Volvo RWD 700 Forum

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SURGING 700 87

MY 760 TURBO SURGES AT IDLE AFTER ABOUT 15-20 SECONDS AT A STOP LOOKED AROUND FOR THE OBVEOUS BUT NEED SUGGESTIONS









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Re: SURGING 700 87

Clean the throttle body.

Check for loose bolts at the compressor overrun valve. I eventually ended up with grade 8 socket head cap screws, lock washers, a new gasket, and red loctite to hold the sucker together.

Potential vacuum leak at the AMM to compressor hose (expensive part...>$100)

Probable leak at the AIC to intake tube hose.

Possible leaks at the intercooler intake/exhaust hoses. I use a third hose clamp in between just slightly tight to inhibit pressure bulges.

If the car doesn't respond immediately to throttle it's almost certainly a vacuum leak due to deteriorated induction hoses. The car IS 14-15 model years old.








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Re: SURGING 700 87

I cured my b230F by removing the throttle body and cleaning it out and the intake manifold.

Mark







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