S80 D5 questions

Waynedance · Nov 3rd, 2017, 18:41

Is this normal? Rev the engine from about 1k to 1.2k and then at approx 1800k and the engine shakes.

Is this normal for these engine or do I have a misfire or other fault? No fault lights and seems to run ok. I have run a litre of moly diesel purge through the tank and used other additive.

Has anyone added extra insulation behind the dash? More to do with the noisy ac which seems a Volvo thing.

Just not quite happy with the car at the minute.

Dibble · Nov 3rd, 2017, 21:00

Quote:

Originally Posted by Waynedance

Is this normal? Rev the engine from about 1k to 1.2k and then at approx 1800k and the engine shakes.

Is this normal for these engine or do I have a misfire or other fault? No fault lights and seems to run ok. I have run a litre of moly diesel purge through the tank and used other additive.

Has anyone added extra insulation behind the dash? More to do with the noisy ac which seems a Volvo thing.

Just not quite happy with the car at the minute.

Mine doesn't do this.

Waynedance · Nov 3rd, 2017, 21:18

Will have to get it looked at, want to love it but it aint happening yet.

tt82 · Nov 4th, 2017, 06:15

Could be the gearbox torque mount and/or driveshafts.

Mr R Design · Nov 4th, 2017, 06:55

It is not normal and is definitely a fault of which I have no clue about.

However things like extra foam are not the answer as that will just be potentially masking whatever is the real problem.

Do investigate what is the actual cause of the problem as once resolved you will not only love the car but also want to marry it and have children.

Waynedance · Nov 4th, 2017, 07:05

Does my car have the vac mounts like the earlier cars?

Will check out the gearbox mount later, will it be obvious if it's shot?

tt82 · Nov 4th, 2017, 07:08

Not sure whether it will be obvious but in the family we have a C30 D5 Manual and a C70 D5 Geartronic that both do it. We found info on the forum about T5's having a similar issue and that was cured by replacing the torque mount. It helped on the C30 but didn't cure it. The driveshaft needed replacing as the CV boot had split - unable to order just a boot from Volvo - and that cured the shaking full stop.

Waynedance · Nov 4th, 2017, 08:18

Cheers for the info, driving to work today and the most annoying thing is the bloody noise from the air con, going to try and find the expansion valve.

Is the valve any easy part to change? have access to an air con machine, is there anything special needed like a bloody diagnostic machine?

This seems the same as I have must be a Volvo S80 thing.

Nov 3rd, 2017, 18:41	#1
Waynedance Senior Member Last Online: Mar 15th, 2021 22:31 Join Date: Jun 2017 Location: Nuneaton	S80 D5 questions Is this normal? Rev the engine from about 1k to 1.2k and then at approx 1800k and the engine shakes. Is this normal for these engine or do I have a misfire or other fault? No fault lights and seems to run ok. I have run a litre of moly diesel purge through the tank and used other additive. Has anyone added extra insulation behind the dash? More to do with the noisy ac which seems a Volvo thing. Just not quite happy with the car at the minute. __________________ S80 P3 SE LUX D5 Auto

Nov 3rd, 2017, 21:18	#3
Waynedance Senior Member Last Online: Mar 15th, 2021 22:31 Join Date: Jun 2017 Location: Nuneaton	Will have to get it looked at, want to love it but it aint happening yet. __________________ S80 P3 SE LUX D5 Auto

Nov 4th, 2017, 06:15	#4
tt82 Forum Support Team Last Online: Nov 28th, 2022 17:33 Join Date: Jan 2009 Location: Here.... obviously!	Could be the gearbox torque mount and/or driveshafts. __________________ The more people I meet, the more I like my dog! 2009 V70 D5 R-Design - Jeade'en

Nov 4th, 2017, 06:55	#5
Mr R Design Member Last Online: Jan 21st, 2024 15:05 Join Date: Dec 2013 Location: Oldbury, West Midlands	It is not normal and is definitely a fault of which I have no clue about. However things like extra foam are not the answer as that will just be potentially masking whatever is the real problem. Do investigate what is the actual cause of the problem as once resolved you will not only love the car but also want to marry it and have children. Last edited by Mr R Design; Nov 4th, 2017 at 07:00.

Nov 4th, 2017, 07:05	#6
Waynedance Senior Member Last Online: Mar 15th, 2021 22:31 Join Date: Jun 2017 Location: Nuneaton	Does my car have the vac mounts like the earlier cars? Will check out the gearbox mount later, will it be obvious if it's shot? __________________ S80 P3 SE LUX D5 Auto

Nov 4th, 2017, 07:08	#7
tt82 Forum Support Team Last Online: Nov 28th, 2022 17:33 Join Date: Jan 2009 Location: Here.... obviously!	Not sure whether it will be obvious but in the family we have a C30 D5 Manual and a C70 D5 Geartronic that both do it. We found info on the forum about T5's having a similar issue and that was cured by replacing the torque mount. It helped on the C30 but didn't cure it. The driveshaft needed replacing as the CV boot had split - unable to order just a boot from Volvo - and that cured the shaking full stop. __________________ The more people I meet, the more I like my dog! 2009 V70 D5 R-Design - Jeade'en

Nov 4th, 2017, 08:18	#8
Waynedance Senior Member Last Online: Mar 15th, 2021 22:31 Join Date: Jun 2017 Location: Nuneaton	Cheers for the info, driving to work today and the most annoying thing is the bloody noise from the air con, going to try and find the expansion valve. Is the valve any easy part to change? have access to an air con machine, is there anything special needed like a bloody diagnostic machine? This seems the same as I have must be a Volvo S80 thing. __________________ S80 P3 SE LUX D5 Auto Last edited by Waynedance; Nov 4th, 2017 at 10:13.

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