06-19-2008, 06:53 PM
Join Date: Apr 2008
99 Suburban bogging down
Wondering if anyone has any idea what my problem may be.
I have a 1999 K1500 Suburban with a 350 in it.
Bought it used two years ago. Currently has
about 164,000 miles on it.
Have had to replace fuel pump twice (last time
about 2 months ago). Other than that, has been
Just in the past couple weeks, it has started bogging
down on acceleration. If I ease into the pedal, it's
ok, and usually gets up to speed, but if I step on it,
it boggs down and even starts to make a popping noise
from under the hood.
Replaced fuel filter, no change, it still does it.
One thing I have found is that if it starts to bogg down,
if I put it in neutral, turn the key off, and then start
it back up, problem will go away for a few minutes,
and it will accelerate normally.
I've also tested it sitting still. I can start it, and
rev it up to 3000 rpm or so, lets say 5 times. Out
of those 5 times, it may rev up fine 3 times, and
bogg down the other 2.
Any thoughts as to what it may be?
Thanks in advance!