Wrx jerking acceleration Why does my Subaru shudder? Engine Problems If you find that your Subaru is shaking, it could also have something to do with the engine. Factory 2. 5k-3k rpm the power like cuts out completely then jumps up RPM and then drops again, and it almost seems like it doesn't want to go past 3k. It feels like if I’m red lining at those RPMS and that the car wants me to shift. No codes showing up. Mar 26, 2025 · Car jerks when accelerating? Learn 8 common causes—from spark plugs to sensors—and how to fix them fast. Discover the most common causes of car jerking and what you can do to fix it. fuel pump. And it only happens under load. It is not a place to buy/sell/trade or spread negativity/hate. Seeking advice, if there's maybe some Apr 26, 2005 · But when I start out, even after the clutch is out and I'm accelerating quickly, between 2000-4000 RPMS it jerks back and forth a little like the thread starter said. and i just put an invidia up pipe on it stock tbe and intakenow the car is jerky. 1 MPa and then flutter up and down a couple of times when Jul 8, 2024 · So here is the situation I am running into. Out of the Oct 17, 2021 · Acceleration also seems noticeably more sluggish and noisy than usual, like when you're riding with a novice manual driver and they're slipping the clutch excessively. I had an issue with my car (2011 WRX STI) a while ago and just wanted to post what worked for me to fix it so that others can possibly search it in the future. Recently I've noticed a lag in acceleration and then a sudden jolt out of nowhere, no matter the gear or RPM level. I don't think its turbo lag because it is way more noticeable than turbo lag, and it's an on and off occurrence. 0L Turbo Powertrain Dec 10, 2008 · Hesitation/bucking under acceleration Service & MaintenanceWelcome to the NASIOC. Jun 16, 2017 · New 2017 WRX with some possible issues with acceleration and shifter? Newbies & FAQs Mar 9, 2015 · Bucking/jerking on and off throttle Factory 2. Please read the rules, they will be enforced. When it does Jun 4, 2025 · Have you ever felt that unsettling sensation when your car suddenly jerks or stutters while driving? This common issue is both frustrating and concerning and the large number of possible causes doesn’t help things. If I do gradual acceleration, I have no issues. I Dec 7, 2024 · I got a 2011 Subaru wrx wagon and just recently it started jerking during acceleration, it doesn’t happen until about 3-4k rpm and only at 50% + throttle. All that I have have not stock as of now is a spt intake and a muffler. Apr 26, 2024 · Why does my car hesitate and sputter when accelerating? A clogged fuel or air filter can make your engine sputter and your acceleration lag because the engine is not getting enough fuel or air, respectively. I tried cleaning the maf sensor and it stopped for about a day then went back. Here are 11 common reasons why this happens new '21 WRX (<1k miles) noticing a somewhat jerky acceleration at moderate RPMs from stop? Apr 26, 2003 · My 03 has a bad skip/surge around 3000 rpm's. Newbies & FAQs Sep 15, 2020 · 2017 WRX jerking accelerating in boost FA Series Factory 2. Dec 7, 2016 · So, when I do a hard acceleration I lose power when I reach around 4500 RPMS or so. Dec 15, 2021 · Driving your Subaru WRX with engine hesitation or slow acceleration is not only infuriating, it can also be dangerous when overtaking or when crossing an intersection. Learn practical solutions to keep your car running smoothly and safely. This is my first MT vehicle and first WRX. Mods in it is a Cobb sf intake, Cobb accesport with ots stage 1 91 octane tune and a custom cat back exhaust. com Subaru forum. