Toyota - Tacoma :: 1997 - Slight Stumbling / Hesitation Sensation
May 11, 2013
I have a '97 Toyota Tacoma, two-wheel drive. It has 154,000 miles on it. During the last three weeks, there's been a hesitation/ stumbling sensation happening occasionally in the first three gears. It doesn't happen in 4th or on the freeway. At first, I thought it felt more like a "slipping", like a clutch going bad (since I still have the original clutch).
I had my mechanic check it out, and it's fine. Here's a brief history of recent work done. Three months ago: injectors removed and cleaned out on a special machine. I replaced the cap & rotor and spark plugs. The wires were replaced last year. I replaced the fuel filter and PCV valve. I cleaned out and replenished my K&N air filter. Last week, I checked the connections where the spark plug wires connect to the cap. They seem fine.
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My 09 Tacoma 91000 miles- symptom: when idling with foot on the brake, on occasion, experiences engine pause/subtle forward sensation; otherwise drives superb. Service shop said the issue is remedied by replacing the drive shaft thereby switching out the "yoke" which is the source of the problem. Shop said this is a common problem with 09 Tacomas. Does this need immediate repair or can I drive safely?
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My '98 Tacoma automatic has had a intermittent hesitation for 5 months. I've had it to 3 mechanics who cannot get it to hesitate when they are driving it. I left it for 2 nights at the last auto shop and let them drive it when it's cold and they couldn't find anything wrong with it. It hesitated 3 times this afternoon as I was driving it home from the shop.
Everybody has told me to wait until it gets worse to bring it back to be fixed. I have a new catalytic converter, o2 sensor, fuel filter and none of that has worked. The check engine light has come on briefly once, but went off before I could get it diagnosed. What I can do to get it diagnosed and fixed before I get stranded somewhere?
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Driving the last week, gone about 10 - 15miles when all the sudden I noticed a stumbling in motor while going up hills. Got where I was going, shut her off and came back a few minutes later, loaded the kids and popped the hood. Nothing obvious but a vac hose from the vac reservoir(?) to TB was a little rough looking. Jumped in, hard to start - low on fuel or ignition and idled at 300 - 400 till throttle got it going. Has started and idled fine ever since. Raced home with the whole 15 miles stumbling up hills - repeated that every drive since after a few miles of driving. Warming the motor up prior to driving doesn't seem to speed up the problem - it takes a few miles to start. Assumed fuel pump at this point.
Got to work on it. Replaced the suspect vacuum hose. Nope. Checked fuel psi - 31 and 40 w/o vacuum. Doesn't hold pressure - reading conflicting things on whether the system should hold psi with key cycle. It doesn't - bleeds to 0 in minute. Replaced fuel filter, regulator and pump. Checked the relay and pump after install - good click and good hum. Felt like problem was gone but I didn't drive more than a few miles each time I checked due to pulling the bed for the tank work. Plus we dropped 30 - 40 degrees while working it.
Never a CEL but decided to checked codes.
Continuous pulled up Neutral Safety Switch that I replaced last year
KOEO - P0232 which I assumed was from pulling the inertia switch multiple times to do the fuel system work
One time I did get P1207(?) Cylinder Head Temp Sensor out of range. Got it once and never again. Curious..
KOER - has never found a problem
The cold seems to have lessened the problem making me think electronics. My BIL is saying #4 or #5 coil or plug. I am starting to feel like I am chasing a gremlin.
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I have a 1997 toyota tacoma. The truck runs great. Last year I replaced the front calipers and breakpads. I drive the truck maybe 3,000 miles per year. The issue I have is that the brake light will not turn off. I checked the hand brake and it works fine. The switch on the handbrake is fine too. The really unusual thing is that randomly it will turn off. usually around 30-40MPH or when I have slammed on the brake. The brake fluid is fine. Is there a sensor in the rear on the rear pads that I may need to replace?
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I have a 2001 f150 5.4 with 200,900 miles. Just bought the truck about six months ago off my dad when he got a new one. I am now experiencing what seems to be a slight misfire. With the hood up pulling the throttle around 2200 rpm starts making a loud knock. Above that rpm nothing and below that nothing. Standing by the tailpipe it sounds like a small backfire. It Idles really rough and when you get that sound out of the tailpipe it jumps like its hiccuping. And tailpipe is vibrating quite a bit.
Things I have done in the past month include replacing the pcv valve, changing spark plugs, cleaning throttle body, cleaning MAF, took down exhaust to check cats because i was experiencing a power loss and bogging. When the exhaust was off i punched the two rear cats. I ran a bottle of iso heat in the gas. Everything seems to have supported the power problem but now less than a week later i am starting to experience the knock and backfire type sounds.
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I have a 2003 screw 4x2 with the 4.6, 148,000 miles, and I'm not sure what kind of transmission. Recently when the truck would shift into second it would hesitate and I would feel a slight grind, but it only did it when it would shift at 2000 rpm, if it shifted at 2500 rpm it would shift fine. I checked the fluid level, it was full, it smelled okay, looked *fine.
After pulling a boat (19 foot bass boat...nothing too heavy) it started to shake violently when I'd take off from a red light. So I dropped the pan and changed the filter, The fluid was dark red and smelled a little burnt. I put 4qts of fluid in it along with some Lucas transmission fix. The shake during take off is gone, and the grinding while shifting into second got a lot better but didn't go away completely.
However, now the grinding into second has has gotten worse again, and if I make a right turn from a red light it grinds and feels like its slipping until it shifts. I am not sure why making a right turn would affect it but its definitely worse when i turn right, left turns are fine. I'm guessing my transmission is going out and I just need to get it rebuilt...
