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I have a hydrcollator mod c-6 ser. #1161, i think the cap tubes or the evap is clogged. Can i remove them and blow nitrogen through them?

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Hi,you can remove them and blow nitrogen through them to clear out the blockage,but if the evaporator is iced up you can use a hand dryer to melt the ice.

Regards

Posted on May 26, 2010

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If the cap is hard to remove, this is a common problem with older GMs. The mating surface at the end of the filler tube becomes slightly corroded and is sticking to the rubber seal on the cap. Plug the filler tube with a rag (to avoid any explosive hazard), clean the mating surface with lacquer thinner, gently buff it with crocus cloth and try that. If it still sticks, lubricate the cap rubber seal with a thin coat of a lubricant (ONLY one approved for rubber/plastic materials).

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THE UNIT HAS MOLD BUILD UP IN THE EVAP COIL IT NEEDS TO BE CLEANED PROPERLY BY REMOVING THE FREEZER RACKS AND THE SCREWS IN THE REAR OF FREEZER COMPARTMENT THEN USE HOT SOAPY WATER IN A SPRAY BOTTLE AND CLEAN THE EVAP COIL AND MAKE SURE THAT THE DRAIN TUBE ISNT CLOGGED REINSTALL PARTS THEN TURN ON BOX CHECK TEMPARATURES. FOOD AND MOLD GETS INTO THE EVAP COIL AND MOVING DOORS AND FLAPS AND AIR PASSAGES CLEAN UNIT WITH HOT WATER AND BLEACH MIXTURE TO KILL MOLD SPRAY OUT ENTIRE BOX WITH MIXTURE OF SOAP AND BLEACH WATER AND RINSE COMPLETELY

May 04, 2015 | Refrigerators

1 Answer

Codes p0455


03 VIT
no engine option stated. hard.
0455 is classic EVAP. failure.
99.9% are loose gas cap or bad gas cap.
tighten it, reset the DTC and drive, comes back, then its real.

EVAP is the fuel tanks , venting system. its a Closed system.
now.
the code means it has leak.
in the smog station the first test is the cap is removed
and a pressure test cap inserted on the filler neck. and
we do the classic, leak down rate test.
if it fails you fail.
not surprising, if the cap is tight and new, and you fail evap
we do that test too, first. omg it does leak.
i then hold a 1/2 rubber hose to my ear and find the leak.
we use pressure at 1-2 psi on the filler neck (shop air and reg)
to apply air, and test the system for leaks.
we use dry nitrogen, for safety but if frisky?, real air works too.

if not up to all that, you can inspect every inch of the system
and might find a cracked or hose that fell off the vents.
and friends.

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1 Answer

Refrigerator No Cool, Freezer Works


being uve changed every part,,,,why not try breaking out the capillary tube joint , make a new capillary after u have flush the systerm ( clean) and replace anew gas and see its working condition.

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Does not cool technician says cooling unit is "blocked" needs to be replaced. should we just get a new frig?


Tell him to remove the strainer, remove cap tube, blow out system with nitrogen, install new strainer/ filter drier, install new cap tube and charge, you should be as good as new. Hope this helps.

Oct 07, 2011 | Dometic NDR 1062 Refrigerator

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I just put a new compressor in with a reversing valve aswell I put a suction drier and a liquid line drier on.I flushed the system with proflush and nitrogen. this system is 4 yrs old I didnt put it in im...


Hello Sometimes there is a SCREEN in the liquid line just b4 the piston in the tube.You had a SEVERE burnout the filter driers are shot from doing there job even with the short run time.Also you could try pulling the piston out and blow out the cap tubes in the evap.Close the suction service valve and pressurize the pipe and let it blow out the piston holder ot help clear those tiny tubes.Use a OVERSIZE liquid drier this time,Get a 10 ton drier or better.

Sep 11, 2010 | Heating & Cooling

1 Answer

My unit is 3 years old. We have recently heard


sounds like the evap coil is freezing. it is frozen if you have low air flow. check the lines and see if your suction line is freezing. also check your filter. if you think your drain line is clogged cut the line and blow out with an air compressor or nitrogen. all you should need to fix the line would be a 3/4 in coupling or a union. hope this helps

