PS Magazine - TB 43-PS-440
PS, The Preventative Maintenance Monthly
ISSUE 440
JULY 1989
cucv .±²
echanics, a sluggiSh shifting trans-
mission on a CUCV may not be a seri±
ous proBlem. Here's how to trouble²
shoot the transmission:
•
Check the transmission fluid³ Not
enoug´ Fµid makes the transmission
sluggish. Add fluid if the level is low.
•
EyeBall the vacuuM lines¶ Check
·r loose or damaged vacuuM lines and
hoses. A leak in any of t¸e lines
¹
will
cause shiº problems.
Tighten loose
hoses and replace any that are dam±
aged. Then take the truck fOr a test
drive.
•
I» there is still a shift problem,
unhook the downshift electrical ¼con½
nector on the transmission.
•
Do the road test again¾ If the trans½
mission shifts right wit´ the connectoR
unhooked¿ the transmission downshift
switch is bad. It's on the accelerator
bracket under thÀ dashboard¶
Áeplace the switch with NÂN
2520-
01±²63-7282.
The switch was a DÂ
fx,
but that has changed. The ÂÃÁ code
is now PAÄZZ.
Replace transmission
downshif switch
with NSN
2520·01·163³ 7282
All the in· on how to troubleshoot
the switch is in Para
3³²1
of TÅ
43-
0001-39-3
(Jul
88)´
´µ
JUL µ9
Not enough tension
OverloaDed drive
Pulleys wor±
Oily, greasy belt
Belt instaLLed wrong
Increasing te±sion
Using correct belt
Having pulleys replaced
RepLacinG belt
Increasing tension
²roper ventiLation,
checking belt guards
Using new belt
Using correct belt
_-.±²
Tension too tight
iI
Mismatched belts (in set)
MisaLigned pulley
Overloaded dr³ve
Installing new belt correctlY
AdjustinG tension
ReplacinG wit´ matched set
Aligning µr re¶lacing pulley
Using correct belt
JUL µ9
¶i
l¸
BeLt bottoms in groove
or worn puLLey
Worn pulley sidewalls
Inst·lling new beLt, or
having puLlEy replaced
Hav³ng p¸lLey replaced
Bent shaF¹, worn bushing
Hav³ng deFects corrected,
³mproper installation
pulLey reinstalled
Bent pulLey
Having pulley replaced
Hav³±g ¶¸lley repL·ced
Cheºking belt-guard
clEarance
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