Cruise Control - Inoperative
NO: 08-22-97 Rev. AGROUP: Electrical
DATE: Jul. 11, 1997
SUBJECT:
Inoperative Speed Control
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-22-97, DATED JUN. 20, 1997, WHICH SHOULD BE REMOVED FROM YOUR FILES. THE BATTERY PART NUMBERS HAVE BEEN REVISED AND THE BATTERY HOLD DOWN BOLT TORQUE SPECIFICATION HAS BEEN REVISED. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS**.
MODELS:
1996 - 1997 (BR) Ram Truck
SYMPTOM/CONDITION:
Inoperative Speed Control due to a vacuum supply hose that is loose, leaking or deteriorated.
DIAGNOSIS:
Perform the speed control diagnosis as outlined in the 1997 Ram Truck Service Manual (Publication No. 81-370-7108), page 8H-2. If the diagnosis determines that the speed control is inoperative because of a loose, deteriorated, or leaking vacuum supply hose at the speed control servo **due to battery acid dripping on the speed control vacuum hose**, perform the following Repair Procedure.
PARTS REQUIRED:
1 05003576AA Gasket, Battery Temperature Sensor
AR (1) 52078320 Vacuum Hose, 3.9L/5.2L/5.9L Gas Engine Speed Control
AR (1) 52078323 Vacuum Hose, 8.0L Gas Engine And 5.9L Diesel
Engine Speed Control
AR (1) **04713921** Battery, 600 CCA
AR (1) **04713923** Battery, 810 CCA
REPAIR PROCEDURE:
This bulletin involves installing a gasket between the battery tray and the Battery Temperature Sensor (BTS) to prevent battery acid from dripping onto the speed control servo vacuum hose and replacing the battery.
1. Record the radio station presets.
2. Disconnect and isolate the battery negative cable. If the vehicle is equipped with the 5.9L Cummins diesel engine, disconnect and isolate both battery negative cables.
3. Disconnect the battery positive cable.
4. Remove the battery hold down (Figure 1) and remove the battery from the vehicle.
5. Detach the BTS pigtail connector with the plastic fastener (Christmas tree) clip from the battery tray.
NOTE:
THE WASHER RESERVOIR MUST BE REMOVED ON 8.0L V10 AND 5.9L CUMMINS DIESEL ENGINES TO GAIN ACCESS TO THE SPEED CONTROL SERVO. REFER TO THE 1997 RAM TRUCK SERVICE MANUAL (PUBLICATION NO. 81-370-7108), PAGE 8K-11 FOR INFORMATION REGARDING REMOVAL AND INSTALLATION OF THE RESERVOIR.
6. Disconnect sensor pigtail harness from the engine wire harness.
7. Using a sharp pick or screwdriver, remove the plastic fastener (Christmas tree) clip from the pigtail connector.
8. Remove the BTS from the battery tray.
9. Remove the metal washer from the BTS and discard the washer.
10. Clean the area around the BTS attachment hole. Then, remove the paper protector from the adhesive of the BTS foam gasket, p/n 05003576AA, and install the gasket onto the battery tray, placing the adhesive side of the gasket on the battery tray.
11. Feed the sensor's pigtail harness through the mounting hole in the top of the battery tray and press the sensor until it snaps into place.
12. Install the plastic fastener (Christmas tree) clip onto the pigtail harness.
13. Connect the pigtail harness and attach the plastic fastener (Christmas tree) onto the battery tray.
14. Disconnect the speed control vacuum hose from the fitting at the engine.
15. Pull the speed control vacuum hose out of the mesh sheathing.
NOTE:
IT MAY BE NECESSARY TO REMOVE THE RUBBER NIPPLE FROM THE HOSE TO BE ABLE TO SLIDE THE HOSE THROUGH THE MESH SHEATHING.
16. Remove the speed control vacuum hose from the speed control servo.
17. Install the new speed control servo vacuum hose (see Parts Required section) onto the speed control servo.
18. Slide the new speed control vacuum hose through the mesh sheathing and attach the nipple onto the fitting at the engine.
19. Position the new battery (Replace 600 CCA batteries with p/n **0471 3921** and **upgrade the 750 CCA batteries to a 810 CCA battery, p/n 04713923**) in the tray. Ensure that the positive and negative terminal posts are positioned correctly. The cable terminal clamps must reach the correct battery post without stretching the cables.
20. Loosely install the battery hold down hardware. Ensure that the battery base is correctly positioned in the tray, then tighten the hold down bolts to **4.2 Nm (35 in. lbs.)** of torque.
21. Install and tighten the battery positive cable terminal clamp. Then install and tighten the battery negative terminal clamp. If the vehicle is equipped with a 5.9L Cummins diesel engine, install both battery negative cables. Tighten the cable terminal clamp bolts to 8.5 Nm (75 in. lbs.) of torque.
CAUTION:
BE CERTAIN THAT THE BATTERY CABLES ARE CONNECTED TO THE CORRECT BATTERY TERMINALS. REVERSE POLARITY MAY DAMAGE ELECTRICAL COMPONENTS.
22. Set the radio frequencies to the stations recorded in step one and reset the clock.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No: 14-20-20-91 0.5 Hrs.
FAILURE CODE: P8 - New Part