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slipping tranny? 99 MV VR6 automatic
« on: December 14, 2017, 11:49:21 AM »
Im really hoping that my tranny isnt the problem. description of issue: during 3600 mile road trip i noticed that when the engine is under load, and between 2000 and 3000 RPM, the engine intermittently surges ~100-200 RPM about every 30 seconds. i can feel an instantaneous slight loss of power. the moment after the surge/slip occurs, its totally back to normal, and even when its happening the van drives fine, just w little surges. everything else w the tranny seems fine. no tranny codes.

when i downshift or accelerate to above 3000RPM it totally goes away. so, i tend to drive it at higher speeds to keep the RPMs up, but this was impractical going over the rockies in snow. any ideas of what this could be or how to troubleshoot? 

ill likely use a local mechanic that i trust, but i really dont want to be told R&R tranny if not needed. trans fluid was replaced by vw knowledgeable mechanic about 2 years ago (17k miles). i think the problem has been around since i bought the van, but it is so slight a problem, and intermittent, i didnt notice the pattern until driving it so much all at once.


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