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
103,205

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
103,205

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
103,205

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
10,095

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 834 nationwide Thunderbird listings starting at $7,788.
ZIP:

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 Tom Demyan
Tom Demyan
Reputation 880
#2 oldtimer37
oldtimer37
Reputation 710
#3 tennisshoes
tennisshoes
Reputation 510
View All

Related Models For Sale

Used Ford Mustang"
918 Great Deals out of 29,909 listings starting at $1,995
Used Chevrolet Corvette"
326 Great Deals out of 11,233 listings starting at $3,997
Used Chevrolet Camaro"
573 Great Deals out of 33,253 listings starting at $2,595
Used Mazda MX-5 Miata"
99 Great Deals out of 2,462 listings starting at $2,950
Used Ford Taurus"
583 Great Deals out of 18,729 listings starting at $1,495
Used Lincoln Town Car"
106 Great Deals out of 2,881 listings starting at $1,299
Used Ford F-150"
2,993 Great Deals out of 151,626 listings starting at $1,000
Used Mercury Cougar"
326 listings
Used Mercedes-Benz SL-Class"
134 Great Deals out of 2,896 listings starting at $4,988
Used Porsche 911"
156 Great Deals out of 3,269 listings starting at $12,200

Used Cars For Sale

2005 Ford Thunderbird For Sale
4 Great Deals out of 62 listings starting at $11,900
2004 Ford Thunderbird For Sale
9 Great Deals out of 95 listings starting at $8,980
2003 Ford Thunderbird For Sale
8 Great Deals out of 115 listings starting at $7,788
2002 Ford Thunderbird For Sale
20 Great Deals out of 265 listings starting at $7,999