Mazda - B4000 :: Hesitation And Surge After 25 Mph
After having my whole clutch system replaced..the truck now hesitates after 25mph shift 35, 45 and so, on it does not have a rough idle, it is like it has a hard time going then gets a burst of gas or air or will power and runs great till the next shift..,after replacing air filter, fuel filter. fuel pump & regulator, tps sensor co2 sensors and cleaning maf/map and fuel injectors, is using lots of gas too..the truck is still not happy, spent hours checking for pinched vacuum or fuel or eclectically lines.. Oddest thing, it won't throw any codes.. 1994 mazda b4000...
View 3 RepliesCamry :: 2002 XLE - Hesitation At Low Acceleration
I have a 2002 Camry xle v4. It has a hesitation at low acceleration. I've replaced EVERYTHING: Mass Flow Sensor, 2 O2 sensors, plugs, etc. This past weekend I changed the plugs again with a better quality than before and the hesitation went away....for 2 days! Now its back.
View 5 RepliesCamry :: 2002 V4 Developed Consistent Hesitation
My 2002 V4 Camry has developed a consistent hesitation. It only occurs during the first 15 minutes (or so) after cold startup. I've replaced: plugs, 2 O2 sensors, Mass Air flow, and EVAP Canister.
Am about to try the throttle position sensor.
Lexus GX 2010+ :: GX460 - Low Speed Transmission Surge Or Hesitation
Experiencing a low speed transmission surge or hesitation when applying first applying the gas at parking lot speeds.? I especially notice it when traveling downhill or a slight decline. The motor revs as if in neutral then the transmission catches on. I mentioned it to the dealer at the 1000 mile check up and they said they could not find anything wrong. I'm getting ready to take it in for the 5000 mile service.
View 8 RepliesFord Excursion :: 2000 - Hesitation / Surge And Stumble Over 1500 RPM
I recently picked up a 2000 Excursion with the 5.4 V8. Engine has 150,000. I got it cheap because it has a surging problem over 1500 RPM. This problem is intermittent.
I have 1 DTC. P1000 which is OBDII checks not complete. I cannot clear this even using the factory procedures. FYI..I have a snap on solus scanner. I think this is a voltage problem, If you try to start the engine with the scanner plugged in, the scanner shuts off, so I'm thinking the PCM loses battery power supply when the starter engages, resetting the PCM.
This problem is NOT a miss.... something isn't opening or shutting off above 1500 RPM. This truck doesn't have an EGR system, it has the EVAP system. This may be the problem, thats why I'm here. OK. heres a list of what I've replaced since I started working on it.
Engine oil and filter
air filter
fuel filter
8 COP's
8 plugs gapped properly
cam position sensor
IAC sensor
MAF sensor
Removed throttle body and cleaned.
Vacuum checks. 22" at purge valve,fuel dia, and vacuum canister
Checking with the scanner at 1500 RPM with problem
SFtrim1% bounces between5-15
SFtrim2% bounces between2-0
LFtrim1% bounces between11-13
LFtrim2% bounces between 5-6
O2S11(mv) bounces between 200-781
O2S21(mv) bounces between 200-800
Ssystem is in closed loop holding throttle at 1500 RPM... Note engine surges when at the RPM or above. I'm thinking the engine is lean, not sure how to read the trim numbers...
Idle is fine ... Problem is intermittent ... Also noticed that engine will only advance spark to 30 degrees @2000 RPM during this problem. I have seen it advance to 38-40 degrees when I do not have this problem, so I kind of understand the power loss,knock etc due to the timing, my question is whats causing it to do this?
EVAP question.... The purge valve should open according to PCM command a certain value, correct? I can monitor the duty cycle % but cannot activate and check proper duty cycle through scanner . When I try to I get an error message of module error -unspecified.
Disconnected hoses at purge valve,Full manifold vacumn on one, nothing on other, no flow through purge valve, but scanner shows 30% duty cycle. I would think the should be a little flow at 30% Maybe my problem? Troubleshoot procedure for the EVAP would be good.
