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DAE miss how we used to diagnose with just a vacuum gauge and a timing light?
Spent last Tuesday chasing a rough idle on a 2004 Silverado with a $3,000 scan tool, and it was a cracked vacuum line I could have spotted in 20 seconds with the old gauge my first boss in Dayton made me buy back in 1998, so I am curious if any of you still keep the old tools within arm's reach or have they been boxed up for good?
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karen_hart7d ago
A vacuum gauge reads engine vacuum, not leaks in the line itself, so it would have shown a low or bouncing needle pointing you in that direction. It is still the fastest way to rule out a vacuum problem before you even open the hood. Mine hangs on the wall next to the timing light, both still get used.
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