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 MANUALSFORD1989RANGER 2WD V6-177 2.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETECHNICAL SERVICE BULLETINSBODY/FRAME - ARC WELDING PRECAUTIONS
1989 Ford Ranger 2WD V6-177 2.9L
Body/Frame - Arc Welding Precautions
1989 Ford Ranger 2WD V6-177 2.9LSECTION Body/Frame - Arc Welding Precautions
90ford17
Article No. 90-11-6
EEC IV-ELECTRONIC CONTROL MODULES AND PROCESSORS-POSSIBLE DAMAGE FROM ARC WELDING
FORD: 1985-90 CROWN VICTORIA, ESCORT, MUSTANG, TEMPO, THUNDERBIRD 1986-90 TAURUS
LINCOLN-MERCURY: 1985-86 CAPRI
1985-90 CONTINENTAL, COUGAR, GRAND MARQUIS, MARK VII, TOPAZ, TOWN CAR 1986-90 SABLE
MERKUR: 1985-89 XR4Ti 1988-90 SCORPIO
LIGHT TRUCK: 1985-90 BRONCO II, BRONCO, ECONOLINE, F-150, F-250, F-350, RANGER 1986-90 AEROSTAR 1989-90 F SUPER DUTY 1991 EXPLORER
ISSUE: Electronic control modules, including EEC processors, may be damaged if the negative battery ground cable is not disconnected before arc welding is done to the vehicle, This occurs because the arc welding process can produce high electrical currents in the body of a vehicle when the negative battery ground cable is left connected.
ACTION: If arc welding procedures are to be performed, be sure to disconnect the battery ground cable,
CAUTION: DISCONNECT THE NEGATIVE BATTERY GROUND CABLE BEFORE USING ANY ELECTRIC WELDING EQUIPMENT
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 2800, 680000
RENDER: 1.0x
NO RELATED
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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.