Brand: Mazda B4000 shifts hard in lower gears only - Minneapolis Star Tribune
Q: I have a 1997 Mazda B4000 with the 4. 0-liter V6 engine and 5R55E 5-speed electronic transmission. It shifts hard in the lower gears only. It now shifts better in the higher gears but still shifts hard in the lower gears. It gets worse as the transmission gets hotter. A: The Mazda transmission service literature in my ALLDATA database points to several possible causes for harsh shifts, including high idle speed, low fluid level, throttle position sensor (TPS) malfunction, worn transmission oil pump, worn... You might also try manually upshifting the lower gears at low engine rpm to encourage earlier and hopefully softer shifts. Q: I have a 2009 Ford Ranger with the 4-cylinder engine, automatic transmission, two-wheel drive and no A/C. When I park in the garage and turn it off, for about a minute I hear a sound like an owl hoot coming from under the vehicle. After shutting down the engine, wait for the noise to stop, then apply the brake pedal. There should be a “reserve” of vacuum in the brake booster to give you several power-assisted brake applications before the vacuum is. Source: www.startribune.com
