not sure of using a dye, but low pressure hose replace ment is easy and very cheap@$15 for the hoses and 40 mins to do the work.
m
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Martin Ingram
Colorado Springs
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)
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