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DIAGNOSIS AND TESTING LOW LUBRICANT LEVEL A low transmission lubricant level is generally the result of a leak, inadequate lubricant fill, or an incor- Leaks can occur at the mating surfaces of the housings, or from the front/rear seals. A suspected Leaks at component mating surfaces will probably be the result of inadequate sealer, gaps in the sealer, A leak at the front of the transmission will be from either a loose or damaged, front bearing retainer or Transmissions filled from air or electrically pow- ered lubricant containers can be under filled. Always A correct lubricant level check can only be made when the vehicle is level; use a drive–on hoist to HARD SHIFTING Hard shifting is usually caused by a low lubricant level, improper or contaminated lubricants, transmis- Substantial lubricant leaks can result in gear, shift component, synchro and bearing damage. If a leak Incorrect or contaminated lubricants can also con- tribute to hard shifting. The consequence of using lubricants is noise, excessive wear, internal bind and hard shifting. Improper clutch release is a frequent cause of hard shifting. Incorrect adjustment or a worn, damaged Worn or damaged synchro rings can cause gear clash when shifting into any forward gear. In some TRANSMISSION NOISE Most manual transmissions make some noise dur- ing normal operation. Rotating gears can generate a Severe, obviously audible transmission noise is generally the result of a lubricant problem. Insuffi- REMOVAL AND INSTALLATION TRANSMISSION REMOVAL (1) Shift transmission into first or third gear. essary to access the bottom of the shift lever at the Fig. 3 Drain and Fill Plug Locations 1 – DRAIN PLUG 21 - 44 NV3550 MANUAL TRANSMISSION XJ GENERAL INFORMATION (Continued) |