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. It's not the boost kicking in. 5L Turbo) Aug 4, 2016 · Edit: Problem Solved. I've even tried a fancy K&N air filter- now my intake sounds as loud as my exhaust and while it still very noticeably hesitates/stumbles/bogs under heavy acceleration, it happens a bit faster. Mar 23, 2016 · I found the best results with a colder plug (stock) and just slightly undergapped, I put several small feeler gauges together to get it . No other Mechanic's Assistant chat Customer: I have a 2019 vehicle with 40,000 miles on it, and it started shuddering or jerking during acceleration. Under hard acceleration I get a shake/stutter from the car. Car Aug 10, 2025 · Car jerks when accelerating? This quick guide will help you troubleshoot the common causes and get your car running smoothly again. its Mar 28, 2023 · Learn what causes a car to jerk when accelerating, including issues with engine sensors, dirty filters, fuel and ignition systems, and transmission problems. I notice vibrations coming from the front end at times when driving aggressively. runs great drives great. 0L Turbo Powertrain Hate that my first post in here is about my car being a pain in the dick, because I absolutely love my WRX. The issue just started a few days ago. Originally I was getting CEL code P2097 and Subaru (three different dealers) all told me they didn't know what Aug 29, 2020 · [Help] 2017 Subaru WRX Bucking/Hesitation/Backfiring During Acceleration FA Series Factory 2. I’ve got a 2017 WRX that lately has been having acceleration issues. . Sluggish acceleration is a symptom of an underlying problem with your WRX, which must be resolved urgently before it does more damage to your vehicle. This issue began two days ago, and there are no leaks. May 25, 2009 · I have been noticing that sometimes when im in the low rpms around 1700 - 2000 rpms and im in 1st or 2nd gear when I lightly press the throttle to accelerate there is a hard jerk in acceleration and then it smooths out, sometimes its smooth as it should be. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications, mechanical issues, industry news, and more. I recently starting having problems. Jun 6, 2007 · I had a similar issue under acceleration, the car didn't accelerate smoothly at all under boost, I'd always feel little surges all the way to redline, in every gear. :confused: This problem normally occurs at 5k rpm but will occur sooner if I push it harder. It drives fine at highway speeds. My question concerns with coasting in 2nd gear between 5mph-15mph. Nov 2, 2019 · If your Subaru WRX is jerking when you press the accelerator, a few common issues can cause this. During acceleration above 15% throttle, sometimes in first and second and definitely in third-fifth, I get sputtering followed by backfiring. If feels as if something is clogged, or the friction discs are slipping if this even has them in the transmission. Im driving it no Aug 15, 2023 · Hey all, long time lurker first poster. It’s like it hits the brakes, and then a bunch of boost kicks in… Oct 17, 2021 · Jerky low-speed acceleration Jump to Latest 37K views 16 replies 12 participants last post by GeoMechanic Sep 19, 2025 Danno1985 Discussion starter Sep 16, 2020 · 2017 WRX jerking accelerating in boost FA Series Factory 2. when i accelerate and hit 2 Hey all, I might be overly cautious, but I want your opinions. 1st and 2nd gear seem to have no problems with accelerating, but once I shift to 3rd gear and hit around 3k rpm the car starts to violently shudder and the check engine light turns on. my problem is that when i put it to the floor i will get a chugging or jerking that shakes the whole car as my rpms climb. Dec 7, 2024 · My 2011 wrx wagon is starting to jerk when i get up to the 3-4 rpm zone when i have it under 40% + throttle pretty much stock other then a Cobb sf intake + a stage 1 ots Cobb tune and accesport, also has a custom cat-back exhaust Jul 1, 2009 · 06 WRX jerky acceleration (please look) Factory 2. Somehow, your engine’s power is not making it to the rear wheels. I have a 2018 WRX that has started jerking a 2,500 rpm. Apr 26, 2012 · Wrx sputtering hesitation when boosting. around 2. