Camry :: 2007 SE 4 Cyl - Car Seems To Lag Under Hard Acceleration
I have a 2007 Camry SE 4 cyl. Sometimes under hard acceleration the car seems to lag. I have about 64K miles on the car.
When is it recommended to have a spark plug replacement? Will a tune-up work to liven up the car a little better?
Camry :: Cylinder 2 Misfire Under Hard Acceleration
I've been having a cylinder 2 misfire in my V6 2002 Solara, and I'm not sure what to replace. I've been told that I should get a new coil pack for cylinder 2. The misfires in the engine seem to be most noticeable under hard acceleration. I'm really not sure what to do.
View 2 RepliesAccent MC (2006-11) :: Hesitation Or Stumble On Light Acceleration That Come And Go
My 2011 stick shift no air Accent has a hesitation or stumble on light acceleration that comes and goes. It may not occur for weeks then re-occurs. It is hard to reproduce intentionally. It never occurs in cruise. The CEL is not on. Most often occurs at 1400 to 1500 rpm with slight acceleration or a slight increase in load as coming to a slight hill. I tried injector cleaner a few times and changed air filter. It seemed more reloaded to induction airflow so I changed the MAP sensor. I understand the 2011 Accent does not have a MAF sensor. It is still occurring. It is fine in steady cruise as well as in hard acceleration. I am wondering if it is a TPS sensor problem. It has 60,000 miles and otherwise runs fine.
View 4 RepliesSanta FE SM (2001-06) :: Stumble Or Surge On Light Acceleration
On light acceleration, it has a light stumble or surge and is very slow. On hard acceleration it makes a lot of noise, but isn't even fast enough. I can feel it shift through the gears, and can feel the converter lock up when it's supposed to. Any attempt to climb a slight hill or pass a car, it downshifts to what seems like 2 gears down, and has a loud roaring noise, but I don't feel the acceleration. At steady speed, it feels like it's hunting for a steady RPM, but can't find it.
I just had a timing belt replaced. Had the mech double check to make sure marks are correct. He did a cranking compression test and said they were all between 165-170 psi (is that a little high for a 150K mile car?). He smoke tested the intake system and found no leaks.
It does have codes stored for cat converter and a lean code-bank 1.
Camry :: 2007 SE V6 - Noise Heard Under Moderate To Hard Acceleration
I have a 2007 Camry SE V6. Under moderate to hard acceleration, it sounds like a deep throaty sound coming from where the intake/throttle body is located, almost as if I have a SRI, but I do not. I checked for anything loose, hoses, airbox, etc. Then checked the intake resonator below and to the left of the battery, all seemed normal. Everything seems normal! Only happens when I push the accelerator a little more than usual, for example, when I go on the highway.
View 6 RepliesChevrolet - Blazer :: Stumble At Low Speed Acceleration - Code PO300?
What would cause a trouble code PO 300 on a 1998 Chevy Blazer. The truck will run good sometimes. When it runs bad it will stumble at low speed acceleration. It will run fine wide open. Dealer looked at it and thought it was egr vale. I replaced it and it runs a little better but still stumbles.
View 5 RepliesFord F-150 - 1997-2003 :: Slight Stumble / Misfire When Under Acceleration
I have a 97 F150 4.6. The truck has developed a slight stumble/misfire when under acceleration. Once at speed it runs fine. It has not given any codes. I've checked for them several times. The plugs and wires have been changed. Is it possible that a coil pack could be bad without throwing a code?
View 3 RepliesSilverado :: 2000 Tahoe V8 - Hesitation Or Stumble Under Acceleration Or At Steady Speed
I have a 2000 Tahoe with the 5.3L V-8, 351,000 (yes that is correct) miles. Runs great except it has recently developed a stutter, hesitation, skip, I don't really know how to describe it, under acceleration or at steady speed. This is an intermittent problem and it is driving me batty. The only codes are a P0420, maybe after 350k miles it needs replaced? Would that possibly cause this issue, or am I looking at something more sinister?
View 2 RepliesToyota - Camry :: 1991 - Transmission Leak / Bumps Into Gear On Hard Acceleration
I have a '91 Camry that's my daily 50 mile round trip commute car. It runs well and still has lots of pep at 156,000. There are oil and tranny leaks (tranny leaks around the pan seal) but I check the levels and keep everything topped off. Tranny fluid and filter were changed about 20K miles ago. I am the original owner. Shifting is OK unless I accelerate hard, then it "bumps" into gear. On hard acceleration it is a pretty good bump but if I back off the gas it shifts much better. There are no other symptoms, at lower speeds it shifts fine unless the A/C is on, then I get bumps above the 1-2 shift. What the problem is?
View 3 RepliesFord 6.0L Power Stroke Diesel :: 2005 - High Pitch Squeal / Turbo Has Been Sticking After Hard Acceleration
For a month or two now my truck has been making a squeal and the turbo has been sticking after hard acceleration. The sticking was a woebegone unison ring and I was hoping the squeal would be resolved when I cleaned the turbo but it didn't, in fact, it got worse.
It used to be occasionally and go away after warming up, but now it's more constant than not. It goes away when the VGT does its idle cycle and once you get up to speed.
Here's the sound - YouTube.....
Accent MC (2006-11) :: Hard Start And Stumble At Takeoff
09' Auto accent developed an issue that I haven't been able to sort out. Car began experiencing a condition where it was harder and harder to start, over about a 2 day period. As well, when stopped at a light it would idle fine, but almost stall when you tried to accelerate. Once above about 2k rpms it was fine, but then near 4k rpm it felt dead, didn't want to pull.
Only code was P0171.
Here is what I have checked thus far.
