High rev on startup

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August undefined, 2024

WebMay 1, 2011 · 2003 Mercedes S320 CDi (W220) Joined Apr 17, 2009. 340 Posts. Discussion Starter · #3 · May 11, 2010. Hi and thanks for the quick response. I would be happy with +-1000rpm on startup - think that is about what it was. Car is warm at the moment, just started it and it went to: Neutral : +-1500. as it engages : +-1800. WebJan 2, 2024 · My 89 F250 4.9L with a 92 ECU will rev up to 1800RPM for about 10 to 20 seconds then drops down to normal. When I start it, I pop the gas pedal once just after it …

Engine revs up upon start up Nissan Frontier Forum

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Instant high revs on start up = damage? - Honest John

WebHow to STOP Honda engine High Idle revving surge at COLD start up, Its NOT IAC Wise Monkey 5.58K subscribers 29K views 2 years ago Honda 4 cylinder engines are made to … WebAug 7, 2024 · It's quite normal for Fans to go metal at startup, since there are no drivers running when booting. But usually, they will go down after a few seconds when reaching the login screen. But we have to dig deeper a bit i guess: Will they be on 100% for several minutes while your pc is in idle? Have you checked your bios settings? WebJan 30, 2014 · Usually when an engine runs higher RPM than it is set for, it means extra air is entering the engine from somewhere. Using a spray water filled bottle, go around seams and also spray vacuum lines and the EGR pod while the engine is running. Any openings will draw in the water and affect RPM. Then you will have found the leak. bitesize apostrophes ks2

High Rev on start up question - Ford Truck Enthusiasts Forums

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WebMar 7, 2009 · Maintenance Shop - revs high on start up - I was wondering if anyone knows why my truck always revs high on start up no matter what the temp its over 2000rpm for … WebOct 15, 2014 · On startup, the RPM will climb up to 2,000 and then idle back down to around 6oo. It doesn't matter if the engine is hot or cold. Engine is the 4.7 in a '99 Could this be a … bitesize animal farm historical figuresWebDec 7, 2024 · On the second start, it will rev up again, but not nearly as high, whereupon it may die or continue to run. If it does die, the third startup typically doesn't cause a rev up. Once running, the motor has a stumble / cough / miss every 3-4 seconds. Once off idle, that cough seems to go away. bitesize an inspector calls characters

"WebApr 30, 2009 · Anyway Hd that are injected start at high RPM and after heating up the idle kicks down. You have a Temp sensor for this, which sounds like it is bad. I can not believe … " - High rev on startup

High rev on startup

WebJan 18, 2024 · The reason for the high RPM on startup is likely excessive air, either from a throttle body or other intake leak, sticky TB or IAC, or the PCM thinking that the intake air and/or coolant temperatures are ridiculously low, thus adding steps to the IAC position. WebMay 11, 2024 · A car could have a high idle at startup for a few reasons including to control for emissions while the catalytic converter is warming up to operating temperatures or to …

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WebSep 6, 2024 · This seems excessively high for a cold engine start when the outside ambient is over 60F. It also makes it very difficult to back out of the garage without power breaking … WebMar 12, 2012 · High rev on startup. Hey guys, Recently when I start my truck when it is cold it will idle up to around 2000 rpm, then immediately drop to around 1200 rpm. Before this …

WebMay 5, 2024 · The only thing that has worked is after booting, is to log into windows then shut it down through the start menu. After that to leave it off for 30 seconds then boot it … WebMay 18, 2014 · This was the start of my idle issue. My RPMs would be high and not come down to 750 and would hang high between shifts (manual trans). I changed the AIC (thinking I screwed it up with the cleaner) and this helped a little, my RPMs come down to 750 now but it takes forever to do so. Now at start up it will run at 2000 RPM for a while and come ...

WebDec 22, 2009 · At startup, it starts normally and then will rev up to 2000 RPM and slowly rev down to around 700 over the course of about 2 minutes. Sometimes it's slightly rough. Once the motor is warm it idles normally. I'm thinking this is sensor related. MAF or O2 but I'm unsure, whatchu guys think? F FSWerksVP Registered Joined Aug 23, 2000 24,824 Posts http://www.fordrangerforum.com/4-0-sohc-4-0-ohv-tech/57093-rev-startup.html

WebSep 25, 2012 · The problem is when I start it, it revs too high. Only does this on start up and runs good otherwise. It revs up to @2300 and stays there for a couple seconds, then drops to around 1300 or so for a bit when cold, then down to around 750. If its warm or hot it revs up to @2300 for a couple seconds and then down to 750.

WebApr 30, 2009 · Harley Davidson 2003 FLHRCI; Motor idles at 2000 rpm on start-up. Runs rough for about 10 miles, then starts to run right including proper idling when stopped. Turn engine off for gas, whatever, the problem starts again. Checked the crank case sensor, it was covered with oil. Not being a mechanic, not sure if this is normel or not. bitesize andy goldsworthyWebJan 2, 2024 · My 89 F250 4.9L with a 92 ECU will rev up to 1800RPM for about 10 to 20 seconds then drops down to normal. When I start it, I pop the gas pedal once just after it starts and the engine will drop the high idle. I think in 91 or 92 Ford started to make these engine HIGH idle like that as the older ECU (89) did not do that. bitesize andy warholWebJan 28, 2011 · High revs at startup while it's dry up where all this stuff failed. Ford says this type of failure can be a result of using 3rd party oil filters (fibers break off and clog things) … dash of color mercedWebFeb 19, 2009 · It does not sound bad, i get around 1200rpms to 1500rpms on start up, and slowly drops while warming up and will drop when you put it in gear and take off. I am … bitesize an inspector calls themesWebDec 9, 2006 · 2) The high cold start-up RPM is due to your automatic choke doing probably what the Toyota engineers designed it to do. 3) The higher RPM is required to burn up the … bitesize ancient greeks clothingWebApr 13, 2009 · increase the catalyst temperature at cold start to reduce emissions. However if you are getting engine knock at cold start you may want to take it in and have them … dash of class platinum entertainmentWebNov 3, 2013 · No it just revs up kinda high on start up then runs mostly normal for the rest of the time. However, I was going through a parking lot earlier and I took my foot off the … dash of color oconto falls