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. Aug 29, 2016 · So anyways I'm having an issue with my WRX. 5L Turbo Powertrain (EJ Series Factory 2. Finally got a WRX VB MY22 after owning a beloved Legacy for a long time. any advice? Landon 29 votes, 74 comments. I saw that this has been an issue with previous model years but has anyone gotten the stealership to remap the 2015? Or gotten Subaru of NA to authorize retention of the Jul 16, 2003 · the car will kinda jerk back and forth just a little bit when its pulling, 3rd gear is the worst and the bump is the worst at around 4-5K rpms. Help? Factory 2. Another issue is I'm new to wrx's and have little idea of what the problem could be. DIY steps + tools inside. wondering what kind of problem this is or if it is a problem at all. Nov 7, 2012 · I'm trying to get down the root of the problem. Registration is free, fast and simple, so please join our Sep 27, 2020 · I have all the sudden noticed extreme acceleration hesitation when accelerating from a stop, it feels like its hunting for gears and the programmed “Shifts” are hard like its slamming in to gear. By joining our community, , you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. As of yesterday, when I try to accelerate hard, the engine stutters, or if really pushed, will stall. Registration is free, fast and simple, so please join our Apr 15, 2016 · 15' WRX 2nd gear hesitation/jerk acceleration. happens in Aug 31, 2013 · ok so im trying to open up my car going up a steep hill i am getting a thing where when my foot is on the throttle at exactly the same position and the engine seams to cut out and then accelerate again more than once. It feels like it's coming from somewhere below the dash. 40000. It’s just under acceleration. I once had a COBB Jun 17, 2020 · You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. only mod is k&n typhoon intake. Read on to find out other possible causes and solutions. The weird thing is that sometimes it will do it and sometimes it won't. upgraded tmic 16g evo III turbo 565 pink injectors. Mar 5, 2024 · Hey guys I have a 2018 wrx with 85k miles. 0L Turbo) Hello everyone, I have a 2016 wrx with around 90k miles. This is an intermittent issue, so it doesn’t affect me 100% of the time. With a full tank it only happens after third gear but only when I'm driving normally. The car starts jerking back and forth like if gas is coming in and out. The whole car jerks, sometimes really noticeable Mar 14, 2010 · ok so i bought my 03 wrx like a month ago and i found out it has some modifications already done to it. This is for a 2005 Subaru WRX with 93k miles on it. it lasts from about 3 grand up until i shift, then it will stop. For the first 2 weeks of ownership the car drove great, smooth, and enjoyable. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and Sep 27, 2019 · Subaru WRX Won’t Accelerate Causes If your WRX doesn’t accelerate, but the RPMs go up, it’s usually not an engine-related issue. This is typically an issue related to the transmission Here are the most common cause of acceleration with the RPMs going up: Misfire You should be able to hear it, and it’ll likely be paired Jan 2, 2014 · Hello all, I am having the following issues : When accelerating in gears 3-5, the engine seems to sputter, as well, I can see the boost levels dipping while this is happening. Most recently it started last week 2019 subaru WRX 40,000 started shuddering or jerking during acceleration. I have a 2017 wrx, Under normal and hard acceleration mostly in 2nd and third gear. So far I am pretty decent with shifting and getting to the catch point of the car. This guide is built to help you get a better idea as to why your car is jerking. Probably 1,000 miles over 7 months. maby STI Oct 6, 2021 · I own a 2017 WRX with just shy of 60,000 miles. 0L Turbo) Hey guys I was letting my friend drive my car and he did the dreaded 5th gear pull, he said once he did it the car’s acceleration was super jerky and the idle is awful and took a while to crank over and start, oil level was good, no weird noises, no funky exhaust smoke, however my cylinder roughness across all 4 is lookin pretty bad. Are you wondering why car jerks when accelerating? It could be you have lousy spark plugs, a clogged air filter, or fuel delivery issues. I try to take it out once a week for about 15-20 mile drive. Jul 14, 2025 · Discover the 8 common reasons your car jerks while accelerating and how to fix them. Initially I was thinking there is a boost leak, then I was thinking wheel bearings are going bad, now I'm wandering if it's the clutch or driveline. 