1990 tbird fuel pump runs all the time

debbieg69
25

Asked by debbieg69 Feb 05, 2014 at 02:04 PM about the 1990 Ford Thunderbird SC

Question type: Maintenance & Repair

3.8 engine

9 Answers

Tom Demyan
95,165

Check the fuel pump relay.

debbieg69
25

I reseet the relay inside of trunk and fuel cut off button it worked for a little bit then went back to running even when engine is off. How do I reset the brain on this car

Tom Demyan
95,165

The relay might be faulty, did you test it? Try replacing. TO clear the memory , disconnect the negative battery cable for 20mins and reconnect.

debbieg69
25

Not sure how to test it. I'm ready for a stick of dynomite and a match...lol

Tom Demyan
95,165

I'd just replace the relay, about $15.

debbieg69
25

Thanks Tom ur answers have been helpful better than from others. Gonna try this. Keep ur fingers crossed.

John Brown
55

tom is right but also check for a short or grounding (broken wire casing)

tuff4x4
9,285

Yes relay is bad

debbieg69
25

Well just found out its not a sc model engine so now where would the relay be located. Is it still in the trunk

Your Answer

Add photo

Related Questions

  • 1990 tbird fuel pump runs all the time even when engine is off 2 answers

    Changed relay

    1990 Ford Thunderbird SC

    -

    Maintenance & Repair

  • Is it the Fuel Filter, Fuel Pump or Wiring? 9 answers

    My 1992 T-Bird, was doing really good until I got it smog, had an o2 sensor replace and an egr sensor. Went to a Valero gas station then it started running horribly, jerking, missing, I burned out the...

    Ford Thunderbird

    -

    Maintenance & Repair

  • Fuel Leak on 97 Tbird near tank 1 answer

    Hi, I have a 1997 Thunderbird LX 4.6 V8. Today it developed a fuel leak. I parked up at work and when I came out later I could smell fuel in the car. I had a look around and under the car and I ...

    1997 Ford Thunderbird LX

    -

    Maintenance & Repair

  • What would happen? 8 answers

    Hello it might be a dumb quistion lol. Would my TBird have a little more power if I put 91 fuel in it? Just wondering. What are the cons and pros of this fuel change? Would some thing happen to t...

    1993 Ford Thunderbird LX

    -

    Maintenance & Repair

  • fuel pump location 3 answers

    where is the fuel pump located

    1990 Ford Bronco

    -

    Maintenance & Repair

Thunderbird
Looking for a Used Thunderbird in your area?
CarGurus has 865 nationwide Thunderbird listings starting at $8,550.
ZIP:

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 Tom Demyan
Tom Demyan
Reputation 820
#2 oldtimer37
oldtimer37
Reputation 600
#3 MrBlueOval
MrBlueOval
Reputation 480
View All

Related Models For Sale

Used Ford Mustang"
1,048 Great Deals out of 25,765 listings starting at $1,329
Used Chevrolet Corvette"
308 Great Deals out of 11,063 listings starting at $3,900
Used Lincoln Town Car"
118 Great Deals out of 2,936 listings starting at $1,469
Used Chevrolet Camaro"
594 Great Deals out of 28,698 listings starting at $1,795
Used Ford Explorer"
958 Great Deals out of 51,032 listings starting at $800
Used Ford F-150"
2,674 Great Deals out of 169,223 listings starting at $1,495
Used Mazda MX-5 Miata"
85 Great Deals out of 2,380 listings starting at $2,900
Used Ford Taurus"
568 Great Deals out of 19,315 listings starting at $800
Used BMW 3 Series"
1,224 Great Deals out of 37,756 listings starting at $1,200

Used Cars For Sale

2005 Ford Thunderbird For Sale
78 listings starting at $11,995
2004 Ford Thunderbird For Sale
3 Great Deals out of 105 listings starting at $8,550
2003 Ford Thunderbird For Sale
6 Great Deals out of 112 listings starting at $9,200
2002 Ford Thunderbird For Sale
15 Great Deals out of 272 listings starting at $8,977