High rev on startup
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. WebMar 16, 2024 · Your car could rev high when you start it if you have a dirty throttle plate, or a dirty idle air control valve. The throttle body controls the amount of air that enters the engine and when it gets clogged, the fuel to air mixture is thrown out of balance and your … You can clean your car engine with WD40 without damaging it. Cleaning your car …
High rev on startup
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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 … 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 …
WebApr 17, 2013 · High idle at start is normal in cold weather. The colder it is, the higher the RPM usually go. Perhaps your car is overdoing it a little, but it usually is normal. especially if it drops back down after a little while (30 second usually. In really cold weather it might take a few minutes to drop to normal idle rpm. 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 …
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 then reverts back to reving high (2200 rpm) on startup. Has anyone else had this problem and what was the fix. 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 ...
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.
WebApr 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 … burmese myplateWebMar 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 … burmese music songsWebDec 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 halter top vs crop topWebSep 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. burmese mythological creaturesNov 21, 2016 · burmese music downloadWebApr 11, 2024 · In this detailed primer, he shares a framework for creating a 60-month bottom-up financial plan that accounts for early fixed expenses like R&D and marketing, which drive high burn rates during ... halter top wedding dresses modernbeadedWebApr 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. burmese near me