32 reactions · 29 comments Diagnosing jerking acceleration issue in Subaru WRX Summarized by AI from the post below Shatana Hopper-Starks Subaru WRX and STi Owners Group 16w · Public So based on my expert googling, I think that I either have gunked up fuel injectors or a fucked up transmission. 5k~ rpm it feels like the car jerks and snaps up to 3k It idles fine. I was going about 30 with cruise control on and started noticing the car was jerking on acceleration. My friend who was driving behind me said that he seen it backfire. No leaking Started 2 days ago. Does anyone know what this can be caused by? anyone have similar problems? Thanks! Jun 5, 2010 · Bad jerk/power cut during rapid acceleration. But Read on if you want. About a month ago I drove through a shit shit load of water. The most common reason a vehicle jerks when accelerating is a misfire. 0L Turbo Powertrain. Apr 5, 2019 · If your car jerks when accelerating, it can be an indication of several current or potential problems. When I’m accelerating in a lower gear the acceleration feels weak and bogged, then around 2. Checking for trouble codes can make the Nov 19, 2011 · just picked up an 03 wrx a week ago. But by understanding when the jerking occurs (whether during acceleration, cruising, braking, idling, or other scenarios), you can help narrow down the likely cause of this Sep 12, 2007 · Strange jerk when accelerating Newbies & FAQsWelcome to the NASIOC. It is most noticeable in 3rd gear at a medium to medium hard acceleration, matters not if it's hot or cold, but it does not do it every time. Spark plugs and the engine’s air filter could be I have a 2003 WRX with about 170,000 miles that has recently started to have a problem with accelerating. 001 under spec. From time to time my car would bog back/forth with hesitation and kind of making me sick Customer: I have a 2015 Subaru WRX with a CVT, and I've noticed that it jerks or slips during hard acceleration, but it doesn't do this when I accelerate slowly. Took it out of cruise and was driving normally. Jun 6, 2015 · Welcome to the . May 2, 2015 · Around 2500-4200 RPM, under moderate acceleration I will get a stutter in gears 1-3. The jerky acceleration is aggravated when the car is cold but Nov 2, 2019 · If your Subaru Impreza is jerking when you press the accelerator, a few common issues can cause this. Checking for trouble codes can make the [Solved] Surging acceleration, pulsing acceleration, jerky throttle, 02 sensor. I got it used from the dealer who had it as an employee car for 9 months and did 13,000KM. Generally, the turbo gauge will jump to nearly 0. 0L Turbo) Mar 4, 2025 · Discover facts, owner experiences, and recall information about Subaru WRX turbo problems to keep your ride running smoothly. When this is happening, the turbo is slow to spool, I feel periods of slow acceleration while the RPM climbs, and sometimes jerky/stuttery acceleration. Jun 22, 2016 · Hey Folks, Some recent developments: I had to go to the same dealer where I bought my ride (Puente Hills Subaru, PHS) twice and they gave me that typical BS runaround about how it’s “normal. ” How can it be normal when during acceleration a wobble shakes your butt like the car wants to dance Jan 12, 2011 · car bogging/jerking when accelerating Factory 2. Jan 11, 2012 · I purchased my 2007 WRX wagon a year ago and I have had a recurring issue with misfires or jerky acceleration. 0L Turbo Powertrain (EJ Series Factory 2. It just recently starting to jerk when I accelerate around 2000-3000 rpms, the jerking is very bad especially in 2nd gear. 0L Turbo) Sep 14, 2005 · hi just wondering if it is normal for turbo subarus to get a bit hesitant when flooring it (mostly second gear i found) the car seems to jerk back and forth slightly as it accelerates, it feel more like lag from the rear diff but im just a newbie. Subaru WRX – (Felix Mizioznikov / Shutterstock) The most common causes for Jun 21, 2012 · Hi everyone. To try /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications, mechanical issues, industry news, and more. I haven't driven my car many miles in the past months. dmtnqc gmbnr phqm ofvpw egxkp mzbxmf zbv lofkya epay uoza zmqsum nekz uioxf qztk ewihxrvy