Prius (2010-12) :: Rough Engine Starts Frequently?
The first part of diagnosis is to understand how frequently this happens and hopefully find any reproducible patterns. This is an open poll running to the end of October.
ZVW30 - 1.8L Prius...
Ford Super Duty (1999-2016) :: Engine Is Running Rough (jerky On Acceleration) Especially When Driving
I have a 1999 F250 SD V10 4x4. I recently had a transmission installed and the truck is running erratic. I have an engine miss (sometimes when idling, more so when in drive and foot on the brake). I say sometimes because there are times it will not miss and the engine runs smooth. The transmission shifts a little strange and sometimes hard.
I am getting a code reading that says my TPS is faulty, but I installed a new one a few months back.
The engine is running rough (jerky on acceleration) especially when driving. I was wondering if I should take it to a shop and have them flash the computer to reset it?
I also remove the AC compressor a while back (bad clutch). I installed an aftermarket pulley.
Ford 7.3L Power Stroke (1999-2003) :: Starts Hard / Bucking And Really Rough
If I don't keep her plugged in she starts hard, bucking etc. I'm thinking GP or GP relay but I`m not getting any thrown codes. Talking about *30-*50 outside, when its warm starts normally.
View 14 RepliesCamry :: 2008 - Jerky On Startup / Hard To Drop Into Gear
I just got my 08 Camry 4cyl 2 months ago. I noticed that when I start the car up and put the car into drive or reverse within 5 seconds of starting it up, it will jerk a lot. It seems like it's dropping it into gear hard. I checked this morning to see if the car is revving up when I do that and it is. It is sitting at 2000 rpm on startup. Is this normal and do I just have to wait a little bit before putting it in gear?
View 3 RepliesGolf IV / Jetta IV :: Jumpy / Jerky Because Of Rough Idle
When I first start me car up, doesn't matter the outdoor temperature it idles terrible jumping up and down. When I go to put it in first gear and attempt to pull out it's very jumpy/jerky because of this rough idle. Once I drive a little bit if I stop it will idle fine. This problem seems be slightly worse when it's wet/raining/humid.
Its throwing codes P1128 Manf Control p0300 multiple misfires and then p0301,0302,0303,0304 which is misfire for that individual cylinder. Also my oil light blinks once in awhile, think that could possible be sep issue though.
I changed plugs, the old ones were really white... I believe that means running lean?
Put in new coil/wires
Gas Filter
Mass air flow sensor
Changed 02 sensors
Also did the seafoam treatment, none of it seemed to work...
Though about possibly changing temp sensor next. I hope it has nothing to do with fuel injectors....
2000 Jetta 2.0l 4cy AEGengine
Sonata I45 (LF 2015+) :: Engine Starts Hesitating Around 5k RPM Under Hard Acceleration
I'm on my second '15 Limited Turbo. Only have 2k miles, but I've noticed an issue with acceleration. When under hard acceleration, especially in 3rd or 4th gear, around 5k RPM the engine starts hesitating. It feels like it runs out of steam. This feeling lasts through beginning of next gear, then the car picks up again. It is actually faster when applying less throttle.
What it could be? It did it since new, I took it to the dealer once, but got some stupid response that it was just rev limiter kicking in (at 5k, right), unfortunately had no time to leave it with them again/show it to them. I also thought it might just go away on it's own, plus I don't usually drive it that hard anyway...
Lexus RX 2010-15 :: Check AWD System Message / Hard Jerky Downshifting
So I just purchased my new-to-me, CPO 2010 RX 350 two weeks ago. It had 81,750 miles when I purchased it, and it now has about 83,000 miles. I just came back from a weekend vacation, having driving about 500 miles total. This morning when I turned on the car, I noticed a message saying "Check AWD System," the check engine light was on, the general warning light was on, and the traction control light was on. As I was driving, I realized that the car wasn't downshifting properly. I didn't drive faster than 40 mph on my morning commute. When the car did downshift, it was a hard, jerky shift.
I did some reading on the forum, and many people suggested all the warning lights could be fixed by taking off and retightening the gas cap (due to the vehicle not reading the emissions properly or something?). I also read that topping off and overfilling the gas tank can be cause for the warning lights to go on. I did fill up once on my way home from my vacation, and haven't filled up since.
