QuestionI have a 99 Durango 4wd 5.9l. Just about 100k miles. Recently, 100 degree days, we were going out with our travel trailer just about 30 miles away and the truck ran really bad. I know I hadn't had the funds to do maintenance like I should. The temp in the engine was really hot, gage read only at the 1/2 way mark. I the truck stalled the next morning. I put in a new battery, but the truck still stalled later in the day in the drive thru. I replaced the cap and rotor and the plugs. Monday, before it got hot, I drove it back to my mechanics. They suggested new wires and I went to drive to the parts store, but it would not start.
They tested the crank sensor and it was not pulsing (what he said) Also, it read 5 volts(?)when not trying to start. Plus, my fan clutch was not working. He replaced the fan clutch, sensor (aftermarket) and plug wires. While testing it, it still quit.
So, they ordered the sensor from Dodge. He tested it today and it read on the gages correctly. I took the truck out late this afternoon to get the trailer and it stalled when I got to where I had to keep it for the last few days. Driving the trailer home after waiting 2 1/2 hours for the truck to cool, it just died at the end of the block on the way home tonight. Temp outside was 84 degrees. It would not start again until I let it cool down substantially.
any thoughts on what else I should check or have checked?
Thanks
AnswerNO: 07-03-99
SUBJECT: Engine Overheats In High Ambient Temperatures
DATE: Nov. 5, 1999
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 07-07-98, DATED NOV. 27, 1998, WHICH SHOULD BE REMOVED FROM YOUR FILES AND NOTED IN THE 1998 TECHNICAL SERVICE BULLETIN MANUAL (PUBLICATION NO. 81-699-99003). ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE CHANGES TO PART NUMBERS, CHANGES TO THE PROCEDURE, AND CHANGES TO THE TIME ALLOTTED TO PERFORM THE REPAIR.
OVERVIEW:
This bulletin involves installing a revised fan, fan drive, and fan shroud.
SYMPTOM/CONDITION:
Some Durangos may experience a high engine temperature condition (temperatures greater than 116oC. (240oF.)) when the vehicle is operated in stop-and-go traffic with ambient temperatures exceeding 32oC. (90oF.). The result from the high engine temperature may cause the following:
Engine Temperature Gauge To Read Higher Than Normal
Check Gauge Lamp To Illuminate
Warning Chime To Sound
Vehicles Equipped With Air Conditioning May Have The A/C System Disabled
NOTE: THE POWERTRAIN CONTROL MODULE (PCM) IS DESIGNED TO DISABLE THE AIR CONDITIONING SYSTEM WHEN ENGINE TEMPERATURES EXCEED A PREDETERMINED VALUE AND/OR THE A/C HIGH SIDE PRESSURE EXCEEDS 470 P.S.I. ± 20 P.S.I.. THIS IS A NORMAL CONDITION DESIGNED TO PROTECT THE ENGINE FROM OVERHEATING AND FROM DAMAGING THE A/C COMPRESSOR. ONCE THE ENGINE TEMPERATURE AND/OR A/C HIGH SIDE PRESSURE HAS LOWERED, THE PCM WILL TURN THE AIR CONDITIONING SYSTEM ON.
DIAGNOSIS:
Examine the vehicle’s cooling system for proper operation. The DRB III® can be used to ensure that the engine temperature does not exceed 99o C. (210o F.) during normal operating conditions. If the engine temperature exceeds 99o C. (210o F.) during normal operating conditions, the cooling system must be inspected and repaired. Refer to the 1999 Durango Service Manual (Publication No. 81-370-9116), pages 7-9 through 7-20 for information regarding Cooling System Diagnosis And Testing.
NOTE: THIS BULLETIN ADDRESSES ENGINE OVERHEAT CONDITIONS THAT OCCURS ONLY IN STOP-AND-GO TRAFFIC WITH AMBIENT TEMPERATURES EXCEEDING 32oC. (90oF.).
If the vehicle’s cooling system is operating normally and the customer identifies that the vehicle exhibited the previously stated SYMPTOM/CONDITION, perform the Repair Procedure.
PARTS REQUIRED:
Qty Part No. Description
1 52027709 Fan, Cooling
1 52029767AA Drive, Fan
AR (1) **52029012AD** Shroud, Fan, Four Wheel Drive
AR (1) **52028614AC** Shroud, Fan, Two Wheel Drive
REPAIR PROCEDURE:
THIS REPAIR IS COMPATIBLE WITH DAIMLERCHRYSLER'S MOBILE SERVICE PROGRAM AND DOES NOT REQUIRE HOISTS OR OTHER FULL SERVICE FACILITY SPECIAL EQUIPMENT.
Disconnect and isolate the battery negative cable.
The thermal viscous fan drive/fan blade assembly is attached (threaded) to the water pump hub shaft. Remove the fan blade/viscous fan drive assembly from the water pump by turning the attaching nut counterclockwise as viewed from the front of the vehicle. Threads on the viscous fan drive are RIGHT HANDED. A Snap-on 36mm fan wrench (Snap-on number SP346 from Cummins Diesel Tool Set (Snap-on number 2017DSP)) can be used. The water pump pulley can be held in place by one of the two following methods based upon whether the water pump pulley is pressed onto the water pump or held in place with four attachment bolts.
Pressed-On Water Pump Pulley
The water pump pulley can be held in place by using Spanner Wrench (Special Tool 6958) and Adapter Pins (Special Tool 8346).
Bolt-On Water Pump Pulley
Place a bar or screwdriver between the water pump pulley bolts to prevent the pulley from rotating.
Remove the four fan shroud bolts securing the shroud to the radiator.
Remove the fan shroud and fan blade/viscous fan drive assembly as a complete unit from the vehicle.
Remove the four bolts attaching the fan blade to the viscous fan drive.
To allow for adjustment of the **revised** fan shroud, drill the **revised upper fan shroud (see Parts Required section)** attachment holes to 15 mm (0.59 in.).
Attach the fan blade p/n 52027709 to the revised viscous fan drive p/n 52029767AA using the four bolts removed from the old assembly. Tighten the bolts to 23 N•m (17 ft. lbs.).
Position the fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit.
Install the **revised** fan shroud onto the radiator leaving the attachment bolts loose.
Install the fan blade/viscous fan drive assembly onto the water pump shaft. Tighten the nut to 27 N•m (20 ft. lbs.).
Rotate the fan by hand to ensure no contact between the fan blade and the fan shroud. Adjust the position of the fan shroud so that the clearance between the fan blades and the fan shroud are equal throughout the circumference of the shroud and there is 8 mm (0.30 in.) of clearance between the fan blades and the fan shroud. The fan shroud attachment holes can be enlarged even further if necessary to achieve proper clearance as long as the fan shroud bolts continue to have an adequate clamping surface. Tighten the fan shroud bolts.
Connect the battery negative cable and reset the clock.
Start the engine. Firmly apply the service brakes and put the transmission into "D". Perform a "brake torque" check to ensure that the engine motion does not cause the fan blades to come in contact with the fan shroud.
Perform the same test but with the transmission in "R".
If the fan blades came in contact with the fan shroud at any time during the previous two tests, readjust the fan shroud as necessary
as far as the stalling this is something that a trained dodges tech will be able to see whats going on with a DRB3.
Me personally i would haft to look at it my self to see what is causing the stalling. Could be fuel related,ign related,sensor related any number of things.
I live in the Atlanta area and would be happy to look at this for u.
