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Re: Harsh downshifting when passing and backfires V70-XC70 2000

posted by  someone claiming to be Eric G. on  Wed Apr 11 02:21 CST 2001 [RELATED]

Ralph,

For your harsh tranny downshifts, there is an actual TSB for this which is a complete transmission oil flush. They did it on mine. Look for a brownish color in your oil as it doesn't have the hydraulic properties anymore. The reprogramming thing will absolutely do nothing in my opinion.

As for the backfire.. I unfortunately have no good answer for such a new car. One thing for sure is that the firing and timing is electronically controlled in your vehicle (no distributor/cap, no rotor, no plug wires) so there may be something wrong with the coil packs (I'm only assuming here). Other than that, I'd start suspecting the fuel injection system. Did your dealer checked for codes? Did they call the tech hotline?

Good luck. Hey, if I were in your shoes and none of the dealers are able to fix my problems, I'd ask a Volvo rep to have a serious look at the XC and give him a reasonable deadline to get everything fixed. Otherwise.. lemon law. This is totally unacceptable on a 2000.





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New Harsh downshifting when passing and backfires [V70-XC70][2000]
posted by  someone claiming to be Ralph  on Tue Apr 10 12:19 CST 2001 >


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