# While conducting a pressure test on an A/C system, the ambient temperature is 80°F, the low-side gauge reads low (8 psi), and the high side also reads low (85 psi). Which of these could cause these readings? Low refrigerant level Normal operation Bad compressor A high-side restriction

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

#### Solutions

Chapter
Section
Chapter 55, Problem 11RQ
Textbook Problem

## While conducting a pressure test on an A/C system, the ambient temperature is 80°F, the low-side gauge reads low (8 psi), and the high side also reads low (85 psi). Which of these could cause these readings? Low refrigerant level Normal operationBad compressorA high-side restriction

Expert Solution
To determine

The correct statements about pressure test which could cause such pressure readings.

### Explanation of Solution

Given:

Temperature = 80 ℉.

High side pressure = 85 psi.

Low side pressure = 8 psi.

At 80 ℉, the low side pressure should be 86.7 psi and the high side pressure should be 598 psi, required for operation.

The low side gauge reads 8 psi and the high side gauge reads 85 psi, these readings are below the regular operating reading conditions of the air-conditioning system. This kind of result would be generated due to only one reason that is, the compressor is not functioning or it is broken down...

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