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Master
1,985 Answers
- Posted on Dec 09, 2009
Re: 1997 GMC Sierra 5.7 changed master cylinder calipers...
Check under your master cylinder,is there another clyinder below with one line in and one line out,if you do I found this is for the Abs to the rear,I had to replace this it was full of air,and did exactly what yours is now
Any hissing sounds? Sould be your power brake booster or related vacuum hoses
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