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[FIXED] Corsa D squeaking when accelerating after warm up

18K views 84 replies 8 participants last post by  Harry. 
#1 ·
Squeaking noise coming from the engine bay, I went to Vauxhall garage and got an original rocker cover for my engine, still hasn’t seemed to fix my problem, insane vacuum build up in the engine. I have looked at other posts possibly pcv is the culprit bought from Vauxhall today will replace, I replaced my coolant temperature sensor which has definitely improved how the car runs. I’m looking for a possible fix my mechanic did say it’s definitely not the water pump. I have a Corsa D facelift 2012 model
 
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