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?
vacuum gauge reading.
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vacuum gauge reading.
Jim Chance
710M
All my post fully incorporate the Dunning-Kruger effect
710M
All my post fully incorporate the Dunning-Kruger effect