8.28:1, but... if I try to get RPM from car speed (max 200 km/h): RPM = car ...
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351 views

Random drop in rpm during clutch down

I am using Hyundai Grand i10 petrol car. Recently i got fit CNG in my car. After CNG fitted i am facing a problem of random engine off at any gear when i pressed clutch. But it only happened if i run ...
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147 views
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1answer
75 views

What are the possible causes for the car to increase power by itself?

I have a 1993 Fiat Panda 1.0 i.e. (gasoline) with single injector. Last year it started to present a very specific issue: from time to time (but basically now it happens every time I drive the car) it ...
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start up issue when cold

need an advise please. When im starting the car from a cold engine, i need like 5 turns with the key before it holds the rpms. To be precise. It always starts up, but the rpms go down to around 300 ...
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2003 Ford Escape XLT 2.0L 4 cyl

My RPM's were staying crazy high ....4k-5k switching gears Throttle body was in terrible shape and clearly sticking. I had a new one put in along with a new IAC valve. Also found out my throttle cable ...
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2answers
4k views

Do rev limiters like the Bee-R Rev Limiter cause any wear on engine components?

Rev Limiters like the Bee-R Rev Limiter are used for the purpose of capping your RPM's so that your car will not rev passed the limit it is set at. The Bee-R rev limiter works by cutting the ignition ...
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2answers
2k views

Nissan X Trail 2001 engine RPMs increase, but vehicle does not accelerate, has no power

2001 Nissan Xtrail. After driving for more than 20 minutes, the car seems to have less power. The rpm will go way up, but the car is slow. Rpm can go near the redzone, yet I’m still driving at 10-...
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3k views

Engine revs at startup

Hi since a bought my car (used) noticed that sometimes when starting the engine it spikes the rpm to much. Is not big deal I know but I'm not sure if is normal because it doesn't always do this, ...
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jumping RPMs around 60-100kms when i push it harder , lower acceleration due to this issue

I've got a 2001 Honda Civic 1.7L 4cyl. engine with an automatic transmission. My issue with it is mainly I find when accelerating faster, like merging on a highway, if I try to push it until it ...
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1answer
75 views

2008 Chevy Cobalt SS: RPM struggles to go up and then it goes high

My car has the "esn" light on, and I have a traction control button and it reads that it's off and I need to service esn traction. I was wondering what that means. As for the rpm issue, I can hardly ...
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8k views

Can idle rpm increase or decrease on its own

I am curious to know if a vehicle's idle rpm will increase/decrease over the period of time of its usage.If yes why?
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Toyota Taco 06 2.7l 4c, Why are we having Ignition and idle problems after a head gasket repair?

We just replaced the head gasket and sealed with silicone and new gaskets. After our process was complete we discovered the engine idle would go from 1,000 rpms for 8 sec to 500 rpms 8 seconds ...
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317 views

Why do the RPMs slightly jumpy at lower speeds?

I have a 2004 Saturn Vue with the a 3.5L V6 that the RPMs slightly jumps between 20 to 60 MPH. Though if I place the vehicle on cruise anything over 50 MPH the RPMs stay steady (still very slight ...
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Engine RPMs increase, but vehicle does not accelerate, has no power

2001 Nissan Xtrail. After driving for more than 20 minutes, the car seems to have less power. The rpm will go way up, but the car is slow. Rpm can go near the redzone, yet I’m still driving at 10-...