Hey guys, i have a strainge going on with my XSi (again) ... after its running i get a knock .... knock.... coming from under the car. This is felt in the floor and continues after the engine is off and the car is stopped. The banging seems to be coming from the back arch under the fuel filler, but i cannot be certain. However, when its doing this, if I remove the fuel cap,,, it sucks in and stops. Im guessing something is blocked... any ideas?
Cheers lads
Kev
306 (P-Reg) Fuel tank venting system
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