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Old 08-03-2008, 08:55 AM
OleBones OleBones is offline
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Re: 89 Suburban Shifting Hard

Sounds like a vacuum modulator on transmission to me. LOL, that is if this even has a vacuum modulator. If it does look on the tranny and you should see the modulator with a hose going to it. Pull the hose off and see if fluid is coming out of it. If fluid is coming out of it, it is bad and needs to be replaced. They can also go bad with no fluid coming out of them.
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