Locating Boost Leaks

slader99 · 05-14-2008, 03:08 AM

Hello All,

Symptom: Car runs great (damn, not again!!!), turbo spools fast up to 250mm Hg then stays until shift. Checked all hoses and clamps, checked BOV. Found that the short 3" piece from the throttle body to 3000 pipe could be replaced, but wouldnt think its the problem. Also found that throttle body side BOV was old and hard (possible that clamp no longer has enough force to fully seal it against BOV) but also seems like the unlikly spot to fail.

What are your non destructive methods for finding a boost leak? I have stuck my ear all sorts of places it shouldn't be under the hood but can't loacte any suspicous noises. I would rub soapy water in any suspect places, but as the intake system would be under vaccum while parked it wouldn't do any good.......

Thanks in advance,

Colin Slade

05-14-2008, 03:08 AM	#1
slader99 Stock Join Date: Apr 2008 Location: canada Posts: 26	Locating Boost Leaks Hello All, Symptom: Car runs great (damn, not again!!!), turbo spools fast up to 250mm Hg then stays until shift. Checked all hoses and clamps, checked BOV. Found that the short 3" piece from the throttle body to 3000 pipe could be replaced, but wouldnt think its the problem. Also found that throttle body side BOV was old and hard (possible that clamp no longer has enough force to fully seal it against BOV) but also seems like the unlikly spot to fail. What are your non destructive methods for finding a boost leak? I have stuck my ear all sorts of places it shouldn't be under the hood but can't loacte any suspicous noises. I would rub soapy water in any suspect places, but as the intake system would be under vaccum while parked it wouldn't do any good....... Thanks in advance, Colin Slade