High rev on startup

Author: jfmo

August undefined, 2024

WebMar 4, 2005 · The idle should never go above about 1200 rpm thru the IAC or idle up. A cold start at 2500 could definitely do damage to the engine. I still have trouble getting used to … WebJan 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) …

High Revs at startup TDIClub Forums

http://www.fordrangerforum.com/4-0-sohc-4-0-ohv-tech/57093-rev-startup.html 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 ... csc songs

Q: Car engine revs way up immediately upon starting engine. - YourMe…

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 … 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 … 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. cscs one day course online

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High Rev on start up question - Ford Truck Enthusiasts Forums

WebOct 11, 2005 · Discussion Starter · #1 · Sep 22, 2005. Ever since I got my CAI my car has had high hanging revs at start up. It goes to about 2000 RPM and then settles at 1400 RPM or so. Then SLOWLY goes down to the regular 600-900 RPM's, but it takes up to 45 seconds on a cold start up. So for some reason I decided to hit the AC button one time right after ... WebFeb 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 … dyson dc14 hepa filter removalWebDec 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 dyson dc14 hepa filter cover

"WebFeb 21, 2014 · Startup high Rev Been searching and reading, But there has to be a way to beat the high reving at start up.. Turn the key, Start, Varooom.. 1800-2000 rpm for a second or two. Then down to normal. Feel guilty when it is really cold out. There has to be a mod or somthing we can figure out. I have a new AIC. " - High rev on startup

High rev on startup

Nov 21, 2016 · 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 …

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WebNov 7, 2004 · 98 Jetta 250,002k. Oct 29, 2004. #5. My 98 TDI began experiencing some higher revs during startup and disappeared shortly after startup. I also experienced some power loss at highway speeds. VW mechanic indicated that the aging (but not worn out) belt stretched and created enough of a timing issue to cause those issues. WebSep 1, 2024 · 50 Posts. Discussion Starter · #1 · Feb 2, 2009. Newbie question on the 5.7l. Bought the 08 on Saturday and had to have a new battery installed. Now when starting the vehicle it revs to around 2,200-2,500 RPM then VERY slowly idles down. 2-3 minutes it is down to 1,800 RPM. Will this change after a few starts and it reprograms itself or is ...

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. 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 …

WebFeb 5, 2024 · It starts, revs up to like 1500 (normal) keeps it for half a second but then when you would expect the rpm to drop it jumps again to 2k 3k and the it drops to idle. Only … 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.

WebJan 7, 2006 · The high idle after start up is one of Toyota's way of reducing emission. A warm engine emits less emission than a cold one so Toyota and other manufacturers put in this feature to help get the engine to operating temperature quicker and thus reducing the higher emission that would have been emitted if the engine was still running cold.

WebApr 21, 2014 · Discussion Starter · #1 · Feb 1, 2010 Its more like a flare up to about 2500 rpm and a slow drop to normal after about a minute. I know cold start idle is a little higher but the rpm is just too high. Anyone have this issue?? I am thinking it is maybe a IAC valve issue. H Higgs Boson Registered Joined Feb 2, 2009 267 Posts #2 · Feb 1, 2010 normal. cscs online cardWebMar 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 … cscs one day training courseWebOct 20, 2010 · 4.7 HO still revs too high on start up. Even put on another new idle motor. That did not help. Seems to work okay for 3 or 4 days after having the PCM flashed but … cscs online bookingWebJan 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. cscs one day health and safety courseWebNov 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 … dyson dc14 hepa filter sealWebFeb 12, 2011 · The high rev is pretty much always present with a cold start. It is normally a combination of the idle air control valve and enrichment maps in the ecu. Once the coolant temp sensor reads that the engine is heating properly, the ecu lowers the amount of fuel it sends to the engine and the iacv closes. 1 - 8 of 8 Posts dyson dc14 hepa filter cleaning instructionsWebMay 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 … csc solutions columbus ohio