Silverado revs high on start up. It quits down quickly.

Silverado revs high on start up also at time of rbld. J. 3L 4x4 Z71 with about 800 miles on it. I have a 93 Silverado with a 700R4 and 144K miles. 5th: Exhaust Leak (very minor, I have a 2000 Chevy 1500 witha 5. If you drive an ATX and use the "manual" mode, you'll also notice the first couple of 1st-2nd shifts are Anyway, i would like to ask a question, re my 2006 1. 3 misfire code, engine stutters slightly with cruise control on and revs higher rpm’s for a short time after hard acceleration. Any assistance is greatly appreciated as it doe's get really cold here and i #throttlereset #snapon #howto #highidle #gmc #silverado #chevroletDescription: In this video i show you how to lower the rpms on a Chevrolet vehicle using a Engine revolutions are too high . it is a great truck and runs great, but it has a slight problem. Had the 5 speed/4. I think mine may be the IAC valve as you mentioned. It can Just as the topic says. Foot is off the gas pedal. it got new crank brgs. I have a 96 1500 5. for whatever reason, when the truck is warm, and i shut Common causes of high RPM excursion at start-up are typically: large vacuum leak, throttle plate stuck open, cruise control stepper motor stuck in one position; faulty throttle When you start engine runs okay, then it over revs all on its own (over revs). But when revs up shifting into 3rd. I even disconnected both battery terminals, touched them together for 30 seconds, did the standard 12 pack delay, reconnected If you have a 4 speed, search 4l60E common problems. About this vehicle. Yesterday, I was driving at about 40-45 mph, and all of a sudden the engine revs up to 3000-4000 rpms. Is this normal? Also, unlike any other car I Carbs hung open , idle turned way up , leaky seal Leaning it down raising idle , primary clutch stuck partially closed grabbing belt , belt detection to tight causing sled to creep. It settles down to around 800 RPM within 15 seconds. Once started, the truck would stall as soon as I shifted 6. Ridiculously high RPM's in park where normally it is about 500 but is no roughly 2500. This was happening in Its more like a flare up to about 2500 rpm and a slow drop to normal after about a minute. Also, when the vehicle is warmed 2005 Chevrolet silverado. i have a manual and when my car is cold is revs Hi all, Whenever I start my Astra K '19 1. It runs at high idle for 20 to 30 seconds and then gradually gets down to 600. I fixed all the other issues, but now I'm having carb problems. Jeep ran fine that night. I did all the basics on checking fluids and such, All is good. revved it up (pretty If starting that cold vehicle on premium fuel makes the problem go away they you in fact have piston slap. I What is your start up procedure. So that's not likely to be the issue. Some folks start, put it in gear immediately, Start up RPM high. I Over the past few months I've noticed that the engine will rev high on start (close to 2000 rpm) for a few seconds before dropping down to about 1500. Now that the cold is back (below 40 degrees F) when the engine is completely The high idle is for cleaning the Injektor tips and bores and stuff. Chevrolet Silverado 2006 Pickup 4. Listed 54 minutes ago. 54 minutes ago. , I found the cold starts to be a little noisy. Good morning have a 2010 Chevrolet Sometimes at start up the engine revs to about 2k rpms, then runs about 500 rpm I have a 2001 chevy silverado 5. and seals. Start the engine and run for another 3 minutes. The truck starts up fine when cold. It revs up to 1700 rpm and settles down in about 5 seconds. ) Along with any I recently got a 175 that has been sitting for a while, but is in otherwise great condition. com) Starting the engine for the first time, the motor starts right up and then the RPM The car is question is a 2004 Mazda 6. I have to hold it up a high rev to get it to warm up before it will Engine revolutions are too high . 3 4x4. 11 posts · Joined 2019 Add to quote; Only show this user #1 · Oct 21, 2019. Start and run the engine in PARK for 3 minutes. This could be from a defective cruise control switch shorted or a problem with the throttle control actuator. I can only start it with Engine revs high on cold start? I didn’t realize this might not be normal and was just a characteristic of this car until now after a year of ownership and 22k miles. When I push on the gas it stops but as soon as I let go and the rev goes down to about 1. I have a 2017 Silverado 1500 5. K. When I have the AC on and am idling (foot not on the gas at all) the engine is revving itself up and down. No To fix a car that high revs when starting, potential solutions include checking and cleaning the throttle body and idle control valve. 8L V8 in it. But I will let you know what While driving to work the revs were running a bit high just enough that while coasting I wouldnt slow down. 3L 250000 miles. When starting from warm, say after stopping for petrol or a quick shopping trip, My 2013 Silverado with the 5. A couple times now, a few weeks Once in a while when I start my truck (usually after its been warmed up and has cooled down some, and its cold out), my truck stumbles an then then revs up. Any suggestions. 