C70 S70 V70: - Loss of power...

soarecelegica · Oct 3rd, 2018, 21:07

Good evening. I'm new to this forum and new as a Volvo owner. I'm having some difficulty in getting this car fully working. It is a V70 2.3 t5 1998. Bought it just a week ago and in the beginning all vacuum hoses where cracked. No boost ,jumpy idling, etc. So decided to replace all vacuum hoses. All good car still doesn't have power. Checked maf values all in specs, checked vtc and works fine, diverter valve not cracked. When you drive the car at this moment turbo boost just a little bit until 2000rpm and after goes flat. A few things that I've manage to observe: the exhaust at the back of the car is very hot, idling when you start after a few minutes goes up and down 3-4 times and settles. I'm thinking now to check catalytic converter not to be clogged and to check timing maybe. Any ideas are very welcome.

DSK · Oct 3rd, 2018, 21:27

check/replace turbo control valve/boost solenoid

check maf to turbo pipe is seated correctly and tight.

pressure test recirc valve & check turbo actuator for tightness (adjust if necessary) - IPD USA have a youtube video showing how to do this.

soarecelegica · Oct 4th, 2018, 16:49

Quote:

Originally Posted by DSK

check/replace turbo control valve/boost solenoid

check maf to turbo pipe is seated correctly and tight.

pressure test recirc valve & check turbo actuator for tightness (adjust if necessary) - IPD USA have a youtube video showing how to do this.

Thanks will do that

soarecelegica · Oct 4th, 2018, 20:11

Found out the problem. Catalytic converter was clogged. Thank you for your help.

Oct 3rd, 2018, 21:07	#1
soarecelegica New Member Last Online: Aug 10th, 2019 06:25 Join Date: Oct 2018 Location: London	Loss of power... Good evening. I'm new to this forum and new as a Volvo owner. I'm having some difficulty in getting this car fully working. It is a V70 2.3 t5 1998. Bought it just a week ago and in the beginning all vacuum hoses where cracked. No boost ,jumpy idling, etc. So decided to replace all vacuum hoses. All good car still doesn't have power. Checked maf values all in specs, checked vtc and works fine, diverter valve not cracked. When you drive the car at this moment turbo boost just a little bit until 2000rpm and after goes flat. A few things that I've manage to observe: the exhaust at the back of the car is very hot, idling when you start after a few minutes goes up and down 3-4 times and settles. I'm thinking now to check catalytic converter not to be clogged and to check timing maybe. Any ideas are very welcome.

Oct 3rd, 2018, 21:27	#2
DSK C70 T5 Last Online: Mar 23rd, 2022 21:00 Join Date: Sep 2006 Location: Midlands	check/replace turbo control valve/boost solenoid check maf to turbo pipe is seated correctly and tight. pressure test recirc valve & check turbo actuator for tightness (adjust if necessary) - IPD USA have a youtube video showing how to do this. __________________ 2000 C70 T5 GT Coupe 1998 S70R / 1995 Toyota Supra Twin Turbo 2007 Mercedes CLS 320 CDI / 2011 Mercedes S350 Bluetec 2007 Suzuki GSXR-1000

Oct 4th, 2018, 20:11	#4
soarecelegica New Member Last Online: Aug 10th, 2019 06:25 Join Date: Oct 2018 Location: London	Found out the problem. Catalytic converter was clogged. Thank you for your help.

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