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1994 Lincoln Town car. 5.2 litre engine 130.

Customer Question
000 plus miles. After starting cold...
1994 Lincoln Town car. 5.2 litre engine 130. 000 plus miles.

After starting cold engine, while accelerating,engine stumbles, backfires. sometimes starts running smooth then starts stumbling again. Runs fine after engine gets to operating temp.

Code reader say's TPC, I replaced it, cleared trouble codes, and same thing happens with same code issued.

Also got the code FPM circuit trouble.

My average MPG has dropped from 22 to 18 MPG.

What's wrong?
Submitted: 8 years ago.Category: Lincoln
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Answered in 9 minutes by:
6/28/2010
Lincoln Mechanic: Ronnie, ASE Certified Technician replied 8 years ago
Ronnie
Ronnie, ASE Certified Technician
Category: Lincoln
Satisfied Customers: 38,841
Experience: 35 years as an automotive tech
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Ronnie :

Hello,

The problem you are describing is very likely caused by a bad MAF (mass air flow sensor) and its pretty easy to determine if this is the case, When the backfiring is occuring, try unplugging the MAF sensor and drive it, if it runs good, replace the MAF.

Customer:

I'll try that,

Ronnie :

The MAF sensor both to the air filter box.

Customer:

I don't understand

Ronnie :

The MAF (mass air flow sensor) bolts to the air filter housing for location, just unplug the connector to it.

Customer:

O.K. I'll try that after work.

Ronnie :

ok sound good , I am here if you need me.

Customer:

Thanks Ronnie

Ronnie :

Your very welcome, thnk you as well.

Customer:

Your the man.

Customer:

Now I need to find a anti tamper torx bit, and spray the wire clean.

Ronnie :

So I take it you got it??

Customer:

Thanks,

Ronnie :

No you dont have to take it off the housing to clean it, just spray in the housing, if cleaning it dosnt work, just replace it, but try the cleaning first.

Ronnie :

Thank you very much as well.

Ronnie
Ronnie, ASE Certified Technician
Category: Lincoln
Satisfied Customers: 38,841
Experience: 35 years as an automotive tech
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