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FORD BRONCO -> ENGINE & COOLING; swaps, specs, snorkels, vac. diagrams... -> ENGINE COOLING -> Coolant
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This is a Ford Bronco, Truck & Van Technical & Parts LINKS site developed by the MIESK5 Family & is not affiliated with the Ford Motor Co. in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to F, E Series & Cars. UPDATE; all Links via web.archive may be down; Copy orig. URL & go to http://replay.waybackmachine.org/ to search for the new archived copy
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Coolant Recovery Tank
Ethylene Glycol-Based Engine Coolant Protection Chart, Ford
Proper Fluid Concentrations TSB 93-1-10 for 88-93 Bronco, Aerostar, Bronco, Econoline, F Super Duty, F-150-350 Series, Ranger; 88-90 Bronco II, 91-93 Explorer, 93 Villager, etc.
Propylene Glycol, Ford Motor Company Position On Engine Coolants Made From Propylene Glycol TSB 96-16-4 for 89-96 Bronco, 89-90 Bronco II, 89-97 Aerostar, Econoline, F Super Duty, F-150-350 Series, Ranger, 91-97 Explorer, 93-97 Villager, 95-97 Windstar, 97 Expedition, Mountaineer, etc.
Recycled Engine Coolant Service Tip TSB 90-4-10 for 84-90 Bronco, F Series, Ranger, Bronco II, & 86-90 Aerostar & Many Others
Recycled Engine Coolant Service Tip TSB 95-18-2 for 82 and after Bronco, 80 and after F-150-350 Series, 83 and after Ranger, 84-90 Bronco II, & 86 and after Aerostar & Many Others
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Description & Operation, Diagnosis & Testing, Removal & Installation, Service Procedures, Cleaning & Inspection & Special Service Tools/Equipment in a 96 from 1996 F-150, F-250, F-350, and Bronco Workshop Manual
Source: by Ford via thedieselstop.com
Draining, Filling and Bleeding in 96 Bronco & F Series
Source: by Ford via miesk5 at FSB
DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control "...Indicates the ECT or CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting engine. Insufficient warm up time; Insufficient warm up time Low engine coolant level Leaking or stuck open thermostat Malfunctioning ECT sensor..." miesk5 Note; Remember to have engine @ Normal Operating Temperature before doing the KOER portion
Source: by slingblade at The National Lightning Owners Club
Engine Coolant Concerns TSB 93-24-08 for 84-94 Bronco, F Series, Aerostar, Econoline & many others; In Table, check level in Radiator & Coolant Recovery Tank & check for leaks usig pressure test; "...ISSUE: Engine performance concerns such as hesitation or stall, rough idle, and/or poor fuel economy may be caused by the thermostat stuck in an open position or opening at a temperature lower than specified. ACTION: Use the following "Cooling System Diagnosis" procedure to diagnose a cooling system that may not be reaching normal operating temperature. Follow the "Thermostat Diagnosis" procedure to determine if the thermostat may be at fault. Check the thermostat without removing it from the vehicle by using Rotunda Service Coolant Temperature Monitor Harness 007-00064. DIAGNOSIS PROCEDURE; A new cooling system diagnosis procedure has been developed for engines that do not reach normal operating temperature. A new thermostat diagnosis procedure also has been developed, using a new service coolant temperature monitor harness. See chart for proper diagnostic procedure. NOTE: THIS PROCEDURE WILL DIAGNOSE ONLY COOLING SYSTEMS THAT MAY NOT BE REACHING NORMAL OPERATING TEMPERATURE. IT WILL NOT DIAGNOSE A THERMOSTAT THAT CAUSES AN ENGINE OVERHEAT CONDITION. THERMOSTAT DIAGNOSIS; NOTE: DISCONNECTING THE POWERTRAIN CONTROL MODULE (PCM) TO ATTACH A BREAKOUT BOX OR AN EEC IV MONITOR WILL ERASE THE ADAPTIVE LEARNING FROM MEMORY AND MAY "HIDE" A DRIVE CONCERN TEMPORARILY UNTIL THE ADAPTIVE LEARNING IS RE-LEARNED. NOTE: THIS PROCEDURE IS MOST ACCURATE IF PERFORMED INDOORS AT LESS THAN 100°F (38°C) AMBIENT TEMPERATURE. THIS TEST MAY BE PERFORMED WITH OR WITHOUT THE HOOD OPEN AND WITH THE ENGINE WARM OR COLD. CAUTION: ALWAYS VENT THE EXHAUST TO THE OUTSIDE WHEN PERFORMING THIS TEST. 1. Check the coolant level in the radiator and coolant recovery reservoir. 2. With the key in the "off" position, proceed as follows: a. Remove the engine coolant temperature (ECT) sensor harness connector. b. Attach Rotunda Service Coolant Temperature Monitor Harness 007-00064 as a jumper between the PCM and the ECT. c. Attach Rotunda 73 Digital Multimeter 105-00051 or equivalent to the thermostat monitor harness. Voltage values (0-5vdc) may now be monitored while the sensor retains its connection to the wiring harness. NOTE: A ROTUNDA NEW GENERATION STAR TESTER (NGS) 007-00500 OR THE ROTUNDA SERVICE BAY DIAGNOSTIC SYSTEM (SBDS) 001-00001 MAY BE USED TO MONITOR THE ECT ON VEHICLES EQUIPPED WITH DATA COMMUNICATIONS LINK (DCL). THE SBDS SEQUENCE TO USE FOR THE SCREEN IS "TOOLBOX - ELECTRONIC ENGINE CONTROL AND DCL - ITEM". 