V70: General - Diagnostic Help

KM73 · Jun 30th, 2016, 12:31

I currently have 2no. problems with my Volvo which are baffling both me and the garages that it has been to, so I was wondering if anybody on here is able to help.

The car is a 2009 (59 registration plate) V70 2.4 diesel, c175hp, under the bonnet the engine says D5 on it but it is not badged as such. It's a manual gearbox.

1. When accelerating in gears 4, 5 or 6 between 2-3000rpm the rev counter will every now and again (maybe 2 or 3 times in a 1 hour drive) shoot up quickly with no noticeable increase in engine power or acceleration. I originally thought that it might be the clutch slipping but the clutch has been checked and is fine.

2. I have to top up the engine coolant every 1-2 weeks and have had to for about 6 months now. I do about 500 miles a week. Neither me or any garage that it has been to can find any sign of a leak.

I don't know if the two problems above are related in any way or completely separate but any help that people can give would be very much appreciated.

Apart from these two issues the car drives absolutely fine.

cheshired5 · Jun 30th, 2016, 12:37

1. When the rev counter shoots up, does the engine speed increase also?

2. Dig out and flip the expansion cap seal as a possible free fix.
What are you topping up with and how much are you having to put in?

KM73 · Jun 30th, 2016, 13:07

1. The engine makes a whirring noise (hard to explain it exactly) which draws attention to the rev counter shooting up for a second or two before settling back down.

2. Topping up with Halfords ready mix coolant, probably up to or a bit less than half a pint each time.

cheshired5 · Jun 30th, 2016, 19:07

Do you have any head gasket failure symptoms?

luggsey · Jun 30th, 2016, 19:17

Doesn't this sound like water/oil feeding the turbo?

KM73 · Jul 1st, 2016, 11:42

Quote:

Originally Posted by cheshired5

Do you have any head gasket failure symptoms?

What would you suggest I look for? It's not using / losing oil but the coolant is going down regularly.

KM73 · Jul 1st, 2016, 11:43

Quote:

Originally Posted by luggsey

Doesn't this sound like water/oil feeding the turbo?

Could this be where I'm losing the coolant too then?

younger06 · Jul 2nd, 2016, 09:14

Not sure sure about Volvos but EGR coolers can develop leaks.

RM955I · Jul 2nd, 2016, 09:50

I'd start with the obvious: expansion tank, cap, radiator, heater matrix, check oil for contamination, check hoses.

Jun 30th, 2016, 12:31	#1
KM73 New Member Last Online: Jan 24th, 2017 20:06 Join Date: Jun 2016 Location: Hartlepool	Diagnostic Help I currently have 2no. problems with my Volvo which are baffling both me and the garages that it has been to, so I was wondering if anybody on here is able to help. The car is a 2009 (59 registration plate) V70 2.4 diesel, c175hp, under the bonnet the engine says D5 on it but it is not badged as such. It's a manual gearbox. 1. When accelerating in gears 4, 5 or 6 between 2-3000rpm the rev counter will every now and again (maybe 2 or 3 times in a 1 hour drive) shoot up quickly with no noticeable increase in engine power or acceleration. I originally thought that it might be the clutch slipping but the clutch has been checked and is fine. 2. I have to top up the engine coolant every 1-2 weeks and have had to for about 6 months now. I do about 500 miles a week. Neither me or any garage that it has been to can find any sign of a leak. I don't know if the two problems above are related in any way or completely separate but any help that people can give would be very much appreciated. Apart from these two issues the car drives absolutely fine.

Jun 30th, 2016, 12:37	#2
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	1. When the rev counter shoots up, does the engine speed increase also? 2. Dig out and flip the expansion cap seal as a possible free fix. What are you topping up with and how much are you having to put in? __________________ 2002 S60 SE D5 Manual 209000 miles

Jun 30th, 2016, 19:07	#4
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Do you have any head gasket failure symptoms? __________________ 2002 S60 SE D5 Manual 209000 miles

Jun 30th, 2016, 19:17	#5
luggsey The truth is out there... Last Online: Aug 10th, 2021 08:43 Join Date: Feb 2016 Location: Barnstaple	Doesn't this sound like water/oil feeding the turbo? __________________ It's a dogs life! XC70 D5 2006 244K Still chugging! CRV 2.2 2006 216K Reactivated.

Jul 2nd, 2016, 09:14	#8
younger06 Volvo Newbie Last Online: Apr 19th, 2019 15:07 Join Date: Apr 2014 Location: Naas	Not sure sure about Volvos but EGR coolers can develop leaks. __________________

Jun 30th, 2016, 13:07	#3
KM73 New Member Last Online: Jan 24th, 2017 20:06 Join Date: Jun 2016 Location: Hartlepool	1. The engine makes a whirring noise (hard to explain it exactly) which draws attention to the rev counter shooting up for a second or two before settling back down. 2. Topping up with Halfords ready mix coolant, probably up to or a bit less than half a pint each time.

Jul 2nd, 2016, 09:50	#9
RM955I Premier Member Last Online: Jun 26th, 2022 23:42 Join Date: Mar 2012 Location: Midlands	I'd start with the obvious: expansion tank, cap, radiator, heater matrix, check oil for contamination, check hoses. __________________ D5, 205 Phase 3 V70...love the grunt. Previous: 2004 (2005 facelift) 2.4 170

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