All injectors ohm out exactly at 15.1
-Fuel pump primes at key on like it should
-Verified cam/crank are timed properly (timing belt didn't slip a tooth)
-Car is MAP based, so no MAF to deal with. It's totally stock down to the paper air filter.
-Purge solenoid is closed and appears to be functioning properly.
I was checking things last night and this time it didn't want to start at all. I haven't checked for injector pulse or spark (it's coil on plug), but this didn't seem like part of the issue it was experiencing. Almost feels like a cam or crank sensor going out (timing is acting weird). Is there a relatively easy way to test the cam or crank sensors other than just trying new ones?
Camry :: 2005 Hesitates On Acceleration
I just bought an 05 Camry with 40k miles. Runs great. Decided I'd have a tranny flush and coolant flush done. Oil was done recently. A couple hundred miles later and today I've got a noticeable hesitation when accelerating. It's not a herky jerky stutter, but a smooth, consistent like a loss of power like I'm quickly letting my foot off and back on the accelerator. Doesn't seem to do it when not in gear, just under acceleration. Checked trsnny fluid and it's ok and full.
View 9 RepliesFord 6.0L Power Stroke Diesel :: 2004 - Stumble And Hesitates At Idle / Acceleration?
I have a 2004 f350 6.0 it has 73000 miles on it. I've had the truck for about a month and its developed a slight stumble, hesitation. It does it during idle and acceleration, if I give it more throttle it smooths out. The cel is not on and there are no stored codes.It did this a few days after i bought it,i noticed the map sensor was broke in half so i replaced that and it smoothed out.But it came back. Exhaust is clean no white or black smoke at all.
View 11 RepliesFord F-150 - 1997-2003 :: Slight Miss / Rough Idle - Hesitation Or Stumble On Acceleration
2003 F150 5.4 72852 miles
I have a Rough Idle & sometimes a hesitation or stumble on acceleration. I cleaned the MAF & IAC motor & Air & Fuel Filters are new. I got a 20890 scanner & ran test 6 53 as suggested in many posts by BlueGrass. Here are My results & what They Convert to.
1 00F5 .3675
2 0051 .1215
3 0000
4 0000
5 00A3 .2445
6 0000
7 0000
8 0000
I'm guessing the cop's are ok & probably need plugs? I was hoping to just swap a coil. Too cold to do plugs & truck won't fit in my garage.
Camry :: 2005 LE Surging Under Acceleration Or When Tranny Downshifts
The vehicle I am working on is a 2005 Camry LE with the 2.4L I4 with 172,000 miles. The problem is it surges under acceleration or when the tranny downshifts and engine is under load going up a hill.car idles fine and runs good otherwise. Its hard to explain the surging without driving it yourself but I will tell what I have done so far and car is not showing CEL.
-replaced the AFR sensor (Bosch)
-replaced the O2 sensor (denso)
- plugs look good (no fouling)
I am thinking maybe the throttle position sensor or MAF sensor. What to check next.
Camry :: 2005 Acceleration / In Low Gears Car Seems To Be Lurching Back And Forth
I own a 05' MCV36R and have noticed a strange acceleration issue in the past few months. In low gears the car seems to be lurching back and forth. The RPMs are consistent with this jumping up and down. The car doesn't have any issues when travelling at faster speeds, but perhaps i'm just unable to tell.
I first noticed the problem when travelling at about 60 kmph along the straight bit of road outside my house. At this constant speed the car seemed to lurch forward and backwards slightly. I also notice it when turning corners at low speeds, for example in car parks.
I did a test yesterday when first taking off. I travelled at 20kmph for a reasonable distance and found a speed/ rpm combination that magnified the issue.
I spoke to a mechanic and he said that the throttle body may need cleaning out. I have since done this and it hasn't resolved the issue.
Passat (B7) :: 2012 - Engine Whistle Under Hard Acceleration With A/C On?
Currently having a possible 'issue' with my 2012 Passat 3.6. Every time I perform a hard acceleration, or any time the RPM's exceed 4,400, I can hear a whistle that is rpm-based coming from the engine bay. It is quite notable from outside as well, and ONLY occurs when the A/C is ON. Is this something I should be concerned about? I never hear it when hard accelerating without the A/C on. It is a high pitch whistle that increases in pitch the higher RPM's that are reached. Sounds almost exactly like a turbo, but as soon as I change gears in the acceleration, the pitch instantly drops back down but still matching (pitch-wise) rpms in the next gear and continues again.
It's loud enough to hear it in the cabin, but not over, say, 6 of volume on the radio.
Ford Fuel System :: Hiccup And Stumble When Get On It Real Hard From A Standing Start
My 302 runs pretty good when all warmed up. It has some cold start issues every now and then, but is easily dealt with. My question is how to best "tune" the carb. It's a 600 cfm 4150/60 style Holley single pump, vac secondaries and electric choke. About as basic as you can get. I think I have the fuel level set correctly. I also think I have the "idle mixture" set right. I used a vacuum gauge and moved back and forth between screws till I got the highest vacuum. Is there a better way than that? I have the idle set correctly. the fast idle is a little high, but I can fix that.
Now, my real question is how to fix the hiccup and stumble I get many times when I step into it pretty good. I assume that this is the point the carb is going from idle circuit to main circuit. It stumbles when I get on it real hard from a standing start. I can roll slowly and step into it and it stumbles as well. I also like to blip the throttle when I down shift (it has a manual tranny by the way), and many times I'll blip it and get nothing. Now, it runs fine after the stumble all through the rpm range. That's the only time it stumbles. so, do I need more accel. pump shot?? To compensate on the transfer of circuits.
I also notice when I on it real hard, during the shift right when I jump on it, under the heaviest load, I hear a bit of spark knock. It's not running hot, and the timing is good. Do I need a bit bigger jets? I'm thinking it's going a bit lead during that time, but I don't have any real way to measure it.
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...