Change transmission fluid and filter 1998 mercury mystique
You will need to buy a "TRANSMISSION FILTER KIT," which will include a new transmission filter, uptake gasket, and pan gasket for your transmission. (They run about $20 or less on eBay.) Once you have done that, you will need to hoist the vehicle, and CAREFULLY remove the transmission pan by loosening one bolt a little at a time without removing them, and breaking the old gasket free (hopefully without making too much of a mess of transmission fluid). About half of the transmission fluid (about a gallon and a half) will be in the pan (the rest in the torque converter). It is usually sufficient to replace just the amount of oil in the pan (otherwise you need to remove the torque converter inspection plug on the bell housing and crank the engine to expel the seal, draining the other half of the fluid, then replace the bell housing seal).
Once you have drained away the transmission fluid in the pan, CLEAN THE PAN THOROUGHLY WITH A SHOP TOWEL, and carefully remove the bolts that secure the filter to the transmission valve body. (As I recall it is four 10mm bolts... but not sure on your year model).
Remove the filter, and remove any remnants of gasket on the uptake chamber between the filter and the valve body. MAKE SURE YOU REPLACE THE SMALL GASKET AT THE TOP OF THE FILTER WITH A NEW ONE, OTHERWISE THE TRANSMISSION WILL SLIP DURING THE 1-2 SHIFT DUE TO AIR BEING SUCKED-IN (been there).
Check for correct torque specifications for the filter mounting bolts before tightening them and DO NOT OVER-TIGHTEN THE RETAINING BOLTS.
Once you have replaced the filter, and your pan is clean, scrape away all remnants of gasket material from the mounting surfaces, and position the new filter. (This is easier if you use a tiny amount of silicone RTV to hold the gasket in place and keep it aligned with the pan mounting holes).
Replace the pan, tighten the bolts to spec, re-fill the transmission with the appropriate amount of NEW ATF, then test.
Jul 19, 2014 |
Cars & Trucks