Anyways, I just now tried to adjust the gas cap and then restart the car, but the warning lights are still on. What I should do or if I should drive it a bit to let the emissions build up again? My problem is is that I live about 6 hours from a Lexus dealership, so I'm trying to figure out if I can resolve this on my own or what I should tell a mechanic specifically if I need to take it in.
Lexus LS 2007+ :: LS460 Transmission Would Shift Hard And Jerky Almost Through First 3 Gears
So I recently purchased a 2007 LS460 with 115k on it. I've noticed that about a month ago the car started driving pretty weird. The transmission would shift hard and jerky almost through the first 3 gears, like driving a manual.
Also, when I tried to floor the car from maybe 40-50mph, the rpm would shoot up only 500 then downshift and accelerate causing a violent jerk. It feels like if I was driving at 50mph on 8th gear, when I floored it the car would feel like it downshifted to 7th gear for merely less than a second and downshifted again to 4th gear causing the car to jerk hard.
This is the car's history:
- Reset the ECU by disconnecting the battery (no luck)
- Auto transmission software has been updated at the dealer
- Valve springs recall has been completed
- Head covers has been changed
- Engine module has been reprogrammed by the dealer at 70k miles
- Trans fluid has been changed at 70k miles according to lexus.com service record
So at this point I really don't know what could cause this problem anymore, maybe it could be the transmission fluid?
Accent MC (2006-11) :: Hard / Jerky Shift - CEL Showing Code P0717
My 2009 Accent started doing the Hard/Jerky shift problem that I seen discussed in the forums. Had check engine light, scanning showed a code P0717. My question is, which sensor should install?
View 4 RepliesSonata I45 (YF - 2011+) :: Transmission Intermittently Shifts Very Rough And Jerky
Car intermittently shifts very rough and jerky. Just took on a long vacation trip and every AM when it was cold it shifted hard them smoothed out once warmed up. Got home and now it is doing it all the time. Dealer said do the trans flush...I did it and it made no difference. Is this a common problem with this model? Mileage is 39,800...not sure I want to buy this car at lease end.
View 15 RepliesFord Aerostar :: 1995 - Rough Idle / Jerky Acceleration
Symptoms: (162K miles, last tune up about 70K miles ago) rough idle, and poor acceleration. Occasionally, the car really jerks while accelerating. I read about new plugs/wires, and something called seafoam. I think the highway patrol would pull me over as a gross polluter, but that too seems worth a try. Various sensors and hoses, I'm frankly overwhelmed. Where to start?
Something I learned today: My car was made in 10/95. Apparently, I can scan for trouble codes?!? How and where? Is it OBD I or II or something else? Dumb question: I can't even get the interior engine shroud off. I found three clamps, but it still hangs up near the top. What am I missing?
Prius (2004-09) :: Starts Fine But Idles A Little Rough
Just recently my Prius Taxi with 340,000+Km has developed a little problem,it starts fine but after 20-30 seconds it begins to feel like it's not running properly on all four cylinders,if i go to the exhaust pipe it seems like it's spluttering slightly.
Yesterday I changed the plugs,checked air filter and all connections,everything fine, when I accelerate it feels hesitant but after the car gets up to temp it seems to go away,it only happens when i start it first thing or if it's been left for a few hours, it's never had the throttle body cleaned and I'm wondering if what I'm describing is a symptom of this?
Passat (B7) :: 2014 V6 - Hard To Smoothly Accelerate From A Stop / Jerky Throttle Response
I find it hard to smoothly accelerate from a stop with my V6 DSG. I have to be very careful how much pressure I apply to the gas to get a smooth take off...too easy to accelerate to fast or break the tires loose. Can this be reprogrammed?
View 3 RepliesFocus :: Ford Idles Rough Once Engine Starts Coming Up To Temperature
We have a Ford Focus wagon that idles rough once the engine starts coming up to temperature. When you first start the car it's fine. For example, today I started the car, drove it up the road to the store and it was fine, but upon returning to my driveway just a few minutes later, as the engine temperature was just starting to come up, it started idling really rough. The idle is so rough it sounds like it's on the verge of stalling, but it never has actually stalled. An oxygen sensor has been replaced and it was good for a while, but now the problem is back. The check engine light is on as well.
