Remove the fill plug on the transfer case and see if fluid is up to the edge of the plug!
The 1974 model 203 transfer case has a fluid capacity of 5.5 quarts. You can check the fluid level from the same hole that you fill the transfer case.
quickly!
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To check the fluid in a 1999 GMC Yukon's transfer case, locate the fill plug on the side of the transfer case. Remove the fill plug using a wrench or socket, and check if the fluid level is even with the bottom of the hole. If fluid spills out when you remove the plug, the level is sufficient; otherwise, you'll need to add the appropriate transfer case fluid until it reaches the proper level. Always ensure to use the recommended fluid type for optimal performance.
The fill plug is on the left side of the transfer case. You remove the fill plug, and the fluid should come to the bottom of the fill plug.
You will see 2 plugs on transfer case, the lower is to drain, upper is to fill or check level
Change and flush the transfer case fluid immediately.
For a 1998 Honda Passport, the recommended transfer case fluid is Honda Dual Pump Fluid or an equivalent fluid that meets the specifications. It's important to avoid using automatic transmission fluid (ATF) as it can cause issues with the transfer case. Always check your owner's manual for the most accurate recommendations and specifications for your vehicle.
on the rear of the case there is a fluid fill line next to the fill bolt. Remove fill bolt and stick your finger in.
242 transfer case uses ATF+4 transmission fluid. 247 transfer case uses a special transfer case fluid available from the dealer.
It uses Trak II transfer case fluid, GM part number 12378508. The fluid goes in a hole, use a ratchet with an extension to remove it, on the side of the transfer case.
Some people have reported a clicking noise in the transfer case when it's low on fluid, so check the level. If the level is fine, use a screen to drain the fluid through and watch for metal flakes. If you find them, the transfer case would need to be rebuilt.