GM Service Manual Online
For 1990-2009 cars only

Vehicle

Engine Code

Engine Size

High Flow (Liters per Minute)

High Flow (Gallons per Minute)

Pressure Relief (kPa)

Pressure Relief (PSI)

C15 Utility/Suburban with vacuum brakes

LM7

5.3L

10.2/11.7

2.7/3.1

9825/10514

1425/1525

C25 Suburban with hydroboost

LM7

LQ4

5.3L

6.0L

13.2/14.7

3.5/3.9

9825/10514

1425/1525

K15 Utility/Suburban with vacuum Brakes

LR4

LM7

LQ4

4.8L

5.3L

6.0L

6.2/14.3

1.65/3.8

9825/10514

1425/1525

K15 Luxury Utility Export with hydroboost

LQ4

6.0L

6.8/14.3

1.8/3.8

9825/10514

1425/1525

K15 4WD Luxury with hydroboost

LQ9

6.0L

13.2/14.7

3.5/3.9

9825/10514

1425/1525