Vehicle brought in for internal engine noise. Has medium pitch hollow knock heard loudest at lower front of intake manifold. Knock occurs approx once per second at idle and increases proportionally with RPM increase. The cycle is about 1\10 with crank RPM....

FIX posted 6/2/2000

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle