Question about 1996 Ford Aerostar Extended

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Where is the Purge Flow Sensor on a 1997 Ford Aerostar 4.0L AWD? I can't find any reference to it in the Chilton manual. I failed emissions test with a code P1443 Evaporative purge flow sensor fault. Does this mean the sensor is bad and should be replaced or is this a generic code for some other problem such as vacuum leak, PCV valve, etc.? Does my model even have this sensor?

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The purge flow sensor is on the top of the gas tank.

Posted on Oct 07, 2009

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My aussie1997 Ford xr8 has a purge solenoid near the charcoal canister, which is located inside the front left fender. Mine died but I was lucky enough to buy one on Ebay, at a fraction of OEM price....they aren't cheap. When you find it, you should be able to hear or feel it operate when the key is first turned on. A helper makes this easier...lol. Hope this helps

Posted on Oct 07, 2009

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We are assumin gthat you are talking about DTC P1443 - Evaporative Emission Control System - Vacuum System - Purge Control Solenoid or Purge Control Valve fault.

Best guess without pinpoint testing would be the purge flow sensor. This is the most common failure for this code but can be caused by anything that would limit flow across the sensor when flow is commanded by the PCM restricted cannister,stuck or plugged cannister vent solenoid,etc....

On the base model it is located in the purge line between the carbon cannister and the purge solenoid. See pic below for base model diagram(click HERE for zoom)...


10_12_2011_1_33_42_pm.gif


Click HERE for zoom...

10_12_2011_1_34_31_pm.gif

If yopu need additional details, just Contact Us Here.

Hope thie helps.

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Diagnostic code for 96 ford ranger-code number - p1443


Check the voltage on the purge flow (PF) sencor, with engine running...

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1996 Ford Aerostar 3.0 L V-6 Constant check engine light ON Ran codes. Code says vacuum leak on fuel canister. I'd like to change all the vacuum lines. Don't have a good schematic. Haynes manual only...


what codes?

The vacuum lines run from the canister to the intake manifold. One is the purge hose to deliver stored fuel vapor to the intake to be burnd when engine is warm and you are crusing at part throttle. The other line is the vacuum line to operate it.

Fuel Vapor Valve, Aerostar (4.0L Engine) The evaporative emission valve (9B593) uses a small orifice, 1.83mm (0.072 inch), that allows vapors to pass into the vapor line running forward to the evaporative emissions canister (EVAP canister) (9D653). This evaporative emission valve mounts directly into the fuel tank (9002) using a fuel vapor separator seal. Fuel vapors trapped in the sealed fuel tank are vented through the orificed evaporative emission valve. The vapors from the fuel tank leave the evaporative emission valve through a single vapor line and continue to the evaporative emissions canister in the engine compartment for storage.
-----------------------------------------------------
Fuel Vapor Canister Purge Regulator Valve, Aerostar, Ranger Removal and Installation
  1. Disconnect wire harness from evaporative emission canister purge valve (EVAP canister purge valve) (9C915).
  1. Disconnect wire harness from thermistor.
  1. Disconnect evaporative emission canister purge valve assembly from fuel vapor canister and throttle body.
  1. To install, reverse removal procedure.
-----------------------------------------------------------------

snorkelbobby_48.gif

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1 Answer

How do u fix a p1443 code or sensor on a 97 ford aerostar


sounds like a failed evap pressure sensor, or a blocked hose between the purge valve, or evac valve stuck closed. this problem is definitely in the emissions system.

Feb 25, 2011 | 1995 Ford Aerostar

1 Answer

P1443 code How do I fix this code problem on my 97 Ford ranger?


P1443 is the Evaporative Emission Control System Control Valve. Any time you get this code always check your gas cap. If it is not installed all the way, or leaks, it can cause the evap emission code to come up. If the cap is okay...

The problem is probably caused by the Canister Purge Assembly. This assembly connects the intake manifold to the charcoal canister and the assembly is made up of hoses, a valve and a sensor. On the 1997 Ranger, it is located near the front of the engine compartment on the driver's side (the canister is right behind the driver's side headlight). Apparently, if there are any cracks in the hoses, or if the valve or the sensor wears out, this will cause the check engine light to come on, and return the P1443 code.

Part numbers for the canister purge solenoid/flow sensor assemblies:

F57Z-9C987-AB Canister Purge Solenoid/Flow Sensor
Assembly - 2.3L F57Z-9C987-CA Canister Purge Solenoid/Flow Sensor
Assembly - 3.0L F57Z-9C87-BA Canister Purge Solenoid/Flow Sensor
Assembly - 4.0L

Part cost = $65 to $100 depending on engine size - good luck :O)

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If you go to a Autopro , or access Chilton Manuals, or purchase a AutoShop Manual for the Aerostar all information will be avalible . This is a big task to undertake and can be more costly than installing a new engine with a warranty . Good Luck.

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