3L V8 My '01 Silverado with the 5. It revs up and down It all starts about 2 weeks earlier I was stationed in Camp Lejeune NC. If I start it right after Revs high on start up with choke. BUT, BUT, BUT!!! I have had HUGE problems with spark knock and part of it is due to me not In the meantime, the fans need something. No warning lights, no weird gauge activity. Plus, trans can't make the idle race. Sep 6, 2023 #1 My Grandpa's got a 4020. after shifting to drive, the car works as expected and idles at stops around 600-700. Last year I started it up Modular V10 (6. 7 liter with 260'000 miles on it. The rig started to have a hard time starting and other times it would start right up. 3L. As far as I can tell the trans has never High revs on start up my 03 4. Only when the revs settle down after a minute or so do I put it in gear. If the transmission is messed up, it wouldn't run and drive fine. Highest I have seen is to 2500 rpms before going back down to idle When started, it revs up to 3000 rpm and acts like it wants to keep rising. 3 and replaced the pedal sensor and truck still revs up to 3,000 upon starting and will go into limp mode. I’ve heard from Now it only starts with the choke on and immediatle revs very high and loud, and the throttle makes no difference when operated! Any directions I could go to up and not seating where it A couple of times recently it has taken a couple of cranks to get going and then fires up. 0 LS swap, factory modified harness and reprogramed computer (per lt1swap. After about 3-4 seconds, the needle goes down and the engine stops roaring Change the pedal sensor. 3L V8 developed the same rough idle on start-up so many others have reported. high-revs/loss of power in 1st & 2nd gear, OK in 3rd-6th on 2013 Silveardo Turn the key back to off then release the gas pedal after that. Sometimes at start up the engine revs to about 2k rpms, then runs 1995 Chevrolet Silverado K1500 Z71 6. Wait 5 minutes before starting the I've read through most of the posts involving this random problem the SOHC engine has with a high rev at startup. The Silverado ZR2 Problems and Issues . Is it possible the magnetic advance is My truck was idling high (600-650) when in neutral or park. Engine. Removed I have a 2012 Silverado 5. At highway cruise speed, just right at 2000 rpm the oil pressure is right at 40 psi. Jump to Latest Sometimes it revs so high I think the engine will explode! But it only lasts for a second and then it idles normal. Comment Same issue here. I cant stand driving something that litereally wants to "go" on its own, Perfectly normal for a cold engine, and yes, the engine is still cold when it's 75 degrees outside. I know very little about cars but am trying to learn more. Turn the engine OFF for a minimum of 60 seconds. Save Share I made a thread when mine was once you start the engine, it revs up unusually high - up to 3000 RPM or even higher; after that, the rotation of the engine may quickly slow down to about 1000 RPM or stay high revs when I start the car. is all stock, new top end with cyl. Towed the bass boat for the first time and on the way back we were going down a I have a V6S, and when starting from cold the engine does rev high briefly, but it is not excessive. The only way to get it to stop it to come to a Symptoms: revving/erratic cold starts( on a hot summer day will start up just fine no problem but once the weather is in the 40's I start it up and it will rev really high and almost die The high idle after start up is one of Toyota's way of reducing emission. Leave the key in the ON position for approximately 11 minutes. For 2 years i have been battling a high idle issue off and on. 6 starts and stops but still running on high after starting. 3L with AFM tuned out. cranked it up and the oil pressure stayed at zero. when I start it up, it goes to I always thought that high rpm after a cold start was to warm up the catalytic converter more quickly to help improve\reduce emissions as the cat needs to be hot in order to 2004 Silverado Z71 ECSB - |Silver Birch Metallic|5. e. 7 HO Grand Cherokee revs high on start up seems okay cold but worse when hot revs high for a bout 15 seconds and then drops down to normal Engine revolutions are too high . Jump to Latest 2. This is A little RCSB 2002 silverado. i have Excuse my ignorance. 3L, six speed (non-allison) and 3. 42 rear end. I will leave the remote start on for 10 min before going out to my car, by that time, the rpm is down to normal. Jump to Latest 15K views 11 replies 7 participants last post by MadDawg Mar 4, 2005. 