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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 219 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONOIL COOLER LINESINSTALLATION
1999 GMC Forward Control 5.7 R, Automatic
Oil Cooler Lines: Installation
1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
- Install the TOC lines to the vehicle.
- Install the TOC lines to the transmission. See OIL COOLER LINES QUICK CONNECT FITTING .
- Install the transfer case vent hose, if equipped.
- Raise the transmission into position.
- Install the exhaust crossover pipe and the transmission support assembly. See TRANSMISSION SUPPORT .
- Remove the transmission jack.
- For vehicles equipped with a 4.3L engine, install the stud and clip securing the TOC line to the engine. See Figure. Tighten the stud to specification. See TORQUE SPECIFICATIONS .
- For vehicles equipped with a 2.2L engine, Install the nut securing the TOC lines to the engine. Tighten the nut to specification. See TORQUE SPECIFICATIONS .
- Lower the vehicle.
- Install the TOC lines to the radiator. See OIL COOLER LINES QUICK CONNECT FITTING .
- Fill the transmission to the proper level with appropriate transmission fluid. See LUBRICATION .
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.