Camry :: 2002 XLE - Slight Hesitation Happens In And Out Of Cruise Control
248K miles. At hwy speeds, acceleration is great. But when "gas" is slightly relaxed without moving foot (e.g. downhill or level not acceleration) experience slight hesitation. Happens in and out of cruise control. What might cause this? Fuel pump?
View 1 RepliesLexus GX 2004-09 :: Slight Hesitation / Surge While Driving At Constant Speed?
my 2006 GX has 95000 miles and recently i've noticed a slight hesitation followed by a slight surge in speed while driving at a constant speed. it almost feels like i'm pushing the accelerator then releasing it. its a very mild difference but i'm guessing tranny and have 5k left on my warranty. it occurs at a variety of different speeds but most noticeable at about 35-40mph and up around 55mph.
View 6 RepliesCamry :: 2002 - Intermittent Misfire / Hesitation Under Load And At Idle With AC On
So I have had my 02' Camry for a little over a year. Love the car, it is a 2.4L SE with a 5-speed manual. Recently it has developed this mystery misfire/hesitation under a load and at idle with the AC on. I replaced the plugs with OEM Toyota Iridium and it seemed to clear it up for about a month, but now has come back. If I start the car and turn on the AC it will intermittently start to miss but not only when the compressor is engaged and it does it every now and then under a load specifically in 4th or 5th gear under a load with lower RPM's (under 2000).
The check engine light is not on and hasn't as much as even flashed on at any time so there must not be any hard misfire codes. I want to stop by Autozone and see if they will scan it to find any stored codes but haven't had time. I would think that if it was a coil pack that it would be a hard misfire. I'm stumped. This car is in great condition...no oil leaks, interior is near perfect (replaced a worn shift knob, and door panel pieces around the window switch). Also car has 160k miles.
Nissan - Xterra :: 2002 4WD Losing Power Traveling Uphill
The 2002 Nissan Xterra (4WD), automatic transmission, I drive for work is starting to have trouble traveling up hills. Just the other day I was traveling on a freeway up a fairly steep grade for ~6 miles. It wouldn't down shift and the pedal was to the floor while I watched the speed slowly drop. I started noticing earlier this year that it will disengage the cruise control on this same steep grade, though not every time. This used to be my personal vehicle and I have been driving it since 2002, so I know how it drives. A mechanic test drove it today and chalked it up to age (our admin assistant took it to the mechanic, so I didn't get to talk to him). Its got something like 170k miles. That is a lot of miles and it is 10 years old, but I am really wary of any diagnosis based solely on age.
View 8 RepliesCamry 2012+ :: Droning Noise While Traveling At About 70 Mph
I have just purchased my first Toyota, a 2015 Camry LE. It is, of course, a 4 cyl. and is white with a gray interior. I have been car shopping for two months, and when I got to test drive it, it felt like wearing my favorite jeans. Smooth, roomy and well equipped for a base model. $6k off sticker didn't hurt matters either
That said, I noticed a pretty significant drone last night while traveling at about 70 mph. I did not hear it during the test drive, but that's not saying it wasn't there. There's no vibration I can feel...just the audible drone. What do you think/know are the causes?
Toyota - Camry :: Shaking When Traveling At Highway Speed While Under Power
1989 Camry, 2.0L A/T- 97K mi.- This car has developed a violent shaking condition when traveling at highway speed. It only occurs after the car has been driven for at least 1/2 hour. It does not appear to be related to an individual wheel or axle, and happens only when the accelerator pedal is depressed and the car is in gear and moving at 50+ MPH. Steering is not affected, nor does turning the steering wheel increase or decrease the shaking. The shaking stops when the accelerator is released. The engine runs smoothly, with no misfire or vibration.
View 3 RepliesFord Escape / Hybrid :: 2002 - Grinding Sound When Traveling Straight Or Turning Left
2002 XLT 3.0L 4X4
Making a grinding sound when traveling straight or turning left. Any turn to the right (even the camber of the passing lane) and there is no grinding sound so I figured it was the drivers side wheel bearing. Replaced it yesterday.... symptoms are still there.
