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Models: 1994 (BR) Ram Truck (Diesel)
THIS BULLETIN APPLIES TO 1994 VEHICLES BUILT PRIOR TO 2/14/94
Battery clamp bolt my corrode preventing secondary battery from charging. Symptoms may include white smoke on start up or hard starting in temperatures below 40 degrees F. The secondary battery as connected an parallel to the primary. Corrosion at the clamp bolt nay insulate the batteries from each other and from the intake heater relay.
1. With a digital multimeter set on the appropriate DC voltage scale, connect the negative lead to the negative post of the primary battery (driver side).
2 . With the ignition switch in the run position and the engine not running, measure the voltage across the primary battery to the positive post and record the reading. The voltage should be 12.5 volts plus or minus .5 volts depending on the state of charge of the battery.
3. Have the positive lead to the positive battery post on the secondary battery and measure the voltage. Record the reading.
4. Start the engine and repeat the measurements taken in steps 1 through 3 above with the engine running. The battery voltage should now be 13.5 to 14.5 volts. Record the readings.
5. There should be no significant difference between the readings taken either with the engine off or running. A difference of more than 0.1 volt (one tenth of one volt) would indicate that the secondary battery is not receiving a complete charge. If the voltage readings differ by 0.1 Volt or more, perform the repair procedure.
1 6035461 Battery Clamp Bolt
This bulletin involves replacing the positive battery clamp bolt on the primary battery.
Remove the positive battery clamp bolt on the primary (drivers side) battery and replace the bolt with P/N 6035461. Tighten both nuts to 5.6 Nm (50 in. lbs.).
Policy: Reimbursable within the provisions of the warranty.
Labor Operation No: 08-08-30-90 . . . . . . . . . . . . . . . . . . 0.2 Hrs.
Failure Code: P8 - New Part
Thanks to Bob Bergevin and Barry Drodge for supplying this TSB information
This page was edited on: May 3, 2004