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

Windshield Wiper System Operation

The windshield wiper motor module is part of the windshield wiper motor cover and controls wiper motor operation. The accessory voltage supply circuit to the windshield wiper motor assembly is used to operate the wiper motor in all modes. The windshield wiper motor is a 2 speed motor and is operated at low speed in all modes except HIGH.

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Common Engine Codes

Code P0420 Catalytic Converter Failure

To control emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx), a three-way catalytic converter is used. The catalyst within the converter promotes a chemical reaction which oxidizes the HC and CO present in the exhaust gas, converting them into harmless water vapor and carbon dioxide. The catalyst also reduces NOx, converting the NOx to nitrogen.

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