Question about 1996 Chevrolet K1500
1996 chev k1500 cheyenne 5.7L manual trans: a whining sound from drivetrain that matches vehicle speed; no different when in or out of gear, or when turning, or foot off gas pedal. Higher pitch when faster, and ''wobbles'' almost like a warped brake rotor. Those probably bad too but not this. Just recently replaced the whole rear axle/diff unit and new clutch last year. U jts assumed OK. Would a bad transfer case bearing (?) make this noise? I have also noticed recently the shifting to be ''touchy'' as in less than optimum ''syncro-mesh'' i.e., gears grind easier if I am not more careful, as if (and i have no idea if this works) the gearbox (?) lost a bolt and is off center or something. I assume the two could be related.
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Posted on Jan 02, 2017
check your rear end and make sure it has plenty of gear oil..if full then there is friction in it somewhere and it is probly getting ready to go out.
Posted on Dec 02, 2008
SOURCE: "1991 Chevy Cheyenne 4X4 K1500
The Engine Coolant Temperature (ECT) sensor is mounted in the intake
manifold and sends engine temperature information to the ECM. The ECM
supplies 5 volts to the coolant temperature sensor circuit. The sensor
is a thermistor which changes internal resistance as temperature
changes. When the sensor is cold (internal resistance high), the ECM
monitors a high signal voltage which it interprets as a cold engine. As
the sensor warms (internal resistance low), the ECM monitors a low
signal voltage which it interprets as warm engine.
Fig. 3: The ECT sensor is usually located near the thermostat housing Fig. : Engine Coolant Temperature (ECT) sensor wiring diagram Fig. : Engine Coolant Temperature (ECT) sensor temperature vs. resistance values
Fig. 1: Engine Coolant Temperature (ECT) sensor location-4.3L, 5.0L and 5.7L engines
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Fig. 3: The ECT sensor is usually located near the thermostat housing
Fig. : Engine Coolant Temperature (ECT) sensor wiring diagram
Fig. : Engine Coolant Temperature (ECT) sensor temperature vs. resistance values
Posted on May 28, 2011
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