Question about 2000 Ford Taurus

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I have AU2 factory duel fuel. Recently changed spark plugs/lead, running extremely well but started to back fire last week when stepping on accelerator whenever engine is left cold, noticeably in the morning, otherwise it's ok. Is this the problems gas mixture in the converter? Can someone please confirm or otherwise? Thanks.

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  • Ford Master
  • 85,206 Answers

What is a AU2??

Posted on Jul 12, 2019

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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fknstart
  • 404 Answers

SOURCE: Engine Fault light illuminates. Ford KA Collection

have you totally cleaned the fuse box and fuses

Posted on Jan 05, 2009

  • 31 Answers

SOURCE: 2004 F150 5.4L engine misfire

The concern is likely caused by the coil which sits on top of the spark plug. Your P0301 indicated misfire on cylinder 1. Your P0316 indicated it occurs on the first 1000 revolutions. Your P0171 indicated lean on bank one. Bank one includes cylinders 1,2,3 and 4. Your lean code is strange but could be related to misfire. I would recommend swap the coil on number one with number two. Clear the code and drive it. I would expect to see a P0302 which indicates the misfire traveled with bad coil. good luck.

Posted on Mar 03, 2009

  • 1 Answer

SOURCE: 99 Expedition - Stutters and loses power when accelerating

My was doing the same thing, it was an EGR valve and a misfire on the #2 cylinder which required a new spark plug and a coil pack
t

Posted on Mar 13, 2009

  • 14092 Answers

SOURCE: loss of power on acceleration. engine bucking.

check transmission fluid.change fuel filter and air filter.try changing up on where you buy gas .because bad gas causes problems.

Posted on Jun 26, 2009

canbruce75
  • 1776 Answers

SOURCE: 1997 Ford F150 4x4 5.4L

I would take the truck to an autoparts store and have the fault codes retrieved from the computer. Most stores will do the scan for free. I would lean toward a faulty throttle position sensor, but that's just speculation. The fault codes should narrow the problem down. Hope this helped and best wishes.

Posted on Jul 25, 2009

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