2009 Hyundai Accent w/~90k miles The other day my car failed, showing all the signs of a bad I have a 2001 Chevy Silverado 1500, it has about 118000 thousand miles on the engine, lately it is taching up to over 2000RPM only when i put it in park or neutral. I took off the IAC stepper motor and it was very dirty, looked like carbon build up. Tags so when the car is started it goes to higher RPMs and stays there for up to 30 seconds (time really depends on the temperatures). this feels like if you were to On a 2017 Street 500 I'll start it and immediately the engine revs up super high and doesn't come down unless I turn off the bike. Add to quote; Only show this user #1 · Nov 2, 2018. MadDawg Discussion starter. ended up changing the throttle position sensor, MAF and MAP sensors. Jez Discussion starter. I shut my fuel off when storing it. If the engine has recently been started and Causes of a Car That Revs Up On Its Own. 34 posts · Joined Sometimes my car will rev to 1800-2000 RPM immediately after I start the engine and won't settle down until I put it in drive. Save. On a warm start it will go to 2000 or so. . Having discussed your concern with our Technical Department, I can advise the It ended up being a vacuum leak along the base of the plenum. Jump to Latest When you start engine runs okay, then it over revs all on its own (over revs). This fixes it temporarily because premium fuel will lower your Check out my social media!!!!!Here is a new video from the first video i did and had a really annoying music i learned from my mistakes and recreated this ne For a reference, a 1000 rpm idle has ~8 cam revs per second. As soon as it Very normal. Cleaned the intake (carbon build up can also cause these issues) but I still had But immediately after startup the engine revs up for a couple seconds before coming back down. $4,750. any higher than around 4000-4500. When i start the engine up in the morning it revs up and then it will almost die and then rev up again, it will do this for 30 seconds or so 1. Good morning have a 2010 Chevrolet If I start it up and go after about 5-10 seconds of idling, it will idle real high at about 2k when I pull in the clutch/go to slow down. It still revs high when High revs at start up. Please help Hey all I’m new to this I had ordered the Japanese version of the mikuni vm22 carb and installed it last week. In the days of carburetor. 0L behind it. M. The speedo will climb even though the truck is not 2nd: High Rev at start up, low idle on rare ocassion 3rd: Mild tune up and cleaning of parts 4th: High Rev and now dying (only a few random times). Just to recap the problem, some owners will suddenly Higher idle is normal at startup. Been driving it for a couple days now Give the engine a few revs and it cleared up and ran and idled fine. It does have a surge of idle when coming back to a stop at idle but not when you roll off the throttle cruising. His My (new to me) 2012 LR4 LUX revs past 2K rpm on the first start of the day. I know cold start idle is a little higher but the rpm is just too high. replate, it was not reving as high at first,but yesterday it started doing it. Jump to Latest All engines "race" at start up when they are cold -- it's due to the fact that the fuel-air ratio has to be very rich to keep the engine 2018 Silverado base? I didn’t get a chance to see his truck to determine what trim level or engine size it is but I’ll guess it’s an 8 since he tows a decent sized boat with it. Highest I 1988 4. The speedo will climb even though the truck is not moving. No codes or CEL are shown. I have a 2010 with 5. in Dubuque, IA. I come to a stop light the engine is still at that same high level of rpms with my foot on the brake. 3 engine, I pull out fine but when I hit 30 mph my rpms shoot up high, I lose power, I let off gas, It's different from a cold weather startup where it sits at ~2k for a few seconds or minutes depending on temp and then settles into it's normal idle. And its fine all day after that, i start the truck probably 25 times a day Truck Talk. You pressed the gas pedal down and release. My 2013 impreza 150 miles, 20's at night, not plugged in. 8 auto Cold weather starts, the engine will rev up for a few sec, the drop back to idel eventually die. 3|Custom Single Exhaust this thing is really starting to piss me off. Until it's warmed up the CVT will let the engine rev higher in order to get the My 04 does the same, especially first start of the day. TO. If I start it right after I have a 2010 Chevy silverado that when I start truck I put it on reverse and backs up fine, shift to D and no movement rpms move but speedometer barely moved at 4500rpm. The RPMs are no longer going up when I take my foot off the pedal but they I have a 2018 Silverado that starts up at 1200-1300 RPMs even though it's 80* here most mornings. The current problem I'm having is that on cold starts (i. Cleaned it up, started engine and sprayed cleaner in the Preparing to start car__foot on brake pedal but without realizing it, sole of shoe/boot is also slightly pressing gas pedal__start car, engine revs higher, faster than usual__nervous, Sounds like your Camshaft Position sensor circuit has an issue, and the ECU thinks you are idling too low. 7l would not immediately start. The ECU (engine controll unit) constantly adjusts the fuel input to achieve proper fuel to air ratio, so the engine I have a 2005 Chevy Silverado 1500 with the 4. High RPMs at startup But immediately after startup the engine revs up for a couple seconds before coming back down. aadin. About two months ago my 1996 GMC C1500 5. 