Symptom Troubleshooting - Honda Accord 2008 Manual

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Symptom Troubleshooting
Harsh engine vibration felt in the passenger's
compartment
1. S t a r t t h e e n g i n e , a n d let it i d l e 2 0 s e c o n d s .
2. C h e c k f o r P G M - F I s y s t e m ' s D T C w i t h t h e H D S .
Are any Temporary
DTCs
or DTCs
indicated?
Y E S — G o t o t h e i n d i c a t e d D T C s t r o u b l e s h o o t i n g . •
N O — G o t o s t e p 3.
3. S e l e c t t h e A C M i n t h e P G M - F I s y s t e m , a n d c h e c k
f o r A C M s y s t e m ' s D T C s w i t h t h e H D S .
Are any Temporary
DTCs
or DTCs
indicated?
Y E S — G o t o t h e i n d i c a t e d D T C s t r o u b l e s h o o t i n g . •
N O — G o t o s t e p 4 .
4. T u r n t h e i g n i t i o n s w i t c h t o L O C K (0).
5. O p e n t h e e n g i n e h o o d .
6. S e l e c t t h e A C M T E S T i n t h e A C M I N S P E C T I O N
m e n u w i t h t h e H D S .
7. D o t h e Fr A C M S O L O F F w i t h t h e H D S .
Does
the engine
vibration
change
when
you
turn
the Fr ACM
SOL
OFF?
Y E S — T u r n t h e Fr A C M S O L t o O N , t h e n g o t o s t e p
10.
N O — G o t o s t e p 8.
8. E x i t t h e A C M T E S T , a n d s e l e c t t h e Fr A C M S O L . V
A C T I V A T I O N i n t h e A C M I N S P E C T I O N m e n u w i t h
t h e H D S .
9. C h e c k t h e f r o n t e n g i n e m o u n t w i t h y o u r h a n d .
Does
the mount
vibrate?
Y E S — C h e c k t h e m o u n t f o r d a m a g e . If n e e d e d ,
r e p l a c e t h e f r o n t e n g i n e m o u n t ( s e e p a g e 5-26). If
t h e m o u n t is O K , g o t o s t e p 1 a n d r e c h e c k .
N O — R e p l a c e t h e f r o n t e n g i n e m o u n t ( s e e p a g e
5 - 2 6 ) . •
10. D o t h e Rr A C M S O L O F F w i t h t h e H D S .
Does
the engine
vibration
change
when
you
turn
the Rr ACM
SOL
OFF?
Y E S — T h e A C M s y s t e m is O K a t t h i s t i m e . C h e c k f o r
o t h e r e n g i n e m o u n t a n d o t h e r e n g i n e p r o b l e m s
c a u s e d v i b r a t i o n . •
N O — G o t o s t e p 1 1 .
1 1 . E x i t t h e A C M T E S T , a n d s e l e c t t h e Rr A C M S O L . V
A C T I V A T I O N i n t h e A C M I N S P E C T I O N m e n u w i t h
t h e H D S .
12. C h e c k t h e r e a r e n g i n e m o u n t w i t h y o u r h a n d .
Does
the mount
vibrate?
Y E S — C h e c k t h e m o u n t f o r d a m a g e . If n e e d e d ,
r e p l a c e t h e r e a r e n g i n e m o u n t (see p a g e 5 - 2 8 ) . If
t h e m o u n t is O K , g o t o s t e p 1 a n d r e c h e c k .
N O — R e p l a c e t h e r e a r e n g i n e m o u n t ( s e e p a g e
5 - 2 8 ) . •
4-99

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