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Chrysler Repair/Code P1494: '97 3,3/3.8L T&C

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Expert: - 9/13/2011


Question
I replaced the lifters, pushrods, rocker arms and shaft on my 1997 Chrysler town and country 3.8 2wd.  Ran great with no codes for 100 miles then threw code p1494.  I cant see any leaks or cracks in any hoses.  Anything I should look for?

Answer
Hi Geoff,
The code refers to the vapor collection and recycling system which involves a leak detection pump and a three position solenoid switch. I would check over the hoses of that system in its entirety using the diagram on the hood. There are many hoses involved. Let me know if you don't have that drawing and I can xerox and postal mail it to you.
Then check the wiring between the pcm and the solenoid/pump,
pin 68 to pin 1 of the solenoid (pink/black), and from pin 77 to pin 2 at the pump(white/dark green), and pin 72 to pin 1 at the pump(yellow/black) for shorts/opens or intermittents by gently shaking the harness. Pin 2 at the solenoid and pin 3 at the pump should show 12V in the 'run' position (white/black).
Roland

Chrysler Repair

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Roland Finston

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I specialize in Chrysler/Dodge/Plymouth cars, minivans, and SUV's for the model years 1982-2008 based upon my 50-year DIY experience, factory shop manuals and wiring diagrams. I offer fast repair advice to help you minimize repair costs by helping you diagnose and do it yourself. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty.

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Five decades as a 'do-it-yourselfer' on domestic and imported cars

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Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

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Degrees in Physics/bruised knuckles.

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"Top expert of 2010" and "2011" at Allexperts. Among top 50 experts for years 2006-2009 at Allexperts.

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