May 31, 2010 | Goodman CLQ60AR61 Air Conditioner

1 Answer

Check engine light is on for emission evaporator failure-large


P0455 - EVAP Control System Leak Detected (No Purge Flow or Large Leak) The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
  • After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
  • Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube
  • EVAP canister purge valve stuck closed
  • Damaged EVAP canister
  • Damaged or missing fuel filler cap
  • Insufficient fuel filler cap installation
  • Loose fuel vapor hose/tube connections to EVAP system components
  • Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks)
  • Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked
  • Canister vent (CV) solenoid stuck open
  • Mechanically inoperative fuel tank pressure (FTP) sensor
Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank. ----------------------------------------------------------------------------- HX43 DTC P0457: CHECK FOR MISSING OR LEAKING FUEL FILLER CAP
  • Check for missing fuel filler cap.
  • Check for loose fuel filler cap.
  • Check for possible cross-thread fuel filler cap condition.
Is a fault present concerning the proper installation of the fuel filler cap? Yes No REPLACE cross-threaded or damaged fuel filler cap. RECONNECT and TIGHTEN the fuel filler cap only one eighth turn so that the cap initially clicks by sound or touch. CLEAR Continuous Memory DTCs. COMPLETE an Evaporative Emission Running Loss Monitor Repair Verification Drive Cycle (refer to Section 2 , Drive Cycles). RERUN Quick Test . If DTC P0455 or P0457 is present, Go to HX44 . CLEAR Continuous Memory DTCs. COMPLETE an Evaporative Emission Running Loss Monitor Repair Verification Drive Cycle (refer to Section 2 , Drive Cycles). RERUN Quick Test .

For DTC P0455 still present: Go to HX44 .

Otherwise, INFORM the vehicle owner that it is important and necessary to immediately install the fuel filler cap after every refueling event. HX44 DTC P0455: VISUAL INSPECTION FOR SUBSTANTIAL EVAPORATIVE EMISSION SYSTEM LEAKS
  • Check for missing fuel filler cap. If the cap is loose DO NOT DISTURB EVAP system.
  • Verify that both the input port vacuum hose and EVAP return tube are attached to the EVAP canister purge valve. Note: If the EVAP canister-CV solenoid assembly is not accessible during this pinpoint test step, GO to Evaporative Emissions, Section 303-13 in the Workshop Manual for removal and installation instructions.
  • Verify that the CV solenoid is properly seated on the EVAP canister (if possible).
  • Visually inspect for disconnected or cracked fuel vapor hoses/tubes between the intake manifold, the EVAP canister purge valve, the EVAP canister, the fuel vapor vent valve assembly and if applicable the fuel vapor control valve tube assembly.
  • Check for damage to the fuel filler pipe and the fuel tank.
Is a fault indicated? Yes No CONNECT or REPLACE fuel vapor hoses/tubes as required. REPLACE damaged EVAP system components (fuel filler pipe, fuel vapor vent valve assembly, fuel vapor control valve tube assembly, EVAP canister purge valve, FTP sensor and EVAP canister-CV solenoid assembly) as necessary. REFER to Evaporative Emissions, Section 303-13 in the Workshop Manual for removal and installation instructions. GO to HX45 . GO to HX45 . HX45 DTC P1443 and P0455: CHECK FOR EVAPORATIVE EMISSION SYSTEM LEAKS
    Note: When checking for leaks or blockages in the EVAP system, energize (close) the canister vent (CV) solenoid through the scan tool for a maximum of nine minutes per pinpoint test step. Then de-energize the CV solenoid prior to performing the subsequent pinpoint test step. This is done to assure proper closing of the solenoid.
  • Disconnect and plug the EVAP return tube (EVAP canister purge valve to intake manifold) at the intake manifold vacuum source.
  • Connect scan tool.
  • Key on, engine off.
  • Access VPWR PID. If the voltage is not 12 volts or greater, GO to HX61 .
  • Locate evaporative test port [marked EVAPORATIVE SERVICE PORT DO NOT USE UNREGULATED PRESSURE ABOVE 6.89 kPa (1 PSI)] near EVAP canister purge valve or EVAP canister.
  • If vehicle is not equipped with the evaporative test port, GO to HX50 .
  • Install the Rotunda Evaporative Emission System Leak Tester 310-F007 (134-00056) or equivalent at the evaporative test port.
  • Close CV solenoid by accessing Output Test Mode on the scan tool.
  • Select ALL OFF mode and push START button.
  • Regulate the nitrogen or argon gas pressure on the tester to 3.48 kPa (14 in-H 2 O).
  • Follow the instructions that come with the EVAP System Leak Tester and pressurize the EVAP system.
  • Perform the EVAP system leak test.
Does the pressure on the EVAP system stay above 1.99 kPa (8 in-H 2 O) and pass the leak test? Yes No GO to HX46 . REMOVE the EVAP System Leak Tester from the evaporative test port and REINSTALL the test port cap. GO to HX50 .

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My dryer is ot blowing hot air


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