View 2 RepliesPontiac - Grandprix :: 2007 - Engine Starts To Run Really Rough And Tach Climbing Up
The car runs fine for several miles/minutes, suddenly the tach starts to climb, up a jump, then up again. This is when the engine starts to run really rough and I pull off the road, let the car cool down and make it the rest of the way to work (about 15 miles).
Here is what I have done: Radiator flush and fill; Oil and filter change; Cleaned EGR and replaced gasket; put in new spark plugs; changed the transmission filter and oil; replaced the O2 upstream and downstream sensors; replaced the thermostat 195 to 180; replace the coolant temp sensor.
The check engine light does not come on (except on start-up check sequence), so it is working. Their are no trouble codes (other than when I removed the downstream O2 sensor to check if I would get errors). The cat converter doesn't glow at night, and doesn't rattle when tapped. The resonator in the exhaust does make a rattling sound, but I don't see why that would be the problem.
I am at my wits end. Any clue what I should try next? The water pump isn't leaking.
Prius (2010-12) :: Starts / Runs Rough For A Few Seconds Then Shuts Off
Car starts runs rough for a few seconds then shuts off (spark plugs and 2 coils were replaced a few months ago). Coolant reservoir level was way low so I filled to the full line, kept the cap off to cycle. During the time the car starts, the coolant from the reservoir violently "boils" over (out of the reservoir). Huge amount of white smoke from the rear exhaust and a burning smell.
Used Techstream and got the following codes:
Engine and ECT: P0117, P0302, P3190, P3191
Hybrid Control: P0A0F
Intermittently get misfile codes but this time around they did not return.
Ford Ranger / B-Series :: Hard To Get Out Of 2nd Gear / Engine Surges Then Starts To Lose Power
My surging/running down issue has returned on my '86 2.3l Ranger. I thought it was electrical, when things improved with the new ignition switch, but lately it's hard to get out of 2nd gear before the engine surges then starts to lose power. a poke of the gas pedal starts the who cycle over again. I pulled codes but it's hard to tell what the reader is saying either 33 and 34 or 334. The good thing is all the codes point to the EGR system. Looking for a diagnosis tree to determine if the valve is bad or the sensor is shot? They are both not cheap so I don't want to just throw parts at the problem.
View 14 RepliesAccent MC (2006-11) :: Suddenly Started Running Real Jerky, Rough / Misfiring
Our Accent has just about 86k on it now, back in November it suddenly started running real jerky/rough, misfiring kinda thing. So I was able to drive it to my local repair shop and they found a bad coil pack on #3, so they replaced that and put in new plugs while they were doing it.
Just Saturday we were shopping about 20 miles from home and cranked it up to go home and started doing it again, pretty much identical symptoms, runs out normal at certain RPMs so I knew it was probably same thing...I was able to get it home and then took it in this morning and sure enough now #1 is shot. So they are replacing that. They want about 30$ more per coil then I can order them for myself online so I didn't want to scarf up the money for the other 2 that are still original.
Accent LC (2000-05) :: Rough Idle - Engine Get Louder And Car Starts To Vibrate Slightly
Recently bought a 2001 Accent that has been experiencing a 'rough idle' for the last few weeks. Basically, after I've driven the car for a few minutes (from a cold engine position) and then stop at a stop light or stop sign, I can hear the engine get louder and the car starts to vibrate slightly, after I've driven for about 15 minutes at higher speeds and then stop again I can actually see the steering wheel shaking when I take my hands off of it. If i put the car in park when I am stopped and the engine is on, the idle calms down quite a bit. The weird part is that when I first start driving the car in the morning, the rough idle problem doesn't happen until about 5 minutes of steady driving - so when the engine is colder I don't experience the problem, The problem is not that serious, and Ive already brought it into a dealer who cleaned out fuel injection, gave me a major tune up and replaced all the spark plugs, but the problem still persists. I am gonna bring it back to them but they seem a bit lost to be honest. Other than this the car is driving normally when I am not idling.
View 14 Replies