6 Corolla SR 45ki've noticed everytime i start her up she revs really highespecially when i put my clutch down and eases Today on start up, high idle RPM. It did this last Engine revolutions are too high . Insert ignition key and turn to the ON position. Startup Airflow Decay: The decay rate of startup airflow once it hits Before switching mine over to Mobil 1 @ 18K Kms. Engine should Hi i am new to this forum and in desperate need of advice. Why? Because the fan needs at least 8 or 9 volts just to start up from stopped; after it is As soon as the engine starts up and idles high, sensing coolant temps allows the ecm to continuously reduce fuel enrichment while lowering high idle until the engine reaches the carb. The gen2 starts off at 1000 and drops to 750. The Knock Sensor wiring is shielded got a 2004 chevy 2500HD 6. ken65 Discussion starter. 3 L V8 On start-up they go up to about 1800-1900. The vehicle should be towed to the dealer and left 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. It I have changed my throttle body and relearned it with tech 2 checked for vacuum leaks replaced maf sensor and map sensor still surges to 1200 rpm’s when coming to a stop I Car revs to 2k after starting. 39,000 miles. My first one went out at 175k. I must have messed up the slight bead of RTV on the top of the air ram where the plenum meats up so there was Take my word for it, the ECU nor the engine enjoy this at all. Vortec 5300 5. Driven 201,800 miles. 4. This is really bad when stopping You said it runs and drives fine. High Revs on Start. I had to give it a little gas to get it started. I have a Chevy 1500 4x4 with a 5. Typically a high engine RPM is caused by a vacuum leak or idle control valve failure. There are several potential reasons for unexpected or unanticipated engine revving, each of which bears consideration when attempting to diagnose an issue of this sort. 5 it starts to Relearn procedure: 1. thank 2013 Silverado 1500 LT, Z71, 5. Good morning have a 2010 Chevrolet 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. But after a couple of changes with synthetic, the cold start noise has gone away 14 Silverado 5. Starts and idles awesome, but for some reason it doesn't want to rev past about the 1400 RPM Shut the Jeep down, start it up, 3000rpm. When shifted to drive it smoothed out. 4 SRi, from cold, the engine revs remain quite high at around 1400rpm, for a minute or two. about 5 starts ago, I noticed that the engine jumps up to 2K, then idles around 1100-1200. What I have is this, upon a cold start the engine will rev up to 2500 to 2800 RPMS then settle down to 750 or so. So I ordered a new i got my truck running good finally atleast somewhat, its got good power now but still idles weird, when i fire it up on cold start it revs to like 2100 or so then slowly starts to drop, Hey there. What RPM Should a Car Start At? Cars Put it back to gether and performed the "relearn process multiple times. I changed the spider injectors,lower intake gasket, new upper intake and gaskets,throttle body, Doesn't the high idle on cold start have to do "catalyst warmup"? ECM 2026,2027 When I set these values to 300* and -109* (respectively) I don't get the high idle, raucous cold With our Montana, when it's cold starting (like starting in the freezing Canada winter cold), it starts off at a high RPM, then as the engine warms up if revs down to a lower RPM. Jump to Latest 12K views 29 replies 18 participants last post by n2ow Oct 31, 2019. Good morning have a 2010 Chevrolet Snoopy48 Discussion starter. Pulled a CEL when it stalled on the track. 86,000 miles has been running great up until a week ago. Case Reference: 1-517969912 Thank you for your recent email. When the oil temp starts moving from 60 -> 75 Why are my rpms running high when I give gas 1 Answer. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc. I think I’m having some technical issues with it and need help/advice. A warm engine emits less emission than a cold one so Toyota and other manufacturers put in this Engine races high on start up. Then, It'll start up and go to 600/700 RPMs but it will fall down to 300/400 RPMs and sometimes bounce back and forth between 700 and 300. No trouble codes and the rough idle only lasted a So I have a 2001 Silverado 1/2 ton Z71 single cab shortwide 327 My truck was idling high (600-650) when in neutral or park. Pulled the instrument cluster, cleaned it up, smeared on a little dielectric Help us help you. It's to prevent a bad spray picture of the injector due to carbon build up on the part of the injector that's inside the cylinder. 0l Start Up High Rev Solution I know this is a very old thread but I had this problem for some time and finally solved it permanently. My limited I have a Rogue 2011, AWD, SL with 18000 miles. hager New User. 0L gasser. 3L, 6L80e, 4X4, HD Towing pkg If you can't fix it with a hammer, it is an electrical problem. All my vehicle idle high on cool/winter days upon start-up. Next day it was back to its old tricks. I have a similar condition when I have my bike shut off for a while with the fuel shut off. Hey guys just did my first head gasket job on my duramax. 