Posted by Tom Petroff (IL.) on Sunday, July 09, 2006 at 11:09AM :
In Reply to: OT: Cummins vacumn leak posted by Joel Wilkins on Sunday, July 09, 2006 at 10:52AM :
Joel,
The vacum pump is located on the lower left side of the engine under the fuel injection pump. Bolted to the front timing cover same as fuel inj. pump.
Star there checking hoses for a leak.
The vacum pumop gives very little trouble, but it could be bad. Make sure you have no leaks first. TGP