Question about 2000 GMC Jimmy
Hello, My 2000 GMC Jimmy makes a whining noise that seems to come from the transmission. It is 4-wheel drive. Plus, when I put it in 4-wheel drive, it runs okay at higher speeds but locks up when you are driving at very low speeds. It runs fine in 2-wheel drive.
Does it sound like a loud winding sound coming from the front right side? I have a 2001 Jimmy and the 4wd tries to engage when driving up steep hills and going at highway speeds. The actuator vacuum switch engaged when the transfer case vacuum switch sends the vacuumed air to the actuator. What is happening is their is either a leak in the vacuum lines, a faulty actuator switch, or a faulty transfer case vacuum switch. When the jimmy has enough air pulling in, the extra vacuum is trying to push the actuator switch in when it is not supposed to. It is a much cheaper fix than a transmission. GMC should have recalled the whole 4wd system on any of the S10's, the JImmy's, and Blazers.
Posted on Dec 06, 2012
I recently took my vehicle to a transmission shop and they had to rebuilt the transmission right through. I was recently told that the transmission is a common problem in these vehicles. Sad that GM can not fix or recall the transmisison since there is a problem.
Posted on Jan 02, 2009
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Posted on Jan 02, 2017
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