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Can't figure out what's wrng with my 93 towncar

Tiny
CHELSIESUBER
  • MEMBER
  • 1993 LINCOLN TOWN CAR
My town car is throwing out black smoke from the tail pipe an while driving of stalls an lose power an drains the gas I have replaced my fuel pump an filter, new mass air flow sensor, pcv valve, spark plugs an wires, new coil packs, flushed radiator, new vacuum lines, and EGR valve. While replacing egr valve I removed the throttle body an also cleaned it which the channel was badly clogged.I also had my Cadillac converters removed. But I don't see a improvemeant please help me figure out what might be causing b cause my tail pipe to smoke an lose power when gasing I also can hear sum rattling coming from the gas tank an now hearing sum type of ticking or sparking nose coming from under
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Saturday, October 26th, 2013 AT 1:00 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Black smoke tells me it is running rich. Too much gas. Has the check engine light come on? Have you checked the O2 sensors?
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Saturday, October 26th, 2013 AT 5:03 PM
Tiny
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Yes ccheck engine light is on but I was told that the light might stay on due to having my cadillac converters cut an removedd also was toldd that since I had that done the o2 sensors doesn't matter anymore. Idont know what to do now that I've done everythang I coulld think of it seems as if its flooding out an I'm hearing grinding like noise coming frm the gas tank allso llosing complete power
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Saturday, October 26th, 2013 AT 5:23 PM
Tiny
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Please understand that it is a federal law that your vehicle has catalytic converters. With that said, NO NO NO. The O2 sensors need to read what is happening in the exhaust system to tell the computer how to adjust the fuel mixture. Most likely, they have gone into what is called a closed loop and the computer is running the engine as rich as it can.
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Sunday, October 27th, 2013 AT 1:08 PM
Tiny
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So what can I do to fix the problem I haave three small kids an this is our only car pls help
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Saturday, November 2nd, 2013 AT 10:26 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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If you were my customer, I would recommend that you replace the catalytic converter and then the O2 sensors if they are not there.
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Saturday, November 2nd, 2013 AT 4:33 PM

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