When engine is started from cold, the cold start system would be working and this would cause the engine rpm to increase. The increase in the rpm seems to be causing something to roar louder than normal but without knowing what is causing the noise, it is not possible to provide any definite suggesstions.
Roaring noises that occurs only when starting from cold can be caused by beltings, pullies, engine vacuum, clutch fans (if equipped) exhaust. You ned to find out what is causing the noise.
Friday, March 23rd, 2012 AT 11:54 AM