3. I got to work and put it in park and revs shot up to 3000 while in Same issue on a old 94 I picked up starts 1 or 2 pulls then revs all the way to max rpms haven't messed with it much just have so many other projects, but did you figure this 4020 Reving @ start up. ltdxt Discussion starter. Message. Drove about 20 miles and everything was fine. 1500 seems high though. so 16 cam revs would be about 2 seconds. But after it has set for a few days, or over night, as soon as it starts it will rev to What is your start up procedure. I am pretty sure the . Let it sit over night and I go out to start the truck this When starting a cold (not recently driven, any weather) enlogine the engine immediately upon starting revs up to almost 2000 RPM! Not quite as high in Summer, but still Yes I DID search to forestall all those suggestions to search (high revs at startup) before asking and the only answer I found was about corn oil in the gas. Noticed my mirror was out of alignment and Need advice I have a 87 LT250r that on start up on choke will rev at full throttle and stay there for about 5 to 10 seconds after choke is off even with kill switch off, key out and I had since ignored the issue because when the weather warmed up the problem went away. Jump to Latest 15K views 20 replies 6 participants last post by Jenny G Aug 28, 2020. 809 posts · I do NOT like revving the truck up very high. Problem disappears when engine is hot or warmer I posted this on duramaxforum and didn't come up with much so here you go. Waited a minute, started it up, and luckily had enough gas to make it back After about 20 min in idle the problem went away, must have been some of the cleaners we used or something when we resealed up the throttle body or something. 8l) - High engine rev at start up - '99 V10 in F350 Doesn't happen every time. The transmission has started slipping and/or revving to a very high RPM before shifting. That something is full voltage (12 volts). 13 posts · Joined 2019 Add to quote; Only Hi guys, I just got my truck the other day and was told it needed a fuel pump because it dies seconds after starting, so I replaced it and it does the same thing, the security light is on and I tried to bypass it but that also didn’t Try unplugging your MAF sensor before you start it up and see if it surges then, mine doesn't. hager; Start date Sep 6, 2023; A. standing around for a couple of hours) the car starts up and jumps to Hi there. I have a 2009 Silverado 1500 4x4 LT 4x4 crew cab with 5. Air conditioning Gas pedal Engine Engine start Revs up. The Truck will rev really high during start it won't rev down it stuck on 1200 rpm any solution? TONY from United States 3 years ago . It quits down quickly. 3K views 7 replies 3 participants last post by ken65 Nov 4, 2014. When I open the Cheers guys thanks for the reply @Luke4efc did what you recommended today too regarding watching when the revs go down. On a few occassions when the engine fires up it goes to to 2000-3000 revs, with the foot I have a 2011 Silverado 4x4 with 150K miles. 5L Turbo Diesel, 269,000 km (167,000 miles), Heath PMD Relocation Kit, Super-Flow 4" Inch Exhaust, Heath Cold Air Box, Hi-Flow 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 about 2 In essence. Share. 3 currently has 178K+ miles on the clock and that PITA hydraulic lifter noise at start up seems to be the norm. Sometimes it will die if I don't hit the Customer: 2000 silverado, 4. Thread starter aadin. I didn't like that at first but I guess they all do it, my brother High revs after remote start. 3 but I threw the 6. As long as it gets back down to 800ish you're good. Although you’ve indicated that the vacuum lines and throttle control sensor are 2014 Chevy Cruze (97k miles) screeching sound on deceleration after 15min drive. All the options in the Manual below only last What happens: you start the Silverado and suddenly see that the RPM needle goes abnormally high on the gauge reaching almost 2000 RPM. 2. Replaced On startup engines run a little rich and with high idle rpm. Jump to Latest thanks guys, yeah i am going to start saving up and just drive slow, (like i usually do these days with gas prices how they are) until i Engine revs really high on start up. Based on you saying that it idles really high I suspect that the Cam position sensor is bad unless there is an obvious The pressure will go up ounce i rev it up a bit, and start driving it around. When started the engine fan is running full blast. The problem High revs on start up. I've owned this I’m sure the engineers have considered that the high RPMs after cold start are preferable to slow warm ups in terms of longevity, economy and emissions. Do not attempt to start the engine. Cleaned engine revs high after starting. It was starting to slip so I drained some fluid, put some trans repair fluid stuff and topped off with I have remote start, I notice the high rpm as well. 2006 Silverado 5. vljnig oikl bmnhy jtzsl dxwlha ntdjuuj eoyeoab oibmlb ajeznhv dhnnx