Question about 2003 Lincoln Navigator

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How to fix Navigator vacuum leaks

My 2003 Lincoln Navigator is idle rough at a stop or park in cold weather

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: HOW TO REMOVE A HEATER CORE IN A 2003 LINCOLN NAVIGATOR

U must remove the entire dash assembly and then the heater core housing which is part of the air distribution box, time to do the job 10-15 hours.

Posted on Dec 01, 2008

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chrischronic
  • 235 Answers

SOURCE: Air suspension pump on 2003 lincoln navigator

the little orange or red ring around the air hose whare it goes in compressor, must be pushed in while pulling out on air line. a small flathead screwdriver works fine

Posted on Apr 24, 2009

  • 1 Answer

SOURCE: 2000 Lincoln Navigator with rough idling and service engine light

i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.

Posted on Jul 25, 2009

sscullys
  • 984 Answers

SOURCE: Replaced PCV Hose due to vacuum leak, idle correct

If it is the same engine design as the F-150 ( think the '98 was still the 2V V-8 ) it could be the IAC ( Idle Air Control ) is gummed up.

The F-150 it is mounted on the back of the Throttle Body ( have to take off the plastic throttle body cover to see it ), held on with 2 bolts with 8mm heads ( could be 9mm ??).

Worth taking a look, also take a look at the VAC line to the back of the throttle body, and check that the IAC connector did not get unplugged or the wires damaged from the other vac line change
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Posted on Dec 03, 2009

Testimonial: "Will do today and respond back, I have spoken to a few Ford guys, clean the T.B., check the IAC, etc. Thanks so much!"

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1 Answer

2007 Lincoln Navigator idles hard when parked or stopped


What do you mean by would idle hard ? Don't you mean ruff or inconstant . Did it idle like that before the plugs were replaced ? If not maybe one of the plugs got cracked while being installed ! Take it back to who replaced the plugs an have them check it before you go chasing problems that aren't there.

May 18, 2016 | 2007 Lincoln Navigator L

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Do you have a block heater? You can have on installed if not, then plug your car in over night. You car will run much smoother in cold weather.

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2000 Lincoln Navigator - few days ago started idling very rough when truck is at a stop or in park. Service Engine Light came right around time I noticed that it was idling rough when stopped. Following...


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Apr 06, 2011 | 2003 Lincoln Navigator

1 Answer

2003 LINCOLN NAVIGATOR: ROUGH IDLING AND SOMETIMES SHUTS OFF, CHECK ENGINE LIGHT IS ON BUT NO CODES SHOWS UP ON SCANNER


Check air filter if it's dirty replace, replace fuel filter. these are the most neglected things on a car. If you need more help let me kow.
Randy

Nov 09, 2010 | 2003 Lincoln Navigator

1 Answer

Front right airbag doesnt air up in cold weather


???? if the airbag is inflating that would be a problem in any weather!

Dec 04, 2009 | 2003 Lincoln Navigator

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2000 Lincoln Navigator with rough idling and service engine light


i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.

Jul 21, 2009 | 2003 Lincoln Navigator

1 Answer

My 2003 lincoln navigator


A safety feature on your car is that it will not shift out of "park" if you are not applying the brakes . Make sure your doing that while trying to shift out of park .

Jan 21, 2009 | 2003 Lincoln Navigator

1 Answer

MY suspension will not go up but i do hear the compresser come o


we had this problem in our shop the other day and there was water in the air lines so we put air line deicer in the lines when the truck was warm in the shop and cycled the suppension twice with a jack. you can find deicer in many truck stops and auto pat stores that sell truck parts
later
paul

Dec 24, 2008 | 2003 Lincoln Navigator

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