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 Pickup/Crew Cab w/vacuum brakes, 7200 GVW

LU3

LR4

LM7/L59

4.3L

4.8L

5.3L

10.9/12.4

2.9/3.3

9825/10514

1425/1525

K 15 Pickup w/vacuum brakes, 7200 GVW

LU3

LR4

LM7/L59

4.3L

4.8L

5.3L

10.2/11.7

2.7/3.1

9825/10514

1425/1525

K 15, Pickup/Sierra Denali/ Silverado SS w/20" tires/ Crew Cab w/vacuum brakes

LQ4

6.0L

13.2/14.7

3.5/3.9

9825/10514

1425/1525

C/K 25/25HD/35, Pickup/Chassis/Crew Cab w/hydroboost

LQ4

LLY

L18

6.0L

6.6L Diesel

8.1L

13.2/14.7

3.5/3.9

9825/10514

1425/1525