Question about Ford E-350 Super Duty

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Where are the O2 sensors located on a 1994 ford e350 van?

The van idles rough like it wants to cut out. It starts to miss as it accelerates and cuts out sometimes in low speed.

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Hi Gerard,
The O2 sensor, also know as Lambda Sond, is screwed into the exhaust pipe.
You will find them just before, and just after the catalytic converter along the exhaust pipe.

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: 1989 Cavalier Z24 3.1 rough idle and hesitation

I had the same problem with my Z when i had it. But it worked when i just left the little hose off of the EGR valve.

Posted on Jun 13, 2009

  • 12744 Answers

SOURCE: O2 Sensor Problem?

yes an o2 sensor can cause those symptoms so can a minor vacuum leak --bad ignition wire -clogging fuel filter --sticking egr valve etc.

Posted on Mar 01, 2010

  • 34 Answers

SOURCE: Locate O2 Sensors in 1994 Cadillac ElDorado

o2 will not make your car do that you have other issues check for secondary ignition miss or primary ignition miss sounds like you are dropping a cylinder dumping raw fuel to contaminate 02 sensor find the real problem to fix your light

Posted on Nov 22, 2008

redbeard00
  • 957 Answers

SOURCE: 1994 Ford E350 transmission seems like it slips at 45-55 MPH.

If you went 1k miles since that same issue occurred I would look at the transmission. A faulty torque converter, clogged fuel filter, or a clogged CAT can cause a delay in the shifting but it would happen right away not 1k miles later.

Posted on May 05, 2010

  • 2926 Answers

SOURCE: My 2003 GMC Sierra Idles Rough And Cut Off

Before replacing the O2 sensors, I would check the fuel pressure. You may also try to have someone pull a trouble code from the powertrain control module to verify why the engine light is on. Do not replace any parts until this is done, otherwise your going to be guessing at the root cause, and it will get expensive with part replacement.

Posted on May 12, 2010

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Locate O2 Sensors in 1994 Cadillac ElDorado


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