Chevy Astro Van Questions

Astro van questions and answers.

1997 GMC Safari

Engine Size : 4.3 Vortec
Hi, After a long trip, I pulled into a parking space and went to back out and reverse didn't work, I have to pull in where I can only go forward now. Someone said a

1998 Chevy Asrto van.

Engine size- 4.3L Vortec.
Warning lights: just the ABS
Computer codes: EGR valve code

1996 Chevy Astro 4.3 Vortec V6.

Rear brake line replacement done by unknown shop.
Master cylinder and wheel cylinder replacement.
Rear brakes are inop. was told by repair shop that ABS pump assembly needed to be replaced.

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How Things Work

Cruise Control Function and Operation

Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at speeds above 40 km/h (25 mph). However, steep grades may cause variations in the selected speeds.

The main components of the cruise control system are:

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Common Engine Codes

Intake Air Temperature Sensor (IAT) Code P0112 Or P0113

The intake air temperature (IAT) sensor is a thermistor which measures the temperature of the air entering the engine. The powertrain control module (PCM) applies 5 volts through a pull up resistor. When the intake air is cold, the sensor resistance is high and the PCM will monitor a high signal voltage on the IAT sensor signal circuit.

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