2003 lincoln navigator

540

Asked by huerta_t May 02, 2016 at 07:26 PM about the 2003 Lincoln Navigator RWD

Question type: Maintenance & Repair

hello need some help figuring out this problem
with my navi  i already rebuilt the entire engine top
to bottom changed fuel filter the tps  ok anyways
anyone no why my navi doesnt shift to passing
gear going uphills wen i start driving up and start
to accelerate the rpm hits all the way to 3000 rpm
and stays there and it wont shift down and
suddenly speed starts to reduce and its frustrating
having that problem on a navigator with the 5.4
engine so if anyone can give me some good info in
how to fix this please let me know please

7 Answers

209,715

Did you do a complete reset of the computer systems after the rebuild? if not then give it a try, I would recommend leaving the battery disconnected overnight with the headlight switch on, that should drain the capacitors completely, then turn off the headlight switch reconnect the battery and start it up then drive it as you normally would as the computers relearn the vehicles systems. if it still won't operate as it should and there is no check engine light you may have to go to the dealer and have the system reflashed to your VIN.

540

thanks for the info but my navi never had the engine light on even bfore i rebuild the engine i just dont know if its normal the way the engine and tranny work or if theres something really wrong in the tranny cause i dont think that should be normal the way it hit 3000 rpm and never shifts for more speed going uphills

209,715

You need to reset it, you don't want the ECM trying to make your rebuild work under old settings, it's just like when you add new hardware to your home PC you need to restart it to allow the new drivers to load and configure for the new equipment.

540

ok kool ill try that and go from there see wat happens thanks for the info and ur time

10

Try your catalytic converter

1 people found this helpful.
540

yep sure needed my cats change 2 of them were clogged thanks..

10

Sorry to bug but mines is doing same thing won't pick up speed over 20/30 mph but anything under that runs perfect any help plz and thank you

Your Answer:

Navigator

Looking for a Used Navigator in your area?

CarGurus has 138 nationwide Navigator listings starting at $5,800.

Postal Code:

Lincoln Navigator Experts

  • #1
    jimmyarango
    Reputation
    1,970
  • #2
    kbro
    Reputation
    640
  • #3
    T_S_T
    Reputation
    610
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Expedition
15 Great Deals out of 567 listings starting at $3,429
Used Cadillac Escalade
18 Great Deals out of 672 listings starting at $5,499
Used Chevrolet Tahoe
14 Great Deals out of 726 listings starting at $6,871
Used GMC Yukon
19 Great Deals out of 932 listings starting at $5,995
Used Cadillac Escalade ESV
10 Great Deals out of 241 listings starting at $7,999
Used Lincoln Aviator
311 listings starting at $74,553
Used Chevrolet Suburban
17 Great Deals out of 459 listings starting at $6,000
Used GMC Yukon XL
5 Great Deals out of 494 listings starting at $8,950
Used Ford F-150
206 Great Deals out of 12,290 listings starting at $2,197
Used Ford Explorer
45 Great Deals out of 2,891 listings starting at $4,999
Used Land Rover Range Rover
20 Great Deals out of 237 listings starting at $7,900
Used INFINITI QX56
3 Great Deals out of 21 listings starting at $4,999
Used Dodge Durango
41 Great Deals out of 918 listings starting at $5,995
Used Mercedes-Benz S-Class
13 Great Deals out of 229 listings starting at $6,995

Used Cars for Sale

2020 Lincoln Navigator For Sale
33 listings starting at $97,750
2019 Lincoln Navigator For Sale
37 listings starting at $86,706
2018 Lincoln Navigator For Sale
10 listings starting at $78,950
2017 Lincoln Navigator For Sale
4 Great Deals out of 20 listings starting at $45,799
2016 Lincoln Navigator For Sale
7 listings starting at $34,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.