(fuel filter has been changed)
Check the exhaust flow for restriction.
(unhook the exhaust and go for a test drive
and see if the performance gets better)
Do a repost with the results and note any
improvements or changed parameters of
4X4.chevy.trucks Diagnostic Course:
This is a selfpaced course designed to
allow for each poster to proceed to the
next step at a rate that is conducive to
their own schedule and brain wave functions.
Aprentice's should feel free to challenge any
or all diagnostic steps as they wish.
This course has been formatted in a step
by step instructional layout that requires
patients, minimal skill level, honest feedback,
and willingness to accept sharp criticism and
rebute from seansoned posters, by the
Apprentice initiating the Symptom for Study.
As a selfpaced format, said Apprentice is
solely responsible for length of diagnostic
time. Also, Apprentice retains sole discretion
for accepting or dismissing any or all reccomended diagnostic
However, Apprentice is hereby notified that
deviating from the assigned diagnostic steps
may result in flaming, redicule, blatant performance evaluations, and
attacks that the more seasoned posters feel
may be warranted.
With this in mind, the NG looks forward to
your successfull graduation in this course study.
we understand you don't own the tools needed
to for the course work. The Snap-On truck comes on Frydays.
Fuel Flow : check
Exh. Flow : check
Elect. Syst. :
Vac. Syst. :
Ign. Syst. :
Just bought a blazer and while driving it home 350 miles it wouldnt go
above about 50mph. My girlfriend was pacing me cause the speedo was
broke. I tried to adjust the carbs today, wasnt to sucessful. I think my
vacum gauge isnt working or something. We changed the plugs and
installed a tach. At about 3500rpm it starts to bog down, stutter, stall
if i stay on the gas hard. I havent gotten out the timing light (raining
now) but thought I would ask if anyone had any suggestions? Also, any
way to adjust the carbs without a vacum gauge?
Oh ya...one more thing....it doesnt do it in park or nuetral at 3500.
just with a load on the motor.
Panama City, FL
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