Question about 1994 GMC Sonoma
NO THIS TRANS DOES NOT HAVE A VACUM MODULE, IT IS COMPUTER CONTROLED
Posted on Nov 20, 2014
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Posted on Jan 02, 2017
On top of the transfer case is a vacuum switch with 3 vacuum lines connected to it. This switch controls when vacuum is applied to the vacuum actuator. This switch can fail partly and allow fluid from the transfer case to be sucked up into the vacuum lines and anything connected to them as well. When you replaced the actuator before, did you notice any oily fluid inside of it?
Posted on Dec 23, 2008
If your transmission is automatic, it probably has a vacuum controlled modulator located on the passenger side near the front of the transmission. It is a round component witha vacuum nipple on it's end and connects to a manifold vacuum source.
Posted on Oct 16, 2010
I Have a 1993 GMC sonoma,when I give it gas,and try to take off in 1st gear,it's like it wants to stall.I've did the full tune up on it ,even the fuel filter,and still can't figure out what the problem is.Can you please help,Thanks
Posted on Feb 22, 2011
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