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1998 V70 manual trans backfire on 1-2 shift V70-XC70

posted by  Mike91 on  Tue Feb 12 17:31 CST 2013
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last visit: Wed Sep 17 19:52 CST 2014
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Hi Klaus,

I had not noticed previously but the effect you described is happening. If I accelerate in any gear, then push in the clutch and simultaneously release the throttle, the engine revs increase several hundred RPM in the next 1-2 seconds then drop back to idle RPM.

The 1998 engines have a throttle cable, I confirmed that nothing is mechanically sticking when the throttle is released. What causes the overrev since the throttle plate immediately closes when I release the throttle ?

Can you point me to a good writeup on removing and cleaning the throttle body and IAC ?

The setup looks similar to my 940. I have never had to clean the 940 throttle body - the car has always run well and has about 190K miles now.

Thanks,

Mike






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New 1998 V70 manual trans backfire on 1-2 shift [V70-XC70]
posted by  Mike91  on Mon Feb 11 21:44 CST 2013 >


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