3. Vehicles equipped with electric engine cooling fan(s) must have a fan running during this test (high or low speed may be used). Two methods may be used to turn the fan(s) on: a. Disconnect the A/C compressor clutch power supply and turn the climate control to A/C "ON". Or b. Disconnect the power supply to the cooling fan and supply 12 volts direct to the fan connector from the battery. NOTE: A GROUND MAY BE REQUIRED FOR SOME APPLICATIONS. 4. Place transmission in "park" or "neutral". NOTE: RUNNING THIS TEST WITH THE VEHICLE IN GEAR OR WITH THE A/C COMPRESSOR CLUTCH ENGAGED (RUNNING) WILL CAUSE IMPROPER DIAGNOSIS 5. Start the engine and allow to idle throughout this test: a. Allow engine to run for 2 minutes, then record ECT voltage. b. From now on, record ECT voltage every 60 seconds. c. When the ECT voltage trend changes direction or changes only slightly (0.03 volts or less) from the previous reading, record this as the thermostat opening voltage. d. Use the "Voltage and Corresponding Temperature Chart" shown below to obtain actual coolant temperatures. 6. If the opening voltage is GREATER than 0.75 volts (less than 180° F/ 82° C), or 0.85 volts (170° F/ 77° C) for 2.3L HSC engine only, replace the thermostat. Refer to the dealer Master Parts Catalog for correct thermostat usage. 7. If the thermostat opening voltage is LESS than 0.75 volts (greater than 180° F/ 82° C), or 0.85 volts (170° F/ 77° C) for 2.3L HSC engine only, the thermostat is good and should NOT be replaced. The "Cooling System Diagnosis Chart" should be referenced for further instructions. NOTE: The 10° F opening temperature difference for the 2.3L HSC engine is due to the ECT sensor location. OTHER APPLICABLE ARTICLES: NONE SUPERSEDES: 93-14-04 WARRANTY STATUS: INFORMATION ONLY..."
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net
High Idle & Dieseling Troubleshooting Chart in a 94, from PCED Chart 7 for a 94; Preliminary Checks; Overheating or not Reaching Normal Operating Temperature, Vacuum Leaks, Throttle Plate & Linkage, Speed Control Chain Binding/Sticking, Air Intake Tube/ Intake Manifold Leaks..." READ MORE
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net
Leak Detection with UV/blue light, General (mostly ad, but good DIY info tips)
Source: by tracerline.com
Leak Detection, General
Source: by aa1car.com
Lubricant And Maintenance Materials Specifications & Capacity Charts for 96 Bronco, F-150, F-250, F-350 & F-Super Duty
Source: by Ford via thedieselstop.com
Overview
Source: by Steve83 (Steve, That dirty old truck) at fourdoorbronco.com
Proper Fluid Concentrations TSB 93-1-10 for 88-93 Bronco, Aerostar, Bronco, Econoline, F Super Duty, F-150-350 Series, Ranger; 88-90 Bronco II, 91-93 Explorer, 93 Villager, etc.
Source: by Ford via performanceprobe.com
Propylene Glycol, Ford Motor Company Position On Engine Coolants Made From Propylene Glycol TSB 96-16-4 for 89-96 Bronco, 89-90 Bronco II, 89-97 Aerostar, Econoline, F Super Duty, F-150-350 Series, Ranger, 91-97 Explorer, 93-97 Villager, 95-97 Windstar, 97 Expedition, Mountaineer, etc.; "...Ford Motor Company does not recommend or endorse the use of engine coolants made with propylene glycol in Ford vehicles. Ford Motor Company currently recommends the use of ethylene glycol. Available information indicates that current propylene glycol-based engine coolants on the market provide less heat transfer and some may not provide enough corrosion protection to meet Ford specifications. Furthermore, claims of toxicological and environmental advantages of propylene glycol over ethylene glycol may be misleading. When significant new information is developed, Ford will review this policy... READ MORE
Source: by Ford via performanceprobe.com
Recycled Engine Coolant Service Tip TSB 95-18-2 for 82 and after Bronco, 80 and after F-150-350 Series, 83 and after Ranger, 84-90 Bronco II, & 86 and after Aerostar & Many Others
Source: by Ford via performanceprobe.com
Recycled Engine Coolant Service Tip TSB 95-18-2 for 82 and after Bronco, 80 and after F-150-350 Series, 83 and after Ranger, 84-90 Bronco II, & 86 and after Aerostar & Many Others
Source: by Ford via performanceprobe.com
Repair Price Estimator, Bronco from 90-96 and other Fords; including labor & parts, shops in area, by Zip Code
Source: by RepairPal
Warning Light Overview in 92-96; "Check Engine, Charging System, Air Bag (if Equipped), Safety Belt, High Beam, LH/RH Turn Signals, Overdrive/Overdrive Off, 4x4 Low and High Range Indicators with Lever Operated Transfer Case, Anti-Theft, Engine Coolant Temperature, Battery Voltage, Oil Pressure, Fuel Level, Tachometer (if Equipped)..." read more
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net