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[GMCnet] UNDER LEFT FRONT HOOD A/T DIP STICK [message #109219] Mon, 20 December 2010 22:26 Go to previous message
Charles Aulgur is currently offline  Charles Aulgur   United States
Messages: 78
Registered: March 2006
Karma:
Member
The most problems I have had on our GMCs has been with some of the
modifications I have made. Some earlier post about the extended A/T
dip stick reminded me of one of then. Many years ago I made my own
extended A/T out of 1/2' diameter electrical metal conduit using an
old band saw blade with the teeth ground off for the dip stick. I
was very careful about putting on the level indicator marks using the
old dip stick for reference with the A/T pan off. I had trouble
using it to find the oil level as some of you mentioned. I got level
readings all over the place which caused me to add to much oil and
venting oil into my vent line catch container. The next time I
changed the oil and had the pan off I did some checking and found out
my problem. When I installed the dip stick the rubbing friction
would cause it to be somewhat compressed as the line would be lying
against the outer curved surface of the tube. When I pulled on the
lower end of the dip stick it would extend about the same distance
as between the full and low marks on my OEM dip stick. Also, every
time I removed it and put it back in the indicated level change
somewhat. Manny told me to take the dam thing off and go back to the
OEM dip stick and start the engine up cold and remove the vacuum
module and let the oil drain until it stops then mark that level on
your dip stick and that is the correct full level. I did and I never
have to add any oil between changes.

Chuck Aulgur
Live and learn
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