OK, new sound on my 2000 2WD Tundra, 115,000 miles:
Tick, tick, tick, tick-tick-tick, tick, tick. Appears to be coming from my right front wheel, though since I only hear out of one ear. . . New sound in the last month or so. Only happens when truck is 'cold', but lately that is 70-75 degrees. Goes away after 3-4 minutes. Sometimes individual ticks, sometimes several grouped together (more than one tick at a time? Can't tell).
Speed dependant, so if I lift throttle, tick remains same, and if I hit the throttle, tick is the same (accounting for speed). If I steer right or left, sound unchanged. If I apply the brakes, or parking brake, sound is the same.
It is not detonation, I know that sound well. No pebbles or nails in the tire. I just had the oil changed, no difference. New plugs and air filter (time for those anyway). No sound at idle in driveway.
So what comes to mind is wheel bearing. But Tundra wheel bearings rarely go bad, and are expensive to HAVE replaced (hard core DIY-er myself, but this is a job I'll leave to the pros (in THIS vehicle, others may be easy)).
Front of truck jacked up, and I try to wiggle the wheels top-to-bottom and side-to-side, no movement/give, except a bit in the steering rack, that I would call normal. Tires spin by hand, no sound. Well, click as brake pads shift, then a bit of sounds as pads slip over disk. . . But truck was driven a few hours ago, I will repeat this test in the morning. As a shade tree mechanic, I would call this the gold standard test for wheel bearings (up and down = ball joint, side to side = tie rod end, both = bearings).
Any ideas? Suggestions? If it is wheel bearings, can I wait to fix it?