Nobody can tell you that you need to replace the slave based on your description. Jon may be referring to the original poster. If its spongy when cold, workls fine when warm and (this is the important part) your fluid level is NOT dropping, you do not have a leak. Start with the basics and monitor the fluid level. Your issue may be mechanical, or simply due to the temp. When the temp dips below freezing here, my clutch also feels 'different'. Just the way it is.Originally Posted by filip00
Dave M