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Lurching/Hesitation under strong load(accerlation) 850

posted by  someone claiming to be Teddy Ted on  Wed Dec 7 10:24 CST 2005 [RELATED]

I have a 1995 T5-R (auto) with approixmately 98,000 miles on it.

Recently the car has been lurching under aggressive accleration. Under mild accerlation I notice nothing. However, if I really step on it and keep the pedal on the same position the car will methodically lurch.

It will accerlate...lurch...accerlate...lurch...accerlate...lurch. This sequence is consistent. It continues as long as I keep accerlating (I start to get nervous as I approach 80mph. Every 1.5-2 seconds the car will lurch as it loses accerlation and then the accerlation will come back.

And ideas are appreciated.
Thanks in advance.







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    Lurching/Hesitation under strong load(accerlation) 850

    posted by  KlausC on  Wed Dec 7 13:06 CST 2005
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    The wastegate on the turbo may be opening prematurely. Check for clogged vacuum lines down near the firewall, on the air intake line. Also check you air filter for dirt.

    Klaus
    --
    (V♂LV♂s 1975 164, 1995 854T, 1998 V70R)








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      Lurching/Hesitation under strong load(accerlation) 850

      posted by  MadeInJapan on  Wed Dec 7 14:29 CST 2005
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Sat Oct 2 06:34 CST 2010
      [RELATED]

      Bad gas could also be a culprit.
      --
      1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.








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    Lurching/Hesitation under strong load(accerlation) 850

    posted by  MadeInJapan on  Wed Dec 7 11:39 CST 2005
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sat Oct 2 06:34 CST 2010
    [RELATED]

    See if the ECU has set some codes and clear them...otherwise, sounds like it could be a clogged vacuum system (PCV) or intake.
    --
    1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.







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