whistling sound - 2.5 CRD
#11
11-25-2008, 01:42 PM
RE: whistling sound - 2.5 CRD
ORIGINAL: actd
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
if propelers are dented, whistling sound can be heard throughout the revs. so it's not the case with you.
whistling on your car I suspected comes from turbo bearing and bad oil in it. but that's just one of the options.
try to determin if the whistle is related to the engine revs or with speed.
#12
11-25-2008, 01:45 PM
RE: whistling sound - 2.5 CRD
ORIGINAL: Merlin
Hi
So very hard without being able to hear it. Have you put your head under the bonnet (hood to the US) and see what area it is coming from? Fuel pump fault, back by the tank fits all the syptoms you discribe but that's at the back and you say the noise is from the engine area. So could be water pump, alternator, timing belt idler so hard to say but none of them would give you your faults you discribe. The faults you discribe sound more like fuel starvation issues and would need to diagnose this properly.
Hi
So very hard without being able to hear it. Have you put your head under the bonnet (hood to the US) and see what area it is coming from? Fuel pump fault, back by the tank fits all the syptoms you discribe but that's at the back and you say the noise is from the engine area. So could be water pump, alternator, timing belt idler so hard to say but none of them would give you your faults you discribe. The faults you discribe sound more like fuel starvation issues and would need to diagnose this properly.
usualy LP pumps are of a vane type, incorporated into the HP pump which is driven by the T belt.
this would be one of very few cars with such solution.
#13
11-25-2008, 01:53 PM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
ORIGINAL: Merlin
The pump is external bolted up next to the tank not like the petrols that are in the tank so easy fix.
The pump is external bolted up next to the tank not like the petrols that are in the tank so easy fix.
I'm going to run it and see how it goes - I've got breakdown recovery so I shouldn't be stranded if it does give up on me.
#14
11-25-2008, 02:02 PM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
ORIGINAL: I wonder
turbo is on whenewer the engine is running.
if propelers are dented, whistling sound can be heard throughout the revs. so it's not the case with you.
whistling on your car I suspected comes from turbo bearing and bad oil in it. but that's just one of the options.
try to determin if the whistle is related to the engine revs or with speed.
ORIGINAL: actd
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
if propelers are dented, whistling sound can be heard throughout the revs. so it's not the case with you.
whistling on your car I suspected comes from turbo bearing and bad oil in it. but that's just one of the options.
try to determin if the whistle is related to the engine revs or with speed.
Will let you know how it goes on.
#15
11-26-2008, 04:22 PM
RE: whistling sound - 2.5 CRD
ORIGINAL: I wonder
do you mean that diesel voyager has electric, low pressure pump by the fuel tank?
usualy LP pumps are of a vane type, incorporated into the HP pump which is driven by the T belt.
this would be one of very few cars with such solution.
do you mean that diesel voyager has electric, low pressure pump by the fuel tank?
usualy LP pumps are of a vane type, incorporated into the HP pump which is driven by the T belt.
this would be one of very few cars with such solution.
#16
12-03-2008, 06:15 AM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
ORIGINAL: actd
I started it this morning and then gradually brought the engine speed up - at 2000rpm the whistling started, but stopped again almost immediately as I increased the speed further, brought the speed down and then back up gently, and same again. The noise stopped altogether within 30 seconds of driving, so does sound like it could just be the oil not circulating properly at startup. This evening, I started it up and let it idle for 30 seconds or so, and the whistling went away more quickly. I think for the sake of about £40, it's worth having the oil and filter changed with a top quality synthetic oil, if nothing else, it will give me peace of mind about what's in it.
Will let you know how it goes on.
ORIGINAL: I wonder
turbo is on whenewer the engine is running.
if propelers are dented, whistling sound can be heard throughout the revs. so it's not the case with you.
whistling on your car I suspected comes from turbo bearing and bad oil in it. but that's just one of the options.
try to determin if the whistle is related to the engine revs or with speed.
ORIGINAL: actd
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
I have wondered about the turbo - do turbos come in at a particular engine speed? If so, presumably if I carefully increase the engine speed up to this point, I should hear nothing and then the whistle will increase in pitch at a fixed engine speed - is this correct?
