Question about 2000 Volvo V70

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Poor Fuel Consumption 2001 V70 T5 Post Seal Change and Timing Blt

I recently had to have my camshaft seals, etc fixed do to oil leaks. I also had them replace the timing belt. Now when I drive I find the car is burning through fuel rapidly - I get about 13L/100KM. When I accelerate out of a idle position my instantaneous fuel consumption read out stated anything between 80-99L/100KM. I also believe the car is in a high gear.

I changed my Air Mas sensor about 2 months ago - could it be dead again?

Any suggestions?

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  • craig_ceppet Jan 25, 2009

    I cannot recall what the RPM were pre-fix. To be honest - I think the fuel consumption is getting better..? But is it normal to have the Instantaneous Fuel Consumption spike to 80+ L/100KM from stand still to lets say 60 KM/HR?



    I think the car revs a little high as well....does this lend credit to the coinicidence and transmission not shifting to overdrive or high gear?

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Most cars when moving off idle would hit 99lt/100klm.

From memory do you know what it used to use.

Tensioner or pulleys could be faulty and increasing drag on engine??? Have you changed fuel types???

Posted on Dec 23, 2014

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Do you remember by chance speed vs RPM before & after work done? for example : before was 2000 RPM @ 60 MPH. Now 2200 RPM @ 60MPH ? May be coincidence, and transmission not shifting to overdrive or high gear.

Posted on Jan 25, 2009

  • Mike Butler
    Mike Butler Jan 25, 2009

    Do you mean revs a little high at idle ? I guess you'd have to find another vehicle like yours and see what it revs at same speed as yours, or perhaps a dealer service dept can give you that info. Have you discussed any of this with whoever did the work on it? As far as the fuel consumption reading, yes it will spike like that on acceleration or going up a steep hill, due to vehicle is quite a load from standstill. After you get vehicle rolling, that number will come down.It will basically go up higher as your gas pedal goes down further.

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