OPERATORʼS MANUAL 21 CoolSmoke EVAP Leak Detector 12 Volt Power Leads Mode Switch Timer Shop Air In Regulator Control Pressure Gauge Fog Out Foot Switch Port Flow Gauge Polarity Light Flow Light WARNING: Before introducing pressure and fog to any system, the unit must be calibrated using shop air. Failure to calibrate the unit before each use may result in damage to the EVAP or other system under test. Always begin testing using the lowest psi setting.
Contents Introduction ............................................................................................................................................. 2 Controls & Indicators............................................................................................................................ 3-4 Pressure Gauge................................................................................................................................ 3 Flow Meter ........................................
Controls & Indicators Pressure Gauge The large easy to read pressure gauge is used to determine the calibration of the CoolSmoke, and indicate the amount of pressure that is being applied to the system under test. Flow Meter The CoolSmoke incorporates a highly accurate flow gauge. When used with a properly calibrated CoolSmoke, the flow meter can be used to determine the size of the leak. Polarity Lamp The polarity lamp is illuminated when the CoolSmoke is properly connected to a 12 Volt battery.
3 PSI Mode The CoolSmoke operates exactly the same in the 3 psi mode as it does in the 1 psi mode. The major difference is that the pressure cut-off switch is less sensitive, and will allow more flow before reaching 3 psi. SPECIAL NOTE: Occasionally, the Pressure Gauge will indicate a higher pressure than the Mode Switch allows. This is usually the result of pressure backing up from the fuel tank and system flexing. This is not harmful to the system or CoolSmoke and may be ignored.
Using the CoolSmoke Calibration - (Must be done before each test) Since the Technician will be locating a leak outside of the CoolSmoke, it is necessary to establish that there are no internal leaks inside the CoolSmoke. Be sure that the Regulator Control Knob is turned to the lowest pressure setting, fully counterclockwise. Attach the battery clips to the battery and plug in the air supply. Set the Mode Switch to Manual (Calibrate). Do not plug in the smoke tube at this time. Set the timer for 5 minutes.
Confirming a Leak Exists This feature incorporates a highly accurate flow gauge, which is used with one of the two internal automated pressure limiters to assess the suspected leak. Once the CoolSmoke is hooked up to the system or component to be tested, the technician simply selects the appropriate pressure level and applies pressure using the foot switch or the timer.
Helpful Hints The CoolSmoke has been designed to work using a standard automotive battery and normal shop air as an air supply. The CoolSmoke polarity light will not glow if the unit is not hooked up correctly. The Red Battery clip is attached to the positive and the Black to the negative. It is not necessary to use the battery of the vehicle that you are diagnosing. If the battery you are using falls below 12 volts, performance (fog production) will be reduced.
System Checks EGR Valves One of the most common uses for CoolSmoke is detecting vacuum, or exhaust leaks in and around EGR Valves. Frequently a drive ability or emissions related problem (especially NOx related) may be caused by an inoperative EGR Valve (defective diaphragm, leaking solenoid, leaking vacuum line). By applying CoolSmoke to the diagnosis, a visual result will be seen quickly. It’s also possible to fill the exhaust system from the tailpipe forward to reveal EGR related leaks.
Engine Mechanical - Head Gasket (Cooling System) A head gasket, or similar failure, may be diagnosed by filling either the crankcase or the cooling system with smoke. FOG WILL NOT ALWAYS DISPLACE LIQUID. TO CHECK FOR ANY LIQUID LEAK, THE AREA SHOULD BE DRAINED. If you suspect that you are losing coolant from the cooling system into a combustion chamber, drain the cooling system lower than the head gaskets. Remove the spark plugs from the suspect cylinders.
Oil Leaks DO NOT APPLY EXCESSIVE PRESSURE INTO AN OIL SYSTEM. IT IS POSSIBLE TO DAMAGE OR DISLODGE SEALS AND GASKETS WITH EXCESSIVE PRESSURE. Apply the CoolSmoke to the dipstick tube for a minute or so, then watch the results. Fog will eventually appear at the sight of the leak. Adapters are supplied to plug off the PCV System (both Valve & Fresh Air Intake).
Warranty FERRET BRAND LIMITED PRODUCT WARRANTY FERRET INSTRUMENTS, INC. of Cheboygan Michigan, warrants to the original purchaser that any products manufactured or supplied by Ferret Instruments, Inc. are free from defects in materials and workmanship for a period of three years from date of purchase. Our sole obligation for a product within the above warranties will be to repair or replace, at our option, any defective parts and return the product to the sender within the U.S.A.
SAFETY PRECAUTIONS • Always wear eye protection when testing vehicles. Be extra careful near batteries and moving parts. Do not lay tools on a battery. • Battery gas is highly explosive. a. If a battery explodes flush the acid away from persons skin with generous amounts of water. Follow up with a neutralizing solution of baking soda and then more water. Treat clothing, vehicle parts, and equipment similarly. Any acid traces inside equipment must be removed by generous rinsing.
