revving

Just cleaned up my air intake manifold, throttle body and replaced all my vac lines as was having a lumpy tick over/lack of acceleration. Now its the opposite. First it ran fine, took it for a quick slow drive down the road parked up turned off then back on and in park the revs were going up...

I've noticed a squeak or screech kind of noise lately whenever I accelerate so today I pulled in, put it in P and revved the engine and its coming after I rev, kind of like towards the end of the high revving. I've recently had secondary cats deleted, x-pipe and resonator removal at ACID's...

I'm driving a 2013 Mercedes Benz C180 Blue Efficiency.Just had this happen this evening after leaving a friend home. The car started to sound really noisy and when I checked the gauges I found that it was doing 25 mph and revving to 4000 rpm. And it didn't want to go much faster than 25! I...

Got the following error code on my 2010 W204 Cdi 2.1: P2454 - Diesel Particulate Filter Pressure Sensor 'A' Circuit Low. Cleared the fault and went for an Italian tune up, about ten miles at 3000rpm. All good, for about fifty miles but it's come back again. I guess I was hoping it was a DPF that...

The engine starts fine with smooth idle. When touching the gas pedal it does not respond. When warmed up everything works fine. Can an open air filter disturb the HFM-system? I needed to make the change due to lack of space for the original in my swap to W114 Coupe. /johannes

Hello, I have a c36 amg that I have been doing up. I believe the c36 is roughly the same engine as the 280. Car runs great with smooth gear changers, but under hard acceleration it only revs to 5200 rpm 1st gear, 6000 rpm 2nd gear, it never revs to the red line (7000rpm). Is this normal?? If...

Hi All, My 2000 W208 clk 230k has acquired a fault. When fired up, instead of ticking over as normal, it's revving up to about 2000 rpm then dropping back down to tick-over, as soon as it drops down it revs up again to 2k. It's as though the accelerator is constantly being pressed. The...

Hi all, I purchased a 2005 180k coupe sport yesterday. I have noticed that when the car is in Park, the car does not revv past 5k revvs. But when driving it does revv all the way to red as normal. Is this normal behaviour? thanks.

Hi, I've recently purchased a w211 e320 cdi and had it serviced 3 days ago at Mercedes. Since its come back it has a revving issue as if its in Limo mode. When I kickdown the car continues revving as normal ... it wasnt like this at all before it went to the stealership. I have googled...

Ok, yeah, I know it's rather uncouth, but .. it's good to be fore-armed (that sounds wrong!). When one has a V8 on a nice sunny day (remember them?) and an empty, narrow, echoey (is that a word?) tunnel, it is a little tempting to stop, wind down the windows, and give it some! Now while spin...

hello guys,wondering if anyone can help diagnose whats wrong with my car. its a c180 auto..basically when in drive but not moving with my foot on the break its ticks over normally around 500 revs but as soon as i try put it into park or neutral its revs right up to around 1500/2000...anyone know...

hi, i ve got a vito 108 cdi y reg 2001 model. The problem is it went into limp mode (i think). It does not rev past 3000revs, but it was still ok to drive. 70 mph max. Then a couple of weeks after that the revving slowed down and the van accelerates very very slowly. The engine sounds fine still...

hi, i ve got a vito 108 cdi y reg 2001 model. The problem is it went into limp mode (i think). It does not rev past 3000revs, but it was still ok to drive. 70 mph max. Then a couple of weeks after that the revving slowed down and the van accelerates very very slowly. The engine sounds fine still...

Hi folks, I have a 1997 c180. The problem is, the car is revving high, it goes to around 2000rpm then drops, it doesnt drop revs intantly it will rev for a short while, it only does this when the engine is at a warm temperature around 80'c. I have also noticed that when i rest my foot over...

Hello All, I'm in need of some urgent help. I've got a long journy tomorrow and the car has started behaving oddly. On startup the engine seems to be over revving but just slightly, about 1200 rpm, which it usually does when starting from cold before dropping down to around 700- 800rpm on...

When I start my car it seems to keep the engine revving high as if the throttle is stuck (sits on 1200- 1500). After a while it goes down to 800 and idles well. But on occasion it does this at random times, sometimes when I am driving and come to a stop, even though I am not pressing the...

i wondered if anyone could advise me as to the possible cause of my 116 revving and maintaing quite high revs even when its warm,if i boot it hard the revs drop but are still above what i would consider normal, they drop again when drive is engaged but it still seems high,all suggestions welcome...

High new here and need a little bit of help with a couple of things My C280 Sport 1995 over revs on cold start, maybe up to 2500 RPM & am worrying about damage to the engine. I have to put it into gear very quickly to drop the revs. It only does it during cold weather, it was 10c this morning...

Just started my beast(i have been away).When warmed up i revved the engine and it would not go past about 4500 revs is this normal?

I have a C270 CDI that I bought new in 2002. Initially in its first year, but only occasionally the car would lock in a gear when you step on the gas and it shifts down. You would then have to stop and turn off the ignition, then start again and it would be okay until it happens again a few...