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WyattEarp18 · 04-02-2014, 10:47 AM

First thing I did after buying it was changed all oils and filters. That didn't fix the trans so I went to the forums and someone said to check the trans oil before starting and mark the level. Then start the truck and run it until it powers into gear. Then shut it down and wait for a couple minutes and check the oil again. It was significantly lower. If there's not a check valve then what keeps the oil from flowing right back out like its doing now?

04-02-2014, 10:47 AM	#3
WyattEarp18 Registered User Join Date: Mar 2014 Location: Elko Nevada Posts: 43	Re: TH400 fluid drainback First thing I did after buying it was changed all oils and filters. That didn't fix the trans so I went to the forums and someone said to check the trans oil before starting and mark the level. Then start the truck and run it until it powers into gear. Then shut it down and wait for a couple minutes and check the oil again. It was significantly lower. If there's not a check valve then what keeps the oil from flowing right back out like its doing now? __________________ '79 K20 Camper Deluxe '99 F-250 PowerStroke '98 Z71 4x4 Some people are like slinkies, good for nothing but make you laugh when tossed down a flight of stairs.