The oil was changed recently (about 4,000 miles ago) - the car does have a full service history by the look of the service book.
if propelers are dented, whistling sound can be heard throughout the revs. so it's not the case with you.
whistling on your car I suspected comes from turbo bearing and bad oil in it. but that's just one of the options.
try to determin if the whistle is related to the engine revs or with speed.
Will let you know how it goes on.
#17
12-04-2008, 02:50 AM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
ORIGINAL: actd
More symptoms on this, and perhaps a little more serious. At the weekend, I was driving (accelerating slightly) along and the power suddenly cut completely, so I coasted to a stop. Tried starting it, and it started without a problem and accelerated away - initially slightly hesitant, but after that, no problem. That hasn't happened again (yet?), but I am still getting the whistling when revving the engine when cold (including when I first start it, in neutral) and initially, the acceleration is very sluggish, but after a few hundred yards, is back to normal for the rest of the journey.
This evening, when I started it, I pressed the throttle whilst in neutral, and there was no initial response at all - engine didn't pick up, but after a few seconds, all was normal again.
Any suggestions? I'm thinking of taking it back to the garage I got it from, but they aren't Chrysler dealers, so don't have the diagostics as far as I know - so any clues I can give them may help.
More symptoms on this, and perhaps a little more serious. At the weekend, I was driving (accelerating slightly) along and the power suddenly cut completely, so I coasted to a stop. Tried starting it, and it started without a problem and accelerated away - initially slightly hesitant, but after that, no problem. That hasn't happened again (yet?), but I am still getting the whistling when revving the engine when cold (including when I first start it, in neutral) and initially, the acceleration is very sluggish, but after a few hundred yards, is back to normal for the rest of the journey.
This evening, when I started it, I pressed the throttle whilst in neutral, and there was no initial response at all - engine didn't pick up, but after a few seconds, all was normal again.
Any suggestions? I'm thinking of taking it back to the garage I got it from, but they aren't Chrysler dealers, so don't have the diagostics as far as I know - so any clues I can give them may help.
#18
12-04-2008, 01:37 PM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
Ah, had it cut out two or three times today, and on a full tank of fuel, so not fuel surge. Cut out on fairly rapid acceleration (well as rapid as a Diesel Voyager can be), and above 3000 rpm, but easily below 4000rpm, so nowhere near any limiter. When it cuts out, it has to be switched off and back on to restart - can't be 'bump' started whilst slowing down.
Does the fact that I have to switch off and restart give any clues to anyone? Would there be any codes worth reading (I'd have to take it to a Chrysler dealer to get this done)?
Any help appreciated on this as it's the biggest problem - all others I'm slowly getting sorted out at not too great a cost
Does the fact that I have to switch off and restart give any clues to anyone? Would there be any codes worth reading (I'd have to take it to a Chrysler dealer to get this done)?
Any help appreciated on this as it's the biggest problem - all others I'm slowly getting sorted out at not too great a cost
#19
12-04-2008, 01:47 PM
RE: whistling sound - 2.5 CRD
Hi
Could be an idea to get it plugged in and get any fault codes. I would also check the wiring around the bracket on the front of the gearbox, around the security bracket that is over the engine ECU in front of the battery and over the front engine mount for shorting out. All known week spots and could be a wiring fault that is making it cut out.
Could be an idea to get it plugged in and get any fault codes. I would also check the wiring around the bracket on the front of the gearbox, around the security bracket that is over the engine ECU in front of the battery and over the front engine mount for shorting out. All known week spots and could be a wiring fault that is making it cut out.
#20
12-04-2008, 02:32 PM
Join Date: Nov 2008
Location: Hertfordshire, United Kingdom
Posts: 267
RE: whistling sound - 2.5 CRD
ORIGINAL: Merlin
Hi
Could be an idea to get it plugged in and get any fault codes. I would also check the wiring around the bracket on the front of the gearbox, around the security bracket that is over the engine ECU in front of the battery and over the front engine mount for shorting out. All known week spots and could be a wiring fault that is making it cut out.
Hi
Could be an idea to get it plugged in and get any fault codes. I would also check the wiring around the bracket on the front of the gearbox, around the security bracket that is over the engine ECU in front of the battery and over the front engine mount for shorting out. All known week spots and could be a wiring fault that is making it cut out.
I'll speak to the garage I got it from to see what they can do, but as they aren't Chrysler dealers, they may not have the correct diagnostics, so may end up going to a dealer to get it analysed.