My 2000 V70 with 225k miles has developed a chirp or whistle from the engine while running at idle. The sound is loudest near the intake manifold by cylinder three, the oil fill cap, and the dipstick. Yet, removing the cap does not stop the sound, so it's likely not pressure from the PCV system (which I cleaned last year).
Here's a video of the chirping.
I completed a compression test and the numbers were solid and similar to my previous test in 2021. Cylinder 2 had an odd chirp on each crank, but last time that happened on cylinder 3, so maybe I installed the tester slightly wrong.
The day before I first noticed it, I had the fuel rail out to swap the injectors in cylinder 1 and 4. Could it be caused by injectors seated incorrectly in the manifold? Is there a best practice method for reinstalling the fuel rail (ie: lubrication on the o-rings)? Thanks.
Chirp or whistle from engine at idle
-
FireFox31
- Posts: 1635
- Joined: 14 August 2006
- Year and Model: 2000 V70 NA auto
- Location: New Hampshire
- Has thanked: 158 times
- Been thanked: 300 times
Chirp or whistle from engine at idle
FireFox31
Blue 2000 V70 NA manual, "the V70" - died, reborn, totaled, donated, stripped
Green 2000 V70 NA automatic, "the G70" - awaiting 2nd rehab
Black 2000 V70 NA automatic, "Geronimo" - rescued, rehabilitating
Blue 1998 V70 T5 manual, "the T5M" - awaiting rehab
Blue 2000 V70 NA manual, "the V70" - died, reborn, totaled, donated, stripped
Green 2000 V70 NA automatic, "the G70" - awaiting 2nd rehab
Black 2000 V70 NA automatic, "Geronimo" - rescued, rehabilitating
Blue 1998 V70 T5 manual, "the T5M" - awaiting rehab
-
abscate
- MVS Moderator
- Posts: 35299
- Joined: 17 February 2013
- Year and Model: 99: V70s S70s,05 V70
- Location: Port Jefferson Long Island NY
- Has thanked: 1505 times
- Been thanked: 3818 times
Sounds more mechanical than vacuum, can you take off the serp belt and retest?
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
-
454cid
- Posts: 1254
- Joined: 6 January 2022
- Year and Model: 1996 850
- Location: United States
- Has thanked: 145 times
- Been thanked: 129 times
I suspect it's a bearing, like maybe the serpentine belt tensioner pulley, or maybe where it pivots.
1996 850
1999 S70 GLT (sold after deer hit)
2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400
1999 S70 GLT (sold after deer hit)
2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400
-
BlackBart
- Posts: 6501
- Joined: 10 December 2016
- Year and Model: 2004 XC70 BlackBetty
- Location: Over the far far mountains
- Has thanked: 927 times
- Been thanked: 884 times
^^ Agree with these two. that's mechanical. Or you have a very musical engine.
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty
1994 850T5 wagon
2004 XC70 wagon BlackBetty
-
FireFox31
- Posts: 1635
- Joined: 14 August 2006
- Year and Model: 2000 V70 NA auto
- Location: New Hampshire
- Has thanked: 158 times
- Been thanked: 300 times
Without a serpentine belt, how long can I idle the car without causing problems? How far/long could I drive it? Thanks.
FireFox31
Blue 2000 V70 NA manual, "the V70" - died, reborn, totaled, donated, stripped
Green 2000 V70 NA automatic, "the G70" - awaiting 2nd rehab
Black 2000 V70 NA automatic, "Geronimo" - rescued, rehabilitating
Blue 1998 V70 T5 manual, "the T5M" - awaiting rehab
Blue 2000 V70 NA manual, "the V70" - died, reborn, totaled, donated, stripped
Green 2000 V70 NA automatic, "the G70" - awaiting 2nd rehab
Black 2000 V70 NA automatic, "Geronimo" - rescued, rehabilitating
Blue 1998 V70 T5 manual, "the T5M" - awaiting rehab
-
BlackBart
- Posts: 6501
- Joined: 10 December 2016
- Year and Model: 2004 XC70 BlackBetty
- Location: Over the far far mountains
- Has thanked: 927 times
- Been thanked: 884 times
Others may correct me, but I'd say none. No water pump, right? Maybe a couple of minutes, just to test the noise.
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty
1994 850T5 wagon
2004 XC70 wagon BlackBetty
-
454cid
- Posts: 1254
- Joined: 6 January 2022
- Year and Model: 1996 850
- Location: United States
- Has thanked: 145 times
- Been thanked: 129 times
The serpentine belt drives the power steering pump, the AC compressor, and the alternator. I'd guess you could drive it as far as your battery will last, and you can muscle the steering without getting too hot from no AC?
I don't really think you need to drive it for diagnosis though, do you?
On my truck, and other vehicles the water pump is driven by the accessory belt/belts, but the inline 5 Volvo engines run it with the timing belt, so there's no overheating issue with removing the serpentine belt. I think that's common on engines with timing belts.... and unfortunately, on some timing CHAIN Ford engines..... chain, so oil bath....bad things happen when the pump leaks.
1996 850
1999 S70 GLT (sold after deer hit)
2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400
1999 S70 GLT (sold after deer hit)
2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400
-
abscate
- MVS Moderator
- Posts: 35299
- Joined: 17 February 2013
- Year and Model: 99: V70s S70s,05 V70
- Location: Port Jefferson Long Island NY
- Has thanked: 1505 times
- Been thanked: 3818 times
About one hour drive with a good battery. You could probably idle it for 3-4 hours
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
-
- Similar Topics
- Replies
- Views
- Last post