Soloby Rob
Banned
Well! it might help if you told us what vehicle, fuel type, auto or manual etc etc.
There's a lot of bits moving about when an engine is running in neutral, what do you mean by a 'travelling noise'??
Come on, give us a bit more info, you never know you might just get a sensible answer.:5bsifone:
martinl
Active Member
:hysterically_laughiV6 auto,noise sounds like something turning but maybe loose, coming from around the auto box (i think)
Ta.
Hippo
Lord Hippo
Firstly I’m not a net mechanic. But I do have a v6 and have had plenty of strange noises to locate previously.
It’s a bad idea to rev an auto whilst in neutral. Not a finite answer I know. But when having auto problems ever garage or mechanic I spoke to said not to.
When the v6 auto engine is running, when the auto is in neutral or park, the engine is running. Also the input shaft to the auto gearbox is running. That’s about all you can see without taking it apart.
You’ll have to listen to where the noise is coming from. Is it the auxiliary drive belt? That drives the air con compressor (if you have air con) and the alternator, power steering pump, plus several other small pulleys.
Also the timing belt is moving. That drives the water pump, cam shafts, main crank shaft, plus some small pulleys.
Is it a rattling or whining sound? Like a bearing failed sound? Does the engine rev at 750 once warm? Does it rev at about 1100 when first switched on when cold? If you have air con, does the problem sound alter when you turn on the air con (air con clutch engages if air con fitted)? Is the big plastic cover over the engine fitted correctly. When the rubber band comes off the rear they bounce up and down causing a rattle.
Is the sound proportional to the speed of the engine revs, or the speed of the car when driving along in gear?
Below is a pic of my v6 auxiliary belt as a guide. Arrow points to the auxiliary drive belt. Second time I’ve used this tonight!
It’s a bad idea to rev an auto whilst in neutral. Not a finite answer I know. But when having auto problems ever garage or mechanic I spoke to said not to.
When the v6 auto engine is running, when the auto is in neutral or park, the engine is running. Also the input shaft to the auto gearbox is running. That’s about all you can see without taking it apart.
You’ll have to listen to where the noise is coming from. Is it the auxiliary drive belt? That drives the air con compressor (if you have air con) and the alternator, power steering pump, plus several other small pulleys.
Also the timing belt is moving. That drives the water pump, cam shafts, main crank shaft, plus some small pulleys.
Is it a rattling or whining sound? Like a bearing failed sound? Does the engine rev at 750 once warm? Does it rev at about 1100 when first switched on when cold? If you have air con, does the problem sound alter when you turn on the air con (air con clutch engages if air con fitted)? Is the big plastic cover over the engine fitted correctly. When the rubber band comes off the rear they bounce up and down causing a rattle.
Is the sound proportional to the speed of the engine revs, or the speed of the car when driving along in gear?
Below is a pic of my v6 auxiliary belt as a guide. Arrow points to the auxiliary drive belt. Second time I’ve used this tonight!
Firstly Im not a net mechanic. But I do have a v6 and have had plenty of strange noises to locate previously.
Its a bad idea to rev an auto whilst in neutral. Not a finite answer I know. But when having auto problems ever garage or mechanic I spoke to said not to.
When the v6 auto engine is running, when the auto is in neutral or park, the engine is running. Also the input shaft to the auto gearbox is running. Thats about all you can see without taking it apart.
Youll have to listen to where the noise is coming from. Is it the auxiliary drive belt? That drives the air con compressor (if you have air con) and the alternator, power steering pump, plus several other small pulleys.
Also the timing belt is moving. That drives the water pump, cam shafts, main crank shaft, plus some small pulleys.
Is it a rattling or whining sound? Like a bearing failed sound? Does the engine rev at 750 once warm? Does it rev at about 1100 when first switched on when cold? If you have air con, does the problem sound alter when you turn on the air con (air con clutch engages if air con fitted)? Is the big plastic cover over the engine fitted correctly. When the rubber band comes off the rear they bounce up and down causing a rattle.
Is the sound proportional to the speed of the engine revs, or the speed of the car when driving along in gear?
Below is a pic of my v6 auxiliary belt as a guide. Arrow points to the auxiliary drive belt. Second time Ive used this tonight!
[/quote
Wow, thanks for the reply. I'm sure the noise is'nt coming from any lose covers etc. it seems to be coming from the front nearside of the engine compartment (IS THAT THE AUTOBOX?). A friend has suggested the transmission fluid (lack of) or the torque converter. The engine does indeed idle at 750 when hot and 1100 when cold. Any thoughts???
Hippo
Lord Hippo
The auto is between the engine, and the front passenger wheel, on a right hand drive Freelander 1.
Does the gearbox work as normal? Selects each gear correctly, smoothly, and without over revving or missing gears between changes? Does reverse gear work? When in gear and you driving along, take your foot off the accelerator. Can the auto drop down each gear as the car slows down by its self? Is there any red oil leaking out of the gearbox? You may have to take off the engine under tray in order to look for signs of oil leaks as they tend to collect on the under tray, and blow off at speed. With the cover off, lie under it to try to hear where the noise is coming from.
Does the gearbox work as normal? Selects each gear correctly, smoothly, and without over revving or missing gears between changes? Does reverse gear work? When in gear and you driving along, take your foot off the accelerator. Can the auto drop down each gear as the car slows down by its self? Is there any red oil leaking out of the gearbox? You may have to take off the engine under tray in order to look for signs of oil leaks as they tend to collect on the under tray, and blow off at speed. With the cover off, lie under it to try to hear where the noise is coming from.
chromiumuk
Well-Known Member
I think you might want to employ the services of a good local garage for the trickier ones like what forms the engine & what forms the gearbox. Buy a Haynes manual & start with the simpler stuff like basic servicing & work your way up over time.