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I drive a 2007 Subaru Forester X (auto) with 87,000 miles. When driving between 40-50 mph, I can hear and slightly feel a droning noise/sensation. This occurs while accelerating, braking or coasting through that speed range only. I drive on newer tires, but do not experience any shake or steering vibration. Unfortunately, I can't recall if the droning occurred before the new tires were installed. The droning noise is reminiscent of deeper exhaust note.
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My Tacoma makes very loud roaring and whistling noises mostly when I am idle and the brake is engaged while the clutch is depressed. Sometimes, she'll rear and balk continuously --- even more loudly --- depending on the outside temperature and her level of activity. I need to get her fixed, but live in the New York City area and am a broke graduate student terrified of getting ripped off. Do you think it's just belts? My transmission (sometimes I can feel the noise in my gear shifter)?
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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.
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I have a 1997 Toyota Tacoma 3.4L ... After having some problems a week ago with the truck dieing at every stop sign or any time my foot wasn't on the gas. Eventually the truck would not start at all. I finally got a CEL that gave me P3040 (Camshaft Position Sensor Circuit Malfunction) So I changed out the sensor and the truck fired right up and ran for 3 days.. Now the truck does not start again and I am getting the same CEL code.
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I'm a newbie who just took ownership of a 1982 turbo wagon. It's been sitting a while but started right up and ran well for about 20 miles until it began stumbling on acceleration.
The car starts easily and runs smoothly until it gets hot and then it suffers severe hesitation and stumbling. Occasionally it will stall but starts right up again. It has never failed to restart immediately.
On a cool day, it will run smoothly for thirty minutes or more before the problem begins. On a hot day, the problem begins in five minutes.
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I have an '02 Escape, XLT V6 with 4WD. Recently (within the last month) we had to have the engine replaced. They found that three of the coil packs were cracked on the old engine. They put the new engine in, hooked it all up, and it ran like a dream. The new engine came off another Escape and has about 122K miles (the old one had 175K). Today, I got gas and hit the highway to visit family Up North for the holiday weekend. I noticed about an hour into my drive that the car had a slight chugging feel, nothing extreme but it felt like small catch. I got to my mom's house, and then drove with my sister to the gas station and she noticed it too, it seems to have gotten more pronounced. I noticed again really bad on the way back from a friend's tonight. It seems to 'chug' when pushing on the gas or in Cruise, but not when its just coasting. What could it be?
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I have a 2010 with about 166k miles. I am getting a slight hesitation at slight acceleration or constant speed. It does not matter if it's on highway or freeway speeds. Now I am not sure if this in junction with me changing the PCV valve, cleaning the EGR pipe, or cleaning the TB for carbon recently. It started happening a week after it though.
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When I press on the brake pedal, at about halfway point, I feel a clacking sensation instead of a smooth downward motion. When I let my foot off the pedal, I feel the sensation again. There also seems to be a small knocking sound when I feel that clacking.
In terms of braking, there's no issue. It's just a minor annoyance that's been bugging me for a while. Camry 2012.....
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1997 expedition 4.6 .... Figured its the same motor. I bought it for cheap with a bad miss fire not sure what cylinders just did a tune up. I forget but I think they were motorcraft spark plugs I put in. But after that it ran grate so I thought. It would be intermiten but would all of a sudden while accelerating get a boost of power. That would last untell its next shift point and would always happen around 2-2500 rpm. Kinda like VTEC in a honda. Or it gained 2 cylinders. And would also start stumbling while sitting at a stop light for two long with it in gear and break on only after its warm. Never happens when cold. I hooked up tourqe and saw when it does it its misfiring on 5-6-7-8 randomly. Its missing on cylinder 4 all the time now which I believe is a plug, wire, or water-antifreez in plug hole.
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Recently bought 98 f150 xlt 3 door 5speed 4x4 4.6l 230k miles for $1k was throwing misfire codes on 1,8,4,3 cylinders. Usually throws two cylinders at a time and never the same cylinders consecutively
Parts replaced:
coils...msd blaster
belden wire
motorcraft plugs...when i did these it ran perfect for a tank of fuel...18mpg no stumble
two cans seafoam through the tank
tank was dropped and drained
fuel filter
one can seafoam intake cleaner
3" exhaust from the Y pipe back
MAF cleaned
Previous owner said to have tested and cleaned injectors but I am not positive it was done... I don't think its mechanical because it wanders through the cylinders and when i changed the plugs it ran spot on. it gets worse the warmer the truck gets also.
injectors?
clogged small cats?
sensor?
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The vehicle has 160,000 miles and had been running great. I pulled into traffic, put the petal to the floor, and it started stumbling and shaking. I pulled into the parking lot where I was going and expected it to die but it maintained idle but shaking real good. When I started it back up the SES light came on. I was able to coax it home but there was no acceleration, wouldn't go over 40 mph, and was still shaking bad.
I used my code reader and got the code P0340, camshaft position sensor. I replaced the sensor but it is still doing the same thing and still showing the code. It will start if I push the gas while cranking but it won't rev over 2K. I am thinking it jumped timing but most of the threads I read say they have never seen this on these engines. I want to get some opinions before I start removing the timing chain cover.
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Noticed A Slight Hesitation On Take off?
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So I have noticed a slight hesitation from a stand still. I press the gas and there is a slight delay(maybe less then a second) before something happens. It also does not do it every time, it is pretty random.
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When upshifting into 5th gear there is a slight hesitation before actually going into gear? I do not have this issue with any other gears!
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