High rev on startup

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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 … WebNov 25, 2024 · on November 25, 2024. When the engine is started for the first time each day, the engine revs way up, and the RPMs gradually go down to normal idle speed. If the engine has recently been started and the engine hasn’t completely cooled off (I.e, it’s been sitting in a parking lot for 30 minutes) it starts normally.

Q: Car engine revs way up immediately upon starting …

WebFeb 21, 2014 · You need to be sure there is not a fault because 2000 is a bit high. Try another IAC. Here is how cold start works. Key to 'run' computer looks at the cylinder head … 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 … ray on law and order

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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 … WebNov 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 … WebOct 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 … rayon lighting group

Why Does My Car Idle High When I Start It? - AutoPadre

High Rev Start Chevy Impala SS Forum

http://www.fordrangerforum.com/4-0-sohc-4-0-ohv-tech/57093-rev-startup.html WebJan 12, 2004 · Instant high revs on start up = damage? - SjB {P} Current petrol Volvos on the P2 range of floorpans are designed to rev instantly to a moderate extent on startup, to help reduce emissions and extend the life of the cat. My V70 typically spins instantly to 1400 RPM, holds for a second or two, drops to 900 RPM, then drops to the normal tickover of … rayon lighting rvc6WebJan 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. ray on law \\u0026 order

"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 … " - High rev on startup

High rev on startup

Higher RPMs on cold start up Subaru Ascent Forum

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. WebFeb 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

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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 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. 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 …

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. WebDec 9, 2006 · 2. When I start my new '06 Tacoma with the 4 litre (2.7 litre) engine, the engine starts and revs around 2K. This seems awfully high to me. Any other vehicle I have driven starts revinng from a cold start at around 1200 rpm. Like all vehicles, the Tacoma soon slows down to around 750 rpm. It is just the initial high revving that gets me concerned.

WebMar 15, 2010 · First start of the day, it would rev to maybe 1200 right after start, then taper off to around 800 which I think would be normal. Drive for a few miles, fully warmed up. … 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 …

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 …

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) … simply affordable finds facebookWebI'm Raul "Rev" Vaughn, an entrepreneur and high-performance consultant. I've founded or helped start over a dozen different businesses in five countries and helped introduce thousands of products ... rayon lights rayon lighting rep locatorWebApr 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. rayon lightweight maxi skirtWebJan 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. ray online quick personal loansWebMar 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 … ray online shopWebDec 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. ray online games