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Engine bucks/surges, check engine light flashes/stays on S40-V40 2000

posted by  someone claiming to be Scott in DC on  Sun Jul 31 12:14 CST 2005 [RELATED]

This afternoon, my V40 with 91k miles started surging and bucking under hard acceleration (like when passing uphill) with the tranny in Sport mode. The Check Engine light flashed and went out, but the last time it happened, the light stayed on. There's no surging with the tranny in Economy mode, but I'm also not getting the full kickdown and revs that I get in Sport mode. Using only 91 octane gas from premium sources (Exxon, etc.) Any ideas?








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    Simple fix, now the 945 has tranny issues (sigh)... S40-V40 2000

    posted by  someone claiming to be Scott in DC on  Mon Aug 1 17:13 CST 2005 [RELATED]

    Turns out that one cylinder had a fouled plug and another had a bad coil. Took a while to diagnose that one, but easy to fix. Now the '94 945 won't go into overdrive...hope it's just a relay as the 700/900 FAQs say! It deserves a few problems with 210k miles on it, I guess.







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