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Tiny
92 LINCOLN 4.6
  • MEMBER
  • 1992 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 148,565 MILES
I have a 92 lincoln town car and I just did a tune up spark, wires, an air filter and i've lost miles per gallon what would cause this
Thursday, March 17th, 2011 AT 5:23 AM

10 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
May be incorrect plugs or wrong plug gaps and do a scan and let me know if there are any codes to deal with, start here.
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Thursday, March 17th, 2011 AT 6:32 AM
Tiny
92 LINCOLN 4.6
  • MEMBER
  • 12 POSTS
The cats are cut off just seen that so ses is on but before I changed everything it still got 19.8 with the old stuff
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Thursday, March 17th, 2011 AT 5:45 PM
Tiny
92 LINCOLN 4.6
  • MEMBER
  • 12 POSTS
And now it kinda shakes but eveything was fine until I changed it all
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Friday, March 18th, 2011 AT 12:36 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Leads on correct way? Did you re check what I said.
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Friday, March 18th, 2011 AT 1:48 AM
Tiny
92 LINCOLN 4.6
  • MEMBER
  • 12 POSTS
Everything is on right and I put autolite what was called for the car and yes the engine light comes on/off because the cats are cut off it but it ran completely fine before I done a tune up and now it runs like crap now
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Friday, March 18th, 2011 AT 3:59 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I will be something to do with what you have done with the tune, I would carefully re check all that you have done first.
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Friday, March 18th, 2011 AT 6:18 AM
Tiny
92 LINCOLN 4.6
  • MEMBER
  • 12 POSTS
The plugs are almost stock gapped at.56 like it says and it has new wireset on it and new airfiltef so isn't anything I can recheck I've done it twice so far and it keeps going down hill in gas and performance
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Friday, March 18th, 2011 AT 7:49 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
You got any codes, you can have codes with out a check light being on as well.
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Saturday, March 19th, 2011 AT 12:01 AM
Tiny
92 LINCOLN 4.6
  • MEMBER
  • 12 POSTS
Well the engine light is on/off sometimes but can't get anywhere to read it and don't know where to put the key to cross over to read the codes
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Saturday, March 19th, 2011 AT 1:40 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Autozone and Pep Boys, as well as a number of auto parts stores will scan for codes for free. The diagnostic connector is located on the left bulkhead on the wiper cover. Jumper this connector and turn the ignition to the "Run' position. Count the flashes of the 'Check Engine' light. Count the flashes and let us know what you get.
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Thursday, June 2nd, 2011 AT 5:44 AM

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