Question about Ford Aerostar
It is a Evaporative Emission Control System Control Valve/Canister Purge Assembly problem.
problems could be: Obstructed, open, or cracked hoses between EVAP canister purge valve and intake manifold.
Damaged EVAP canister purge valve. A P1443 is related to the canister purge system. Most likely you have a faulty canister purge valve and flow sensor.
Unfortunately, the P1443 code doesn't point to any one specific part of the evaporative emission system Hope this helped i mean the problem is theres like 8 different things it can be i would make sure all of your hoses have no leaks then start at your canaster and move on from there to your valves to make sure their no clogged
Posted on Apr 27, 2010
I am a Ford dealer tech with a master cert in engine control diasgnosis and repair, needmore information from you to help, U mean the check engine light comes on, yellow light? 2nd what is the year of the van, last what are the fault codes you have in computers memory.
Posted on Apr 27, 2010
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Posted on Jan 02, 2017
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Trouble Code: P0134
HO2S-11 (Bank 1 Sensor 1) No Activity Detected
Trouble Code Conditions: Engine started, engine running in closed loop at a speed over 3 mph for more than 2 minutes, and the PCM detected the HO2S signal stroke rationality was more than the threshold value (0.250 volt) during the Heated Oxygen Sensor Monitor test.
HO2S signal circuit is open or shorted to ground.HO2S has deteriorated, is contaminated or has failed.PCM has failed.YOUR HO2S SENSOR IS BAD,IT COST 80.00,USE EXACT FIT PART.EASY TO REMOVE,DISCONNECT ELECTRICAL CONNECTOR,GET WRENCH AND REMOVE.5 MINUTES TO DO.Trouble Code: P0336
Crankshaft Position Sensor Performance
Trouble Code Conditions: Engine running and the PCM detected the number of CKP sensor signals counted (between the reference mark gap). did not equal the Actual number of available teeth (i.e., the CKP signals. were out or the normal window" of operation with the CMP sensor. signals okay).
CKP sensor signal circuit connections loose (intermittent fault).CKP sensor wiring harness has a connection fault (intermittent).CKP to Target Wheel "air gap" is incorrect.CKP sensor is damaged or has failed.Must remove to see.Trouble Code: P0440
EVAP System Malfunction
Trouble Code Conditions: Engine started, ECT sensor signal less than158?F at startup, IAT sensor signal more than 9.5?F, system voltage over 10.0 volts engine runtime 15-20 minutes at cruise speed, then returned to idle speed, VSS indicating 0 mph, load value 2.2 ms, canister load factor less than 4.0, fuel tank pressure less than 0.5" Hg, then after the Idle Control system and Fuel Trim had stabilized, the PCM detected a fuel vapor leak (as small as 0.040") in the EVAP system during the EVAP Leak Test.
Fuel filler cap damaged, cross-threaded or loosely installed.Small hoses or cuts present in the EVAP vapor hoses/lines.EVAP purge valve is damaged or has failed.Here you are the symptons.
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