C70 T5 ME7 - Throttle Sticking Wide Open?

DSK · Nov 28th, 2019, 08:54

Oddly out of the blue, my 2000 ME& C70 T5 auto, has been sticking at wide open throttle more often than not, when I use full throttle and then back off.

The accelerator returns (not getting stuck down in the carpet etc) but the car continues to accelerate like my foot is still planted.

ETM was replaced by Volvo last year (approximately 40,000 miles covered since) and there seems to be no signs of a ETM issue and the rest of the car is fine.

Just thought I'd share this for the forum knowledge base.

Its been suggested that the throttle bodies can get build up and first place to start is to clean the throttle body. This is being done tomorrow at Kings Volvo.

Secondly its been suggested to replace the TPS sensor.

SteveSarre · Nov 28th, 2019, 19:05

Hi DSK

If you have a cheap bluetooth OBD2 dongle, which you can use with Torque on an android phone, then you can monitor the sensed position of the throttle as you press the pedal..

Useful for reading codes as well.

HTH
Steve

Dippydog · Nov 28th, 2019, 20:16

Could it be a sticking throttle position sensor which is located down beside the throttle pedal?

DSK · Nov 30th, 2019, 13:29

The car was serviced at King Volvo (Indy with the original MRG crew). ETM removed, looked pretty damn sweet despite the miles, but gave it a clean and PCV was mint also.

Now whilst the car has not done it since posting and not done it on the way to Kings either, I;m convinced it has to be something else. So thank for the replies, next I will check the TPS as suggested in the posts above.

Nov 28th, 2019, 08:54	#1
DSK C70 T5 Last Online: Mar 23rd, 2022 21:00 Join Date: Sep 2006 Location: Midlands	C70 T5 ME7 - Throttle Sticking Wide Open? Oddly out of the blue, my 2000 ME& C70 T5 auto, has been sticking at wide open throttle more often than not, when I use full throttle and then back off. The accelerator returns (not getting stuck down in the carpet etc) but the car continues to accelerate like my foot is still planted. ETM was replaced by Volvo last year (approximately 40,000 miles covered since) and there seems to be no signs of a ETM issue and the rest of the car is fine. Just thought I'd share this for the forum knowledge base. Its been suggested that the throttle bodies can get build up and first place to start is to clean the throttle body. This is being done tomorrow at Kings Volvo. Secondly its been suggested to replace the TPS sensor. __________________ 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

Nov 28th, 2019, 19:05	#2
SteveSarre Premier Member Last Online: Apr 17th, 2024 17:43 Join Date: Oct 2004 Location: London/West Country	Hi DSK If you have a cheap bluetooth OBD2 dongle, which you can use with Torque on an android phone, then you can monitor the sensed position of the throttle as you press the pedal.. Useful for reading codes as well. HTH Steve __________________ V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)

Nov 30th, 2019, 13:29	#4
DSK C70 T5 Last Online: Mar 23rd, 2022 21:00 Join Date: Sep 2006 Location: Midlands	The car was serviced at King Volvo (Indy with the original MRG crew). ETM removed, looked pretty damn sweet despite the miles, but gave it a clean and PCV was mint also. Now whilst the car has not done it since posting and not done it on the way to Kings either, I;m convinced it has to be something else. So thank for the replies, next I will check the TPS as suggested in the posts above. __________________ 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

Nov 28th, 2019, 20:16	#3
Dippydog Premier Member Last Online: Yesterday 18:24 Join Date: Jun 2016 Location: S****horpe	Could it be a sticking throttle position sensor which is located down beside the throttle pedal?

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