vacuum gauge reading.

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Joined: Tue Feb 18, 2014 4:59 pm
Location: Lafayette, LA and Highlands, NC

vacuum gauge reading.

Post by JimmyC » Wed Oct 14, 2015 8:08 pm

I have been playing with a vacuum gauge on my truck and it has surprisingly low vacuum, 17 or 18 at idle and up to 19 going down hills with engine braking. Engine is i tune and compression is good.

I checked the nuts on the intake manifold not long ago and I had the brake booster and distributor disconnected.

Any thoughts?
Jim Chance

All my post fully incorporate the Dunning-Kruger effect

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