Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSFLUIDS
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Quick Lookups: Fluids
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | w/o Rear AC | 7.50 OZS. | 0.22 L | PAG 46 | S | ||
| Air Cond Compressor Oil | w/Rear A/C | 8.50 OZS. | 0.25 L | PAG 46 | S | ||
| Air Cond Refrigerant | 1.90 LBS. | 0.86 KG | R-134a | S | |||
| Automatic Transmission Fluid | Drain and Refill | 5.00 QTS. | 4.73 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S | |
| Automatic Transmission Fluid | Overhaul | 11.00 QTS. | 10.4 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S | |
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Differential Gear Oil | Front | 2.60 PTS. | 1.23 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | Rear | 4.00 PTS. | 1.89 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Engine Coolant | 13.90 QTS. | 13.15 L | 50/50 mixture of DEX-COOL and clean, drinkable water | S | |||
| Engine Oil | 4.2L Eng | 7.00 QTS. | 6.62 L | API - SAE 5W-30 | S | ||
| Fuel Tank | 18.70 GALS. | 70.78 L | S | ||||
| Power Steering Fluid | N/A | N/A | GM Power Steering Fluid | GM Part No. 89021184. | S | ||
| Transfer Case Fluid | 2.00 QTS. | 1.89 L | AUTO TRAK II Fluid | S | |||
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.