Tight left/right turns don't result in the popping/snapping of a bad CV joint so I don't think that's it.
I don't think it's transmission related since shifting is good and the grinding is not throttle related. Besides, turning shouldn't have an effect on the sound if it was something in the transmission, right?
Camry :: Gen 6 - Excessive Wind Noise In Cabin When Traveling Freeway Speeds
Have excessive cabin wind noise in your Gen 6 when travelling Freeway speeds. I know there would be some noise but when passengers mention it and we talk louder than normal then i think its an issue. It is kinda loud now...
View 2 RepliesBuick - LeSabre :: 2002 - Lurching Forward And Slowing Down Repeatedly On Freeway - Possible Power Surge?
My 2002 Buick Lesabre has about 160,000 miles on it I keep up with maintenance regular oil changes and what not. Today when I am driving to work and right as I get on the freeway my car starts lurching forward and slowing down repeatedly so I pull over turn the car off look under the hood everything looks normal to me. I wait a bit start the car up and the lights on my panel go from the dimmest they can be to blinding bright and I could not adjust the brightness at all. Any way the car drove fine the rest of the way but the lights were bright as can be the whole way there. What could be causing this? Bad battery?
View 5 RepliesEngines - Sensors - Transmissions :: 2009 Camry - Unintended Surge / RPM Shoots Up
Here's the situation -- 2009 Camry, 32,000 mi. No recalls on record for its VIN. Parked in parking lot and preparing to leave. NOTE: At no time does my foot touch the gas pedal. OK...Foot on brake. Start engine, shift to reverse and back up under idle power. Turn wheel to align for departure and stop. Foot still on brake; shift into drive. Uncommanded (by me) engine RPM shoots up! Now hard on brake to stop forward lurch while simultaneously shifting to neutral. Engine RPM now screaming. Shut off ignition. Again, no touching of gas petal in this whole process. Turn the car back on and all it normal All has been normal for a month. Can't get the incident to repeat. No "check engine" lights at any time. Car operates perfectly.
View 3 RepliesMazda :: 2002 Protege 5 - Hesitation At 3k Rpm
Have 2002 mazda protege 5 . During acceleration at 3000 rpm the engine hesitates. Computer said o2 sensor, replaced it but that wasn't it. Drilled out both catalytic, that wasn't it. Found hole in mass air flow tube, figured that is it. I haven't replaced that yet, however I used gorilla tape thinking it would be a temporary fix but that didn't work. I know I need to replace that tube, but think that it may now be a fuel pump issue??
View 5 RepliesToyota - Corolla :: 2002 - Hesitation After Stopping At Light
When I stop for a few minutes, such as at a light, or making a left hand turn, my car hesitates. The place I take it to cannot find the problem and they have replaced a lot of things in it, but still no change. It is a 2002 car, so it is a little older, but I have always kept it in good shape, it has 65,000 miles on it.
View 6 RepliesElantra XD (2001-06) :: 2002 GLS Has Slight Hesitation When Shifting With Low RPM
I am having a slight hesitation problem on my 2002 gls. When the car is cold and I am shifting with low rpm there is a slight hesitation untill higher rpms then it seems to clear. I wouldn't say a "stutter" or enough to "buck" the car but definitely noticeable. The strange thing is when the car gets up to temp it seems to stop. Almost like a carb on an older engine.
View 3 RepliesIntrepid :: 2002 Transmission Hard Shifts / Engine Hesitation
Our intrepid 3.5L with 135000 miles has been acting up a bit. Its had a couple hard shifts over the last few days/week that almost seemed like an engine hesitation, and this morning when slowing down from highway speed into a small town, it abruptly shifted down to 2nd and stayed there like its in "limp mode" ??.
Pulled over and checked fluid. Level looked good and smelled ok but has a brown tinge to the pink fluid.
Started to go again and it still wouldn't shift. Pulled over and shut car off. Checked codes P700 and P138.
Started car up and it shifted fine for the next 28 miles. Shut car off and parked it.