1994 GMC Jimmy Owner's Manual - Page 251

I NOTICE: If the air cleaner is off, a backfire can cause a damaging engine fire. And, dirt caneasily get into your engine, which will damage it. Always have the air cleaner in place you're driving. when I Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil is changed. Refer to the Maintenance Schedule to determine when to change your fluid. See "Scheduled Maintenance Services" in the Index. How to Check Because this operation can be a little difficult, you may choose to have this done at a GM dealership Service Department. you If you do it yourself, be sure tofollow all the instructions here, or could get a false reading on the dipstick. NOTICE: Too much ortoo little fluid can damage your transmission. Too much can mean that some of the fluid couldcome out andfall on hot engine parts or exhaust system, starting a fire. Be sure to get an accurate reading you check your transmissionfluid. if 6-15