I have just bought a 2000 Passat 30valve V6, from a dead stop when I accelerate it makes a weird "thud" sound and feeling under my feet, almost like when you have a broken tranny mount on a chevy. I have been told that it is the "TPS" or throttle body?? It does not do this shifting into any other gear.
View 2 RepliesI have a 2001 Subaru outback. Recently I've noticed a rattle when I accelerate, especially when I take off from a dead stop. I sounds like it's coming from the front wheel area. It also occurs sometimes when making a turn and then accelerate. It almost sounds like an object in a box and someone is shaking the box-very noticeable.
View 3 RepliesI have a 2003 Toyota Tundra V6. The problem I have with it is it hesitates. It does not happen ALL the time but it is very frequent. Sometimes it happens when I try to accelerate from a dead stop and other times while I am driving along (does not matter what speed). It will usually hesitate for a few seconds then everything is normal. The check engine light thus not come on.
I took it into Toyota. They duplicated the problem on the first test drive but did not have their equipment hooked up at the time. They kept the truck for over a week and finally got it to happen again. I guess they must have only been going on short test drives because it happens to me multiple times a day. They told me it was the throttle body and it needed to be replaced. My jaw hit the floor when they told me how much they charge to replace it. I ran this by a couple of friends who work on cars on the side and they said it sounded like the mass air flow sensor needed to be replaced. Since this was much cheaper than a throttle body, I replaced that. However, it did not solve the problem.
Jeep 2000 Cherokee
So I have this thumping noise, almost sounds like something is loose.The noise occurs for a few seconds when I accelerate from a dead stop and then goes away, it returns when I slow down and almost come to a complete stop.The noise also goes away when I put her into 4wd.The thump/rattle sounds like it is coming from the center counsel area and directly under the floor board in the driver seat.My car changes gears smoothly up and down while driving.
I was told it might be a transfer case problem and that it might need to be rebuilt, which makes me worry.
When I accelerate from a dead stop I have this squeaking that comes from the back of the truck that goes away after a few seconds. Then when I get up to about 50mph I have this really annoying vibration. Its not a real heavy vibration but it is there. I am thinking it could be the universal joints, am I way off here or what?
View 6 RepliesMy Superduty recently started clunking when I accelerate from a dead stop. The harder I hit the gas,the harder it clunks. I unbolted the driveshaft from the rear end and the yoke slides easily. Tranny mount looks tight. Could it be the front driveshaft? Sometimes when I brake hard and the truck comes to a complete stop it will do it too.
View 14 RepliesI am having a lot of issues with my 2002 ford escape, a while if I drive the truck acts normal, but after driving it starts missing when beginning to accelerate at a dead stop check engine light starts flashing pulled codes coming up with #4 cylinder misfire and #5 cylinder misfire detected, also a catalyst system below threshold bank 2, I have had the vacuum lines repaired and still no changes and went through and changed my grade of fuel from regular unleaded fuel to premium fuel, actually went worse with using premium fuel. I was thinking of replacing all three coil on the front of the motor, putting new plugs in it and seeing what that does.
View 2 RepliesSo of course the dealership isn't going to diagnose this since "the car's not supposed to be driven that way" - but I get a nasty rumbling noise when I accelerate from a dead stop with wide open throttle. It only lasts for the first few thousand RPMs in first gear, and after that it is gone.
I was guessing that it might be the transfer case or something like that, but it's really hard to tell. I do have AWD. I did not have any such problem in my previous GS, which was a 2007 (current is a 2010). It's worse when I accelerate around a corner, and it also makes a small noise when I'm going above 80ish mph, which of course the dealership isn't going to diagnose either.
The car is manual, 95.000 KM. The problem is everytime i put the car in gear and start rolling, I hear a loud thump/clunk coming from the underside of the engine.
The only mods on the car are intake, a tune and a dog bone insert. The clanking is way more apparent when i'm in reverse. Whether i'm backing out of my uphill driveway or on a flat surface, EVERYTIME the car is at a dead stop and I give it throttle, something clanks...
My mechanic had lifted the car. He thought it might have been suspension, but he ruled that out. He believes that it is in fact the dog bone insert that is faulty. Upon further inspection, the red insert (from USP I believe) had cracked. although the insert was visibly broken (I've had it for barely 5000 km's, WTF) I'm not entirely sure that that is what's making the clunking sound because that sound was there from before I had put the dog bone insert in place.
I have a 2001 Camry LE, 4 cyl, 2.2 liter, automatic transmission, 163Kmiles on it.
I'm hearing what sounds to me rather like a grindy sound at around 1400-1600 RPM. Initially the Camry seemed to do it only after getting into 2nd gear at about 10MPH, but now i see that it is associated with RPM and not the gear so much (the noise is less frequent and less loud in 2nd and 3rd gear- not noticing it ever at above that). I should say that the Camry has been making lots of noises since a new exhaust was put in by a cheap Bosnian shop.
It seems to only make that particular grindy noise when starting from a dead stop, but not if i was already coasting at all. So far as i can tell it seems to only happen about half the time- if I'm accelerating very slowly it doesn't seem to happen much. If i start climbing a hill after a dead stop it seems to come on fairly reliably.
It does not seem to make the noise when passing down through 1600 RPM while slowing down or revving down.
When i started the Camry up today, the noise cropped up well before i got to 8MPH (where it typically shifts into 2nd gear). Which is to say the noise appeared before it even started to shift out of 1st gear.
If i stay in Drive or Reverse and apply the brake so as to not go anywhere, the noise generally starts around 1600RPM. Since the car isn't moving, i think this might rule out the transmission. I hope.
However when in Neutral or Park and i bring the engine up to 1600RPM and beyond, the noise does not appear. So that's perhaps not so good. Of course my car idles a lot better/smoother in N and P than it does in D or R. It's rather rough idling in D and R.
I'm hoping maybe it's a vibration issue- something like harmonic amplification- where something only rattles in a certain frequency range. I pulled up next to a brick wall, kept on the brake, went into D and got up near 1600RPM and the reflected noise does strike me more now as maybe being less a grindy noise and more of a rattly vibration.
The Bosnian shop who fixed up my exhaust were too quick to dismiss the noises i heard after they worked on it. I think maybe something is loose. I hope. (I could feel air leaving the flexpipe's woven area itself but don't know if this is normal.)
Going up hills increases the likelihood of the noise appearing (so i take this to be suggestive that it IS the transmission).
However on a flat road if i hit the gas to quickly get up to 1600RPM before I'm any where near auto shifting out of 1st gear, the noise also usually appears (so i take this to be suggestive that this is not the transmission). I've also gotten the noise to not appear until well into 2nd gear.
The fairly-repeatable noise appearing in the 1600RPM zone regardless of my gear position gives me some hope that the xmission is not the source of the noise. So on balance, i think there's some indication it's the transmission, but there's also evidence that the source is other than the transmission.
The noise does not occur in Neutral or Park while revving up to 1600RPM. But then too, the engine, exhaust and vibrations always seem considerably less in N or P, as opposed to being in Drive (or Reverse). Why my Camry is quieter and more smooth in N and P as opposed to D or R? In the latter two modes, i imagine the transmission is engaged? And that the transmission is unengaged in P and N? And would that make the car louder or vibrate more, at least under certain conditions? Is the engine under less load in P and N?
And are noises at certain RPMs in D or R, but not in P or N indicative of Transmission problems? I notice the shop overfilled the transmission fluid every time i've had it changed.
I have a 2000 neon, a knocking sound has started only when I get on the gas a bit harder than normal from a dead stop. It seems to last only a few seconds knock knock really fast and then its gone, does not sound like engine knock (rocker knock or persistent knock) more like a mechanical noise. Where to start ? Front breaks were done 4months ago, new rotors / pads / and 1 caliper ...
Seems it to be worse now....now starting to lean towards broken motor mount ... how to check or where to find them. Also now starting to hear while braking.
Bought an 05 FX4 SuperCab in May - been in shop twice for a "clunking" sound when accelerating from a dead stop. Dealer says it's "operating as intended" and that no damage was being if I continue to drive. I thought it was a rear problem with the limited slip. Dealer says it's the tranny and that Ford is looking into the problem (apparently quite a few are coming back). She runs smooth and shifts fine once she gets going. Just starting from a complete stop feels painfully wrong.
View 14 RepliesWonder if its dry driveshaft slip splines? Only happens when leaving a dead stop under hard acceleration. Hard to describe sound, but seems to be coming from behind me, almost sounds like 2 broken pieces of steel snapping past each other. frame is o.k., leaf springs are o.k. , doesn't do it when shifting between gears or if I gently take off from a stop. I don't think there's a grease fitting for the driveshaft where the splines are (where the 2 piece shaft takes up slack for being loaded or unloaded) may have to take that apart once the weather breaks and see what i find. my 1st ranger never had this issue after 200K miles. this truck is now at 145K but its almost 20 years old. I've read somewhere before about pulling the shaft apart & greasing the splines up. does this sound like a possibility for whats happening? not sure what else it could be.
View 3 RepliesI'm still getting used to my prius and hybrids in general so there are a few things that I still don't know about them. But what what makes that cool whirring sound you hear when accelerate from a stop or coast? It's got a cool scientific buzz.
View 6 RepliesI'm getting some vibrations from my '06 2.0T. The car tries to jerk forward at a dead stop, RPMs jump about 100-200RPM. It kinda feels like stalling a manual transmission, only milder. The car is burning a bit more oil than it should.
Many claim it could be a faulty PCV Valve. Since I'm a little on the broke side and my car is out of warranty, what should I look for to tell if the valve or the hose is faulty?
I recently acquired a 2003 Camry with 150,000mi. its has a rough take off from stop and when I accelerate it make a rattling/grinding sound. the sound disapates after around 30mph. Ive changed trannyfluid, oil change next is plugs and all that good stuff since I do not know when it was done last.
View 4 RepliesI have a passat glx 4motion v6 when I am parked or at a dead stop my power steering doesn't work but if i give it some gas its fine. Even in park if I turn the wheel and give it a lil gas it works otherwise it doesn't and yes I've checked the power steering fluid....
View 1 RepliesTowing with my 07 F150. I now have a noise all of a sudden. I worry that is the rear end going out. As I accelerate normal from a stop, I , for one feel bump-clunk sensation, as if I have a bad u joint. 2nd I now have a "whip whip whip" whirring sound, sound character speeds up as I speed up.
I hope the sound is the brakes, because I know they are getting down to the end of their life.
So what I might have thought to be a transmission lag may be actually a dead zone in the pedal. When pressing the pedal from dead stop nothing happens until you press the pedal down further. Any way to reduce that or eliminate?
I'm referring to NA 2.5L engine with auto trans.
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 RepliesI have a low drone sound when accelerating, what this could be? Is the Water Pump going?
View 3 Replies