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My van timming is making lots of noise where the vvti gear is it start after the ingine is warm and continue for a while when i switch off the ingine and start again its comes on and then go away and its not changing out please help me thank

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You need to change your timing chain and tensioners before it breaks and give you a massive nightmare

Posted on Nov 27, 2013

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I had a high pitch noise, didn't sound like it came from the "underside". Turns out it was one of fans that had little chips in the blades? My Audi dealer replaced it, and it's fine now.

Posted on Aug 19, 2008

  • 1861 Answers

SOURCE: Idle and gear shifting 1987 celica automatic

I would suggest hat you replace the timing belt. The noise that you hear is the belt.

Posted on Mar 05, 2009

kb8dns
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SOURCE: 2006 Dodge Gr. Caravan. Loud humming noise upon

Misalignment of the belt, incorrect belt, worn or loose tensioner, Too tight of an adjustment (many service centers do this on purpose so when the belt breaks in it becomes properly adjusted, I do not believe in this philosophy), The belt is actually one long belt called a serpentine belt.....

Posted on Feb 21, 2010

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I have a 2003 nissan serena after running far about 20 minite it start to make a lot of loud noise coming from the ingine and thee timming is not changing out what could be the problem i need some help...


These nissan serenas with the diesel engine suffer from the camshaft timing gear locating pin wearing out ,,Do not try to start the engine but remove the timing belt then take the camshaft gear off and look on the inside where it should have a cast lug that locates the gearwheel ,fit a new gearwheel if its locating lug is worn away ,then before you fit the big bolt you drill a 4 mm hole through the gearwheel into the camshaft so the hole into the camshaft goes in anout 6/7 mm drilling in from the front of the gearwheel then make a steel pin or cut a maisonary nail down to fit then refit the bolt so the head of the flanged bolt holds the pin in this will stop it going in the futrue ,yes i know its not a recomended type of repair according to the dealer but iam a old fleet vehicle fitter and this is the sort of modification that a proper fleet mechanic would ensure was carried out .

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When driving our 2001 montana, the noise gets really loud. Like a loud humming. What could be causing this noise? We had one wheel bearing replaced on the front left wheel which was a little loose, but...


"Loud humming" could describe many of the noises that your minivan may make. Let's start with the basics: do you hear the noise only when the van is in motion or also when the van is stopped? If you can hear the noise even when the van isn't moving, you're most likely looking at something in the engine compartment. Your serpentine belt and the alternator bearings (and, to a lesser likelihood, your power steering pump) are all sources of noise "in there." An A/C compressor on its last legs may also vibrate and cause a humming sound, though that's usually described as more of a "growl."

If you can only hear the noise when the car is in motion, the next question is whether it changes pitch/volume due to engine speed or due to road speed? For example, does the noise get quieter (momentarily, perhaps) when the transmission shifts gears? Or, does the noise simply get louder/change characteristics in a linear way as the van gets faster and/or slower?

Depending on the mileage on your van, the transmissions have been known to get quite noisy after a while, especially if you are doing sustained high-speed driving. The solution for that particular problem isn't cheap, as it involves replacing or rebuilding the transmission (the shift bands may be fine; the noise is caused by bearing wear, seal failure, and other sundry issues that still require pulling the transmission). A less expensive problem is that you might have a problem with one of your tires--a tire with separating belts may make a noise like this as it slowly tears itself apart. If you hit something hard with the undercarriage of the van, you might have a drive shaft that's slightly bent and hence is causing some sympathetic vibrations in the car because it's out of balance.

Depending on the cause, your humming sound may be one of those things that comes with driving an older car--or it may be a sign of the imminent failure of something serious. It's worth getting things checked out again to try to find the cause of the problem. You'll feel a lot better knowing what it is, even if it's something you choose not to fix.

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My 2004 Odyssey has recenlty developed an unknown problem. After the van has sat overnight, the next morning, after the van has been started, when I open the back passenger door it beeps like it would if...


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