S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

95 s500 surging help

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Old Jul 1, 2011 | 09:47 PM
  #1  
Maniak's Avatar
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95 s500
95 s500 surging help

95 s500 while driving feels like you just turn the key on and off in 5-6 sec ond intervals. then it will just run fine for 5-6 miles. but today it just kept
the on and off acceleration pattern so i limped home. Idles fine, please help!!!
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Old Jul 2, 2011 | 04:02 AM
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oldsinner111's Avatar
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s320
first check condition of engine wiring harness.If its fine check condition of plugs,and wires.Clean Mass Airflow Sensor.
After that and no fix let a Auto parts scan the car.It might to be throtle posistion sensor,also as simple as fuel pumps.

Last edited by oldsinner111; Jul 2, 2011 at 04:04 AM.
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Old Jul 6, 2011 | 12:14 PM
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95 s500
is there a manual or site to find way to test TPS
thanks
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Old Jul 6, 2011 | 12:23 PM
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Look for peachparts forum and join.Lots of Techs online.
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