Honda Accord 2008 Manual page 99

07/11/02 09:06:13 61TA0000_040_0053
Engine Mount Control System
Troubleshooting (cont'd)
13. Disconnect the upper vacuum hose (A) from the
engine mount control solenoid valve (B), and
connect a vacuum pump/gauge, 0 30 in.Hg, to the
hose. Apply about 20 in.Hg of vacuum, and wait
20 seconds.
＊０４
B
Does the engine mount hold vacuum?
YES
NO −
has a vacuum leak. Repair as needed.
4-52
−
− Go to step 14.
Either the vacuum hose or the engine mount
14. Release the vacuum, then apply vacuum again.
Is there a noticeable change in idle smoothness
with and without vacuum applied?
YES − Go to step 15.
NO − Replace the front engine mount.
15. Connect a vacuum pump/gauge, 0 30 in.Hg, to the
engine mount control solenoid valve (A).
A
A
Is there manif old vacuum at idle, and a decrease
in manif old vacuum when you raise the engine
speed above 1,000 rpm?
YES − The system is OK.
−
NO Replace the engine mount control solenoid
valve.
−
＊０５