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2001 Volvo S60 throttle problem

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2001 - 2007 V70
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2001 - 2009 S60
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Alexis2929
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Year and Model: 2001 S60
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Alexis2929

2001 Volvo S60 throttle problem

Post by Alexis2929 » Sat Aug 10, 2019 11:49 am

I have a 2001 Volvo S60 that cuts power to the engine at around 1200-1500 rpms. If I accelerate somewhat slowly and the Rpms are there then they drop down completely to idle.
Then after a few seconds (1 or 2) it’ll accelerate normally (sometimes aggressively)
This is pretty dangerous considering I could lose power when making a turn.
also if I’m turning and it accelerates aggressively it gets kinda hard to control it on the turn

It is intermittent

I have no clue what this could be so any help would be amazing

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RickHaleParker
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Re: 2001 Volvo S60 throttle problem

Post by RickHaleParker » Sun Aug 11, 2019 5:41 pm

Where was the last time you cleaned out the Electronic Throttle Module (ETM) ? Throttle plate maybe sticking.
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Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, B8444S TF80 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger. V8 conversion in progress.

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SuperHerman
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Re: 2001 Volvo S60 throttle problem

Post by SuperHerman » Sun Aug 11, 2019 6:08 pm

Any engine lights? Codes? I believe the 2001 has the famous MM ETM - a known failure item.

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RickHaleParker
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Re: 2001 Volvo S60 throttle problem

Post by RickHaleParker » Sun Aug 11, 2019 6:36 pm

SuperHerman wrote:
Sun Aug 11, 2019 6:08 pm
I believe the 2001 has the famous MM ETM - a known failure item.
2000 & 2001 S60 Turbo & NA has the MM ETM.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, B8444S TF80 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger. V8 conversion in progress.

EngineeringBloke
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Re: 2001 Volvo S60 throttle problem

Post by EngineeringBloke » Mon Aug 12, 2019 11:19 am

The MM ETM position sensor strips wear so that the engine computer is unable to determine the position of the throttle over parts of the sensor track. The computer then cuts power which matches your symptoms.

New ETM is likely needed, or Xemodex can repair it. There are contact-less position sensor ETMs replacements available to avoid a re